Green Diode-Pumped Solid-State Laser Systems (Hardware) · 2011. 6. 3. · NOTICE: This manual contains specifications, descriptions, and drawings for diode-pumped solid-state lasers

Operator’s Manual for

Green Diode-Pumped Solid-State Laser Systems (Hardware)

This manual covers the following lasers and laser systems:

58 GLS 201 58 GSS 201

58 GLS 301 58 GSS 301

58 GLS 305 58 GSS 305

58 GLS 309 58 GSS 309

Manufactured by

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Melles Griot Laser and Electro-Optics Group

2051 Palomar Airport Road, 200 Carlsbad, California 92009 USA

Tel: (760) 438-2131 Fax: (760) 438-5208 E-mail: [email protected]

www.mellesgriot.com

DCR:M1309 L10705-1 (A) 010309 Copyright Melles Griot, April 2001

Use of controls or adjustments or performance of procedures other than those specified herein may result in hazardous radiation exposure.

Wenn andere als die hier angebenen Kontrollfunktionen oder Einstellungen oder die Ausführung von Abläufen erfolgen, kann zu einer Aussetzung von gefährlicher Strahlung führen.

The 58GES, GLS, and GSS microlaser systems are protected under the following United States Patents and other Patents Pending: #4,809,291, #5,574,740, #5,751,751, #5,761,227, and #5,771,324.

NOTICE: This manual contains specifications, descriptions, and drawings for diode-pumped solid-state lasers manufactured by Melles Griot.

Product specifications contained in this manual are subject to change by Melles Griot Laser Group without prior notice. Melles Griot will not be responsible for errors or omissions in this manual, or for incidental or consequential damages in connection with the furnishing or use of this information.

The information contained in this manual is the property of Melles Griot Laser Group. This document may not be photocopied, duplicated, or reproduced by any means without the prior written consent of Melles Griot Laser Group.

Comments or suggestions regarding this manual are appreciated and should be sent to the following address:

Melles Griot Laser Group 2051 Palomar Airport Road, 200 Carlsbad, California 92009, USA

Attention: Customer Service Phone (760) 438-2131

Fax (760) 438-5208 E-mail: [email protected]

www.mellesgriot.com Publication date: April 2001 2001 Melles Griot

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Table of Contents

Table of Contents .............................................................iii

Introduction .......................................................................1 About This Manual........................................................................................................ 1

For Your Safety ..................................................................5 1.1 Safety Features ..................................................................................................... 5 1.2 Electrical Safety ..................................................................................................... 5 1.3 Laser Safety........................................................................................................... 6

Initial Installation ..............................................................9 2.1 Unpacking Your System ........................................................................................ 9 2.2 Identifying Components ........................................................................................10 2.3 Connecting the Components ................................................................................11

System Description .........................................................13 3.1 Laser Properties ...................................................................................................13 3.2 Controls, Indicators, and Connectors....................................................................15

Operating Your System....................................................19 4.1 Turning On the Laser System...............................................................................19 4.2 Turning Off the Laser System...............................................................................20 4.3 Pulsing the Laser System .....................................................................................21 4.4 Operating the System Using the External Interface Connector.............................21

Preventive Maintenance..................................................23 5.1 Aperture Window Cleaning Procedure..................................................................23 5.2 Heat-Sink Fins Cleaning Procedure......................................................................24 5.3 In Case of Difficulty...............................................................................................25

Specifications ..................................................................27 A1 Optical Specifications ............................................................................................27 A2 Electrical Specifications.........................................................................................28 A3 Environmental Specifications ................................................................................28 A4 Dimensions............................................................................................................29

Mounting and OEM Considerations .................................31 B1 Mounting Considerations.......................................................................................31 B2 Cooling Considerations .........................................................................................31 B3 Compliance Considerations...................................................................................31

Technology Notes............................................................33

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C1 Slope Efficiency.....................................................................................................33 C2 The V/I Curve ........................................................................................................34 C3 External Interface ..................................................................................................35 C4 RS-232 Interface Connector..................................................................................37 C5 Thermistor Characteristics ....................................................................................38

Compliance Information ..................................................39 D1 Radio-Frequency Emission Compliance ...............................................................39 D2 Laser Emission Compliance..................................................................................39 D3 Laser Emissions and Fusing .................................................................................39 D4 Laser Safety Warnings..........................................................................................40

Service, Support, and Warranty.......................................43 E1 Sales and Service Offices .....................................................................................43 E2 Warranty................................................................................................................45

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58 Series greendiode-pumped

solid-state laserhead

Introduction

Congratulations on your purchase of a Melles Griot Series 58 Series green, diode-pumped solid-state (DPSS) laser system. These laser systems represent the state of the art in DPSS laser design, providing high output power, low noise, and long life in a compact unit. These systems are available in both OEM and laboratory configurations, with power ranging from two to three watts.

Four families of product constitute the 58 Series of green DPSS lasers:

The 58 GLS XXX lasers have a single low-noise (<3% rms) output beam.

The 58 GSS XXX lasers have a single output beam. Noise is not specified.

The 58 Series green DPSS laser systems meet all relevant U.S. and European electrical and emission standards and proudly display the CE mark.

Finally, your new system is protected by a comprehensive Melles Griot warranty and our worldwide service organization.

About This Manual

This manual contains all the information needed to get your 58 Series green DPSS laser system up and running and to avoid inadvertent damage

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Introduction

to the system or accidental injury to the operator. Please read Chapters 1 through 4 completely before attempting to operate the laser system, and carefully heed all cautionary notes. If you have any questions or comments about this manual or the laser system itself, please call your local sales or service office (see Appendix E), or contact the factory at (760) 438-2131 and ask for Customer Service.

The structure of this manual Chapter 1, For Your Safety, discusses the safety issues involved with laser devices in general and CDRH Class IV (IEC Class 4) visible lasers in particular. Chapter 2, Initial Installation, describes the steps needed to safely unpack, inspect, and set up the system. Chapter 3, System Description, presents an overall view of how the system operates, and describes the function of each accessible control, indicator, and connector. Chapter 4, Operating Your System, contains a detailed, step-by-step procedure for operating the system to achieve the best possible results. Chapter 5, Preventive Maintenance describes how to care for your system and how to report difficulties.

This manual also contains several appendixes. Appendix A details the specifications of the 58 Series green DPSS laser systems, including outline and mounting drawings. Appendix B discusses mounting and compliance considerations of importance to OEM customers. Appendix C provides technical information regarding components within your laser system. Appendix D describes the compliance criteria met by the laser system and shows facsimiles of various required logotypes and labels. Finally, Appendix E describes the comprehensive Melles Griot warranty and gives the contact information for our worldwide service and support organization.

Conventions used in this manual Throughout this manual you will find information about potentially dangerous or hazardous conditions and useful notes vital for your safety. The significance of the notations is explained below.

DPSS lasers are high-voltage devices. Improper use can expose the operator or others to potentially lethal voltages. The “Hazard” icon, represented by a triangle with a lightning bolt, identifies precautions needed to avoid electrical injury or damage to the equipment. The 58 Series green DPSS lasers are Class IV (Class 4) devices (as

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determined by the Center for Devices and Radiological Health of the Federal Drug Administration and the International Electrotechnical Commission respectively), and the skin and eyes will be damaged if exposed to the direct or scattered laser beam. The “Danger” icon,

represented by a triangle with laser burst, identifies precautions needed to avoid injury from the laser beam to anyone in the area.

The “Note” icon, represented by a triangle with an exclamation point,

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indicates information that is particularly important to the optimum performance of the laser system or information about the procedure or topic under discussion.

The following acronyms are used in this manual:

CDRH Center for Devices and Radiological Health cw continuous wave FCC Federal Communications Commission IEC International Electrotechnical Commission LED light-emitting diode OEM original equipment manufacturer

The following abbreviations and symbols are used in this manual:

" inch oC degrees celcius µrad microradian A amp (ampere) ac alternating current c speed of light cm centimeter dc direct current DVM digital voltmeter Hz Hertz (cycles per second) in. inch kg kilogram kHz kilohertz lb U.S. pound m meter MHz megahertz mm millimeter mrad milliradian mW milliwatt nm nanometer p-p peak-to-peak rms root-mean-squared V volt Vac volts ac Vdc volts dc W watt

3

Introduction

To designate the controls, indicators, and connectors in this manual, the following conventions are used:

Hardware labels: These are written as they appear on the hardware (e.g., if a control is labeled “POWER” on the hardware, it will be called the POWER control in this manual; if it is labeled “Power” on the hardware, it will be referred to as the Power control).

Item names: Controls, connectors, and other items that do not have labels will be referred to by initial capitals (e.g., Laser Emission Indicator).

4

Chapter 1

For Your Safety

Introduction Please read this chapter carefully before installing or operating your laser. It includes important safety information about your laser system.

This chapter includes information about:

Safety features built into 58 Series green DPSS laser systems • • • •

Safety instructions to follow to avoid accidental electrical shock Safety instructions to follow to avoid accidental beam exposure References on laser safety

1.1 Safety Features

Because your safety is paramount, your new 58 Series green DPSS laser system has many built-in safety features to help ensure that the laser emits light only when you want it to and only when you have determined that conditions are safe for it to do so. A Laser Enable/Disable key switch prevents unauthorized access. Laser Emission Indicators on the power supply glow whenever laser emission is possible. To prevent accidental exposure to the laser beam, there is, at minimum, a 3-second delay between the time the Laser On button is pressed and laser emission occurs. A safety interlock system prevents the laser from operating unless all cables are properly connected, and remote interlock connections are provided that can be configured to shut the laser off if a laboratory door or an instrument access panel is inadvertently opened. Finally, a solid manual shutter is available that can block all laser radiation in an emergency.

Please keep in mind, however, that these built-in features will not protect you or your equipment if you do not adhere to the specific precautions and instructions delineated in this manual.

All maintenance or service requiring access to the interior of the laser or

power supply must be performed by an authorized Melles Griot representative.

1.2 Electrical Safety

The 58 Series green DPSS lasers operate at potentially lethal voltages. These voltages are present in the power supply even when the unit is turned off. Consequently, all service requiring access to the interior of the laser head or power supply must be performed by a qualified Melles Griot

1 5

For Your Safety

technician. There are no user-serviceable parts or controls inside the protective housings of the laser or power supply, and the laser system must never be operated with the covers removed.

The laser power supply contains circuits that operate at high voltage.

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THESE VOLTAGES CAN BE LETHAL. Refer any service requiring access to the inside of the laser head or power supply to your nearest Melles Griot authorized representative.

• DO NOT disconnect the protective ground terminal on the power supply ac line cord.

• DO NOT use a grounding adapter to plug the power supply into a two-wire outlet. Have a grounded three-wire outlet installed by a qualified electrician.

• DO NOT attempt to defeat the interlocks (see Laser Emission Control Devices in Appendix D).

• ALWAYS disconnect the power to the power supply before connecting or disconnecting the cables between the laser head and the power supply.

1.3 Laser Safety

Laser light can be hazardous if it comes in contact with the skin or the eye, causing burns, eye damage, and even blindness. The 58 Series laser systems described in this manual are designed solely for use by OEM manufacturers that are incorporating the lasers into equipment for resale. As such, they are not required to meet all of the safety and labeling requirements set forth in CDRH regulations 21 CFR 1040.10 and European norm EN 60825-1:1994. Nevertheless, all of the electrical requirements of these regulations (e.g., key switches, warning lights, interlocks, and time delays) are built into the systems and are easily accessible to the OEM manufacturer. Unless especially equipped, the lasers do not include the laser output shutter and compliance labels required of end-user Class IV (Class 4) laser systems. The 58 Series green DPSS lasers are classified as CDRH Class IV/IEC Class 4 devices, indicating that they are considered to be an acute hazard to the skin and eyes from direct and scattered radiation. This class of laser can also be a fire hazard if not used properly.

Never look into the laser beam, with or without appropriate safety
goggles. Permanent eye damage or blindness will result!
Keep all parts of the body and reflective materials out of the beam path as well.

Chapter 1

The 58 Series green DPSS laser systems should not be operated unless all appropriate safety precautions are taken. These include, but are not limited to:

• Providing enclosed paths for laser beams whenever possible.

• Ensuring that the work space is well ventilated. Toxic or noxious airborne contaminants may be released when the laser beam strikes some materials.

• Maintaining a high ambient light level in the laser operation area. This keeps the pupil of the eye contracted and may reduce the severity of damage from an inadvertent exposure.

• Ensuring that no combustible material is near the laser head or in or near the beam path to constitute a fire hazard. Some fire-fighting equipment (e.g., a fire extinguisher) should be in the area.

• Wearing appropriate approved laser safety glasses when working around a functioning laser device.

• Wearing appropriate protective clothing made from a suitable flame and heat-resistant material. Do not wear rings, metallic watchbands, or other metallic and/or reflective objects.

• Designating a controlled area specifically for laser operation. Access to this area should be limited to those individuals who have been instructed in the safe operation of lasers.

• Posting warning signs in conspicuous locations near the laser area.

• Setting up laser equipment so that the beam is not at eye level.

• Setting up a target covered with flat black paint or other anti-reflective coating and using shields as necessary to prevent strong reflections from going beyond the area where the laser is being used.

Adjustments, use of controls, or performance of procedures other than those specified in this manual may result in exposure to hazardous laser radiation.

For more information on laser safety, the following sources are available:

Safe Use of Lasers (Z136.1), published by: • The American National Standards Institute (ANSI)

11 West 42nd Street New York, NY 10036 Tel: (212) 642-4900

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For Your Safety

A Guide for Control of Laser Hazards, published by: • The American Conference of Governmental and Industrial Hygienists (ACGIH) 1330 Kemper Meadow Drive Cincinnati, OH 45240 Tel: (513) 742-2020

• Laser Safety Guide*, published by:

The Laser Institute of America 12424 Research Parkway, Suite 125 Orlando, FL 32826 Tel: (407) 380-1553. *Also available from Melles Griot

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Chapter 2

Initial Installation

Introduction This chapter includes information about:

Unpacking the 58 Series green DPSS laser system • • •

Inspecting the system for damage and completeness Connecting the components of the system

2.1 Unpacking Your System

Retain the shipping container. If required, replacement shipping containers may be purchased from Melles Griot. Especially designed to protect the laser system during shipment, it should always be used to ship the system to Melles Griot for service.

Save the original shipping container!

Melles Griot cannot honor the warranty for equipment not returned in the original package.

Immediately upon receipt of your Melles Griot 58 Series green DPSS laser, inspect the packaging for obvious signs of damage. The laser’s packaging is quite substantial and will protect the equipment from normal shipping stresses. If, however, the packing cartons are significantly damaged and you suspect damage has occurred to one of the components, file a claim with the shipper and have a representative from the shipper present when the unit is unpacked. When unpacking the laser system, observe the following steps: • Unpack the contents in a clean, dry, static-free environment.

During removal of the contents from the shipping carton, the possibility

1

exists for electrostatic discharge (ESD) that can damage the system. To minimize this risk, a shorting connector is attached to the power cable. Do not remove this connector until advised to do so in subsection 2.3.

• Look for dents, scratches, broken switches, and other obvious signs of damage to the components. If any damage is evident, immediately file a claim with the shipper and contact your nearest Melles Griot representative. Do not attempt to repair any damaged items. Melles Griot will arrange for repair without waiting for the claim settlement.

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• Ensure that the shorting connector is firmly in place on the laser power connector.

• Inspect all cables and connectors for bent or broken pins and broken wires.

• Check packing list to ensure that all items are present.

2.2 Identifying Components

The following components, along with any options, should always be included in your shipment.

1. 58 Series green DPSS laser head. There are several different models. Check the factory label on the laser head and the final test data sheet to determine that you have received the correct unit.

2. Model 58 PSM 290 Power Supply. Check the setup label on the bottom of the unit to verify that you have the correct supply for the laser head.

Power supplies are programmed for specific laser heads. Power supplies and laser heads are not interchangeable. Using the incorrect power supply

1

with a laser head may cause severe and permanent damage to the laser. Such damage is not covered under the Melles Griot warranty.

3. Power cable (permanently attached to the laser head).

4. Signal cable (permanently attached to the laser head).

5. Shorting connector. This connector is installed on the power cable (item 3) to prevent damage from electrostatic discharge (ESD). If this connector is not firmly in place when the system is unpacked, contact the factory immediately.

6. Power cord (US shipments only).

7. Final Inspection Data Sheet. This document shows the laser performance and quality checks at the factory, prior to shipment.

8. Operator's manual.

9. Keys (two). These are used to operate the power supply.

In addition to the items mentioned above, which should be included in every shipment, the following accessories may have been ordered. For more information about these accessories, see Appendix B.

58 ASG XXX collimator (for 58 GSS and 58 GLS series) •

Please call your Melles Griot representative if you have any questions about the options or components supplied with this laser system.

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Chapter 2

2.3 Connecting the Components

The following steps will guide you through the process of connecting the components. Do not connect the ac power cable to the power supply until instructed to do so in step 7. If you experience difficulty in identifying any of the controls mentioned below, please review the following chapter, System Description. 1. Secure the laser head in a stationary position. 2. Remove the black plastic cover or taped lens tissue from the output

aperture on the laser head. 3. Check to see that the AC Input rocker switch on the back panel of the

power supply is in the O (off) position. 4. Check to see that the key switch on the power supply is turned to the

Laser Disable position. 5. Verify that the male DB-15 connector is attached to the External

Interface port on the front panel of the power supply. For the system to operate, pin 3 must be shorted to pin 11. For details on the use of the External Interface port, see Appendix C.

6. Connect the ac power cord to the power supply and plug it into the power receptacle.

7. Remove the shorting connector from the laser head power cable connector and immediately connect the cable to POWER connector on the rear panel of the power supply. Tighten the screw mounts on the connector to ensure a firm contact to the power supply. Failure to do so can cause significant damage to the system.

8. Connect the laser head signal connector to the SIGNAL connector on the rear panel of the power supply. Tighten the screw mounts on the connector to ensure a firm contact to the power supply. Failure to do so can cause significant damage to the system.

Whenever the laser head is disconnected from the power supply, there is a risk of damage from electrostatic discharge. To minimize/eliminate this risk, a shorting connector is attached to the power cable on delivery. In the following step, the shorting connector is removed. When the connector is removed, do not touch any of the pins on the power cable. Severe damage to the laser head could result. Be sure to retain the shorting connector for later use.

9. Insert the key into the key switch and turn it clockwise to the Laser Enable position.

10. Look at the indicator lights on the front of the power supply. The Main Power indicator should be glowing green. If it does not light, please refer to Chapter 5, In Case of Difficulty, or contact your factory service representative.

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11. Disconnect the ac power cord from the power receptacle and proceed to the next chapter.

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Chapter 3

System Description

Introduction This chapter describes the overall operation of the 58 Series green DPSS laser systems and gives a functional description of all user-accessible controls, indicators and connectors.


The properties of a laser • • The function of controls, indicators, and connectors.

3.1 Laser Properties

The term “laser” was coined from the acronym for light amplification by stimulated emission of radiation. The theory behind the laser is beyond the scope of this manual, but it is important to identify the basic properties of lasers in general, and diode-pumped solid-state lasers in particular.

General laser properties All lasers produce intense beams of light that are monochromatic, coherent, and highly collimated. The wavelength (color) of the laser light is extremely pure (monochromatic) when compared to other sources of light, and all of the photons (energy) that make up the laser beam have a fixed phase relationship (coherence) with one another. This causes the light to form a beam with a very low rate of expansion (highly collimated) that can travel over great distances, or can be focused to a very small spot with a brightness that can approximate that of the sun. Because of these properties, lasers are used in a wide variety of applications in all walks of life.

Laser modes and the quality factor All laser beams have a mode structure that is determined by the specific properties of the laser design. • The spatial or transverse mode structure describes the phase

relationships across the beam’s wave front and determines the beam’s diameter, divergence, and intensity profile. TEM00 is the designation of the fundamental, or lowest order spatial mode. It is characterized by a Gaussian intensity profile with intensity at a maximum on the axis and decreasing monotonically away from the axis. The TEM00 mode also has the smallest beam diameter, the smallest beam divergence, and the best quality factor (see below). Higher order mode lasers (referred to as multimode lasers) have wave fronts with complex phase relationships, larger beam diameters, and higher divergence. In

1 13

Operating Your System

general, multimode lasers have flatter intensity profiles with localized maximums and minimums across the wave front.

• The quality factor or M2 factor is an indication of how closely the beam propagation characteristics of a laser compare to those of a theoretical TEM00 mode. The lower the number, the better the match. For a perfect match, M2 = 1. Typical lasers operating in a TEM00 mode have M2 values less than 1.5.

DPSS laser properties Diode-pumped solid-state lasers combine the best attributes of several laser types. They couple the excellent beam characteristics of gas lasers with the efficiency, long-life, and low power consumption of semiconductor diode lasers. In a DPSS laser, the output of semiconductor diode lasers is used to pump (excite) doped vanadate crystal with output at 1064 nm or 914 nm. By using nonlinear doubling techniques, the infrared output can then be converted to visible output at 532 nm (green) or 457 nm (blue) wavelengths. Because the overall power consumption is low the units can be air cooled, eliminating the need for water pumps, deionizers, and heat exchangers. (Note: for information on the characteristics of semiconductor diode lasers, see Appendix C.)

Light control vs current control

DPSS lasers normally operate in the cw (continuous wave) mode, making them very amenable to light control. With light control, as illustrated in figure 3-1, the laser output beam is monitored by a feedback circuit that controls the current to the semiconductor diode pump laser. If the overall laser output power decreases, the current to the pump laser is increased, and vice versa, maintaining the light output at a preset value. In current control, the diode laser current is kept constant at all times, and the light output is allowed to vary. In addition to keeping the light output constant, light control dramatically reduces high-frequency beam noise, particularly in the region below 3 kHz.

Laser

Amplifier

Feedback Circuit

Beam Splitter

PhotodetectorLaser Head

Power Supply

LaserOutput

Figure 3-1Block diagram of light-

control circuit

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Chapter 3

58 GLS- and GSS-Series green DPSS lasers can operate in either light-control or current-control mode.

3.2 Controls, Indicators, and Connectors

In this section, every operator-accessible control, indicator, and connector is described. The components are grouped by category, and within each category, the controls are listed in alphabetical order.

Laser head

Laser Aperture Shutter (optional): This mechanical shutter physically blocks the laser beam when in the closed position. It is required for all lasers intended for stand-alone operation. It is not included in systems intended for incorporation into OEM equipment.

Power Cable (connector): This five-pin low-inductance male connector carries the main laser current from the power supply.

Semiconductor diode laser devices are sensitive to electrostatic discharge
(ESD). To prevent damage from ESD, the system is shipped with a shorting connector attached to the power cable connector. The shorting connector should be used whenever the laser head is not attached to the power supply.
Signal Cable (connector): This male DB-25 connector carries the laser signals between the power supply and the laser head.

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Power supply

Figure 3-2Layout of controls,

indicators, and connectorson the power supply

16

Chapter 3

Power Entry Module (rocker switch and line plug): This master switch, located on the back panel of the power supply near the Line connector, controls the ac power to the system. When the switch is in the O (off) position, no ac power is present and the system is inoperable.

External Interface (connector): This DB-15 female connector on the front panel of the power supply allows the 58 Series green DPSS laser to be controlled remotely by external devices. It is also used to incorporate external safety interlocks (e.g., door switches) into the system. Appendix C lists the functions/connections of each pin for the 58 PSM 290 power supply.

Laser Disable/Enable (key switch): Turning the Laser Disable/Enable switch to the Enable position activates the thermoelectric coolers (TECs) for both the diode laser and laser crystal and drives the temperature toward predetermined set points. The key must be in the Laser Enable position for the laser to operate. For safety compliance, the key cannot be removed while the laser is in operation. Control of these keys should remain in the possession of persons who are fully familiar with, and trained in, laser safety. Except in an emergency, do not use this key switch to shut down an operating laser. Use the Laser Off button.

Turning the key to the Laser Disable position turns off both TECs immediately. The fans on the laser head and power supply will continue to operate for a minimum of 60 seconds.

Laser Emission (indicators): For redundancy, two laser emission indicators are present on the power supply. To indicate imminent laser emission, one indicator will begin blinking when the Laser On button is pressed. Both indicators will be illuminated continuously when laser light is being emitted from the laser aperture. When the Laser Off button is pressed, both indicators turn off immediately.

Laser Off (button): Pressing this button initiates the laser shut-down procedure. The laser beam and both Laser Emission indicators are extinguished immediately, and after approximately 60 seconds, the cooling fans stop. The thermoelectric coolers on the laser diode and the laser crystal will remain activated until the Laser Enable/Laser Disable key switch is turned to the Laser Disable position. The Main Power indicator will remain lit until the AC Input rocker switch is put in the O (off) position.

Laser On (button): Pressing this button initiates the laser start-up procedure. The cooling fans turn on immediately, and, after approximately three seconds, laser light will be emitted from the laser aperture.

Line/Toggle (connector): This compound connector is used to attach the ac power cord to the power supply and contains the AC Input toggle switch (listed above)

1 17


Main Power (indicator): This indicator is lit green whenever ac power is applied to the system and the Laser Enable/Laser Disable key switch is in the Laser Enable position.

POWER (connector): This 5-pin female connector is attached to the Power Cable connector from the laser head.

RS-232 (connector): This female DB-9 connector on the front panel of the power supply allows the laser to be controlled remotely from a personal computer or other device equipped with an RS-232C serial interface. The pin connections are described in Table C-4 in Appendix C. The RS-232 command set and syntax is described in the DPSS Software Reference.

SIGNAL (connector): This DB-25 female connector is attached to the Signal Cable connector from the laser head.

System Fault (indicator): This indicator blinks in groups when there is an out-of-tolerance condition in the laser or if the safety interlock connection is broken. If this indicator is lit, the laser will not start, or, if the laser is on, it will immediately shut off. The number of blinks in a group indicates the nature of the fault.

1 blink: Interlock open 2 blinks: Compliance limit error 3 blinks: Base Temperature error 4 blinks: Crystal Temperature error 5 blinks: Laser Temperature error 6 blinks: Power Supply error 7 blinks: Hardware Read error

18

Chapter 4


Introduction You are now ready to turn on your laser system. The paragraphs below will guide you through the steps required to operate your 58 Series green DPSS laser


Turning on the laser system • • • •

Turning off the laser system Operating in a pulsed mode Controlling the system remotely

4.1 Turning On the Laser System

The following procedure assumes that the laser has been set up as described in chapter 2, section 2.3, Connecting the Components.

1. Make sure that pin 3 and pin 11 on the External Interface connector are shorted together, either directly or through an external interlock.

2. Plug the system into the appropriate ac power receptacle.

3. Slide the Aperture Beam Block Shutter on the laser head (if so equipped) to the open position (with yellow stripe visible), being certain to observe all of the cautions described in Chapter 1, For Your Safety.

4. Turn the AC Input rocker switch on the back panel of the power supply to the | (on) position. The Main Power indicator should be fully illuminated.

As soon as the AC Input rocker switch is turned to the | position, the power supply front System Fault red LED and right one of two Laser Emission orange LED will light, then the power supply front Main Power green LED indicator will flash three times and an internal audible alarm will beep three time. Finally, the Main Power LED indicator will glow continuously and the System Fault and Laser Emission indicators will extinguish. If the System Fault indicator continues to blink, refer to the System Fault indicator paragraph in Section 3.2 for error codes.

5. Turn the Laser Enable/Laser Disable key switch to the Laser Enable position.

1 19


Always observe the safety precautions outlined in Chapter 1, For Your Safety

Except in an emergency situation, never turn the Laser Enable/Laser Disable key switch to the Laser Disable position until the laser has cooled down and the fans have stopped running. 6. Press and release the Laser On button. The right Laser Emission

indicator will blink for approximately three seconds, and an audible beep will be heard, to indicate that the initiation procedure is in progress. At the end of this initiation procedure, laser light will be emitted from the laser aperture, and both Laser Emission indicators will then glow continuously to indicate that laser light is being emitted from the laser system.

4.2 Turning Off the Laser System

The following steps are to be performed when turning off the laser.

1. Press the Laser Off button. The laser light will immediately turn off and the system shut-down sequence will begin.

2. The laser beam and both Laser Emission indicators will immediately be extinguished. The fans in the laser head and power supply will continue to run. After 60 seconds, the fans will shut off. Turn the Laser Disable/Enable key switch to the Laser Disable position. The Main Power indicator will remain on.

Turning the Laser Disable/Enable key to the Laser Disable position turns off the thermoelectric coolers controlling the temperature of the laser crystal and laser diode. The Main Power indicator will remain on until the AC Input rocker switch is put in the O (off ) position.

3. Remove the key and store it in a safe location.

It is not absolutely necessary to switch the AC Input rocker switch to the O (off) position, since the unit draws only a small amount of current to power the microprocessors. 4. Turn off the ac power by switching the AC Input rocker switch on the

back panel to the O (off) position (see note).

The System Fault indicator will blink once and a single audible beep will be heard. The Main Power indicator will slowly extinguish as the input filter capacitor discharges.

If, at this time, the system will be disassembled for relocation or storage, perform the following steps.

20

Chapter 4

5. Disconnect the power supply from all ac voltages by removing the line cord from the rear of the unit.

6. Disconnect the Power Cable attached to the laser head from the rear panel of the power supply, and immediately install the shorting connector on the cable connector to prevent ESD damage to the laser head.

7. Disconnect the Signal Cable attached to the laser head from the rear panel of the power supply.

8. Cover the output aperture window on the laser head with a clean, dry lens tissue, or close the laser aperture shutter, if supplied.

9. Carefully place both units, cables, key, and power cord in the original shipping carton. Store in a clean, dry, static-free area in compliance with the storage temperature parameters specified in Appendix A, Laser Specifications.

4.3 Pulsing the Laser System

A 58 Series green DPSS laser system equipped with the 58 PSM 290 power supply has the capability to operate continuously (cw) or to be pulsed from 0 to 3 kHz by applying a TTL signal to pin 1 of the External Interface connector located on the front panel of the power supply. The 58 PSM 290 power supply also incorporates an internal pulse generator that is controlled via the RS-232 interface. Refer to the DPSS Software Reference for further information.

4.4 Operating the System Using the External Interface Connector

With the exception of the System Fault indicator, the connections described below duplicate all of the controls, and indicators available from the front panel of the power supply. The pin numbers are shown in parentheses.

• Laser On (2 and 13 and 6 and 14): Momentarily and simultaneously shorting these pin pairs, and then removing the short, starts the laser on cycle. After a delay of at least 3 seconds, laser emission will occur.

• Laser Off (10 and 13 or 7 and 14): Momentarily shorting either pin pair initiates the laser off cycle. The laser beam will immediately shut off and after approximately 60 seconds the fans will shut down.

• Main Power Indicator (12, cathode and 14, anode): A +12 Vdc signal is present whenever AC power is supplied to the supply. This signal can be used to illuminate a remote LED.

• Laser Emission Indicator (4 (cathode)and 14 (anode)): A +5 Vdc signal is present when laser emission is present. The signal pulses for

1 21


at least 3 seconds, then is steady once laser emission occurs. When the Laser Off process is initiated, the signal ceases immediately. This signal can be used to illuminate a remote LED.

For a complete listing of the pin connections on the External Interface connector, refer to Appendix C.

4.5 Operating the System Using a Personal Computer

For detailed information on operating the laser system using a personal computer, please refer to the manual titled “Operator’s Manual for Green Diode-Pumped Solid-State Laser Systems (Software)”.

22

Chapter 5

Preventive Maintenance

Introduction There are no user-serviceable parts in the 58 Series green DPSS laser, and preventive maintenance is limited to cleaning the laser aperture and the heat sink fins. All fuses are internal to the power supply and entry to the supply will void the manufacturer’s warranty.

If a problem occurs with the system itself, it must be repaired by an authorized Melles Griot service representative or returned to a Melles Griot service center.


Cleaning the laser aperture window • • •

Cleaning the heat-sink fins Information needed before contacting the factory.

5.1 Aperture Window Cleaning Procedure

Required Equipment

• Dry nitrogen, canned air, or rubber squeeze bulb

• Photographic quality lens tissue

• Methanol (99.99% purity)

Verify that the laser is turned off and the power supply is unplugged from all electrical sources.

1. Wash hands thoroughly with a liquid detergent. Use clean, powder free latex gloves if available. Body oils and/or other contaminants can render cleaning procedures useless.

2. Use dry nitrogen, canned air or a rubber squeeze bulb (available from your local camera supply shop) to blow dust or lint from the aperture window surface before cleaning with solvent. Permanent damage will occur if dust scratches the aperture window coating.

Note: Do not use conventional compressed air, as it likely contains oils from the air compressor.

3. Do not try to remove contamination with a cleaning solvent other than methanol (99.99% purity). Do not use acetone.

4. Use photographic lens tissue to clean aperture window.

1 23


5. Clean window carefully. Make a single wipe with a smooth continuous motion using light pressure.

6. Use each tissue only once; dirty tissue merely redistributes contamination, it does not remove it. If cleaning is still necessary, use a new piece of lens tissue.

7. After cleaning the window, wait approximately 30 seconds to allow vapors to evaporate.

Do not remove aperture window from the front of the Laser Head at any

24

time. To do so will damage the unit and will void the manufacturer's warranty.

5.2 Heat-Sink Fins Cleaning Procedure

Required Equipment

• Photographic quality lens tissue

• Dry nitrogen or canned air

• Clean soapy water

• Lint free wipes

1. Verify that the laser system is turned off and unplugged from electrical sources.

2. Tape clean photographic quality lens tissue over the aperture window to protect window from contamination.

3. Apply soapy water to a clean wipe.

4. Carefully wipe front of fins. Do not let water run into interior of unit.

5. Hold the fan in a fixed position using a screwdriver or similar-sized object to prevent damage caused by excessive rotation speed.

6. Using dry nitrogen or canned air, blow-dry the fins being careful not to blow water into the interior of the unit.

7. Carefully wipe down surrounding area for extraneous residues and/or contaminants.

8. Carefully remove tissue from aperture window.

9. Verify that no contaminants are presents on the window. If there are, follow the aperture window cleaning instructions described in paragraph 5.1.

Chapter 5

5.3 In Case of Difficulty

If a problem occurs with your laser system that cannot be alleviated by the routine preventive maintenance procedures described above, it must be repaired by an authorized Melles Griot service representative or returned to a Melles Griot service center.

Reporting information Please have the following information ready for the Melles Griot customer representative:

• Laser head and power supply model numbers and serial numbers • Approximate purchase date and hours in service • Accessories, options, or modifications installed • All information from the laser head data label • Symptoms of the malfunction

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This page is intentionally left blank.

26

Appendix A

Specifications

A1 Optical Specifications

58 GLS-Series Low-Noise Single-Beam Systems Model 58 GLS 301 58 GLS 305 58 GLS 309 Output Power (W): 2.0 2.5 3.0 Wavelength (nm): 532 ± 0.5 Beam Quality (M2): <4.0 Linewidth (nm): <0.5 Polarization: Linear Extinction Ratio: >100:1 Beam Ellipticity <1.5:1 Beam Diameter1,2 (mm): 0.25 + 0.025 Beam Divergence1,3 (full angle, mrad): <12 Beam Pointing Stability4,5,7 (µrad): <40 Power Stability (rms over 8 hours): 3% Amplitude Noise6 (rms) <3%

58 GSS-Series Standard Single-Beam Systems

Model 58 GSS 301 58 GSS 305 58 GSS 309 Output Power (W): 2.0 2.5 3.0 Wavelength (nm): 532 ± 0.5 Beam Quality (M2): <4.0 Linewidth (nm): <0.5 Polarization: Linear Extinction Ratio: >100:1 Beam Ellipticity <1.5:1 Beam Diameter1,2: 0.25 + 0.025 Beam Divergence1,3 (full angle, mrad): <12 Beam Pointing Stability4,5,7 (µrad): <40 Power Stability (rms over 8 hours): 3%

1. Beam diameter (waist) and divergence measurements are made at the 1/e2 point. 2. The effective beam diameter using the optional beam collimator is approximately 7X the diameter given in

the table. 3. The effective beam divergence using the optional beam collimator is approximately 2 mrad full angle. 4. Beam pointing stability is measured at constant temperature. 5. The effective beam pointing stability with the optional beam collimator is <10µrad. 6. Amplitude noise is specified from 20 Hz to 1 MHz. 7. After five minute warm-up.

1 27

Specifications

A2 Electrical Specifications

Model 58 PSM 290 Operating Voltage 100 to 240 Vac, 50 to 60 Hz (auto-switching) Power Requirement 225 W (maximum) Current Noise 30 mA rms (maximum)

3 Hz to 1 MHz @ 20 A Current Regulation Yes Light Regulation Yes Power Adjust Range 10% to Full Power Pulsed Operation Repetition Rate 0 to 2000 Hz Rise/Fall Time (APC) <1.5 msec @ 0.01 to 0.15 W

<300 µsec @ 0.15 to 3.0 W External Input TTL Compatible Internal Pulse Generator Yes Maximum Pulse Width 60 sec Minimum Pulse Separation 0.5 msec, optical may differ Timing Accuracy 1% Current Set Resolution 0.01 A Current Set Accuracy ±0.1 A Power Set Resolution 0.01 W Power Set Accuracy ±5%

A3 Environmental Specifications

Operating Temperature 10oC to 35oC Storage Temperature -10oC to 60oC Relative Humidity (Operating) 0 to 95%, non-condensing Laser Head Weight 3.8 kg (8.36 lbs) Power Supply Weight 3.6 kg (6.4 lbs)

28

Appendix A

A4 Dimensions

Figure A-158 Series DPSS Laser Head

with cooling fan and heatsink

1 29

Specifications

Figure A-258 PSM 290 Power supply

dimensions

30

Appendix B

Mounting and OEM Considerations

This appendix discusses some specific issues that are of importance to the OEM manufacturer.

B1 Mounting Considerations

The 58 GLS- and GSS-Series green DPSS lasers are designed to be mounted horizontally, baseplate down, using the black baseplate attached to the bottom of the laser. Mounting the laser in any other orientation is not recommended. If your application requires horizontal plane of polarization instead of a vertical orientation, contact Melles Griot concerning the availability of lasers with the desired polarization orientation.

Output beam exit angle is not colinear with mechanical axis.

To secure the laser, the baseplate should be mounted on a flat surface (flatness of 0.001”/1”, 32 micro inch surface finish) that extends under the entire baseplate. The baseplate should be retained by four screws (1/4-20 inch or M6) with flat washers. The screws should be tightened to a maximum of 20 lb-in (2.25 Nm).

B2 Cooling Considerations

For reliable operation, 58 Series green DPSS lasers require an adequate flow of cool air. To ensure proper airflow, there must be a minimum of ½-inch clearance between the air intake and exhaust ports and any obstructing surface. A full inch or more of clearance is preferred.

The temperature of the air entering the air intake ports must never exceed 35oC. Ensure that hot air exhausted from the laseris not recirculated into the air intake at the front of the laser. An optional laser module without integrated heat-sink is available for OEM applications.

B3 Compliance Considerations

The 58 Series green DPSS laser systems are Class IV or Class 4 laser systems as defined by 21 CFR 1040.10 and EN60825-1:1994, respectively. Although they incorporate many of the features mandated by United States and international regulatory agencies for laser devices, they may not be used as stand-alone laser sources unless an optional CDRH compliance package is purchased. Once the laser is incorporated into another piece of equipment, it becomes the responsibility of the equipment

1 31


manufacturer or integrator to make sure that the overall device conforms to the applicable regulations and norms.

32

Appendix C

Technology Notes

At the heart of a DPSS laser is the laser diode. The power vs current curve shown in Figure C-1 below illustrates the output characteristics of a laser diode as a function of input current. At low values of the input, the device acts as a light-emitting diode (LED), producing a relatively small amount of incoherent light. At a threshold value, where the population inversion is large enough so that gain by stimulated emission can overcome the scattering and absorption losses, the laser threshold is reached. As current increases above the threshold value, the light output increases rapidly. The light is now coherent laser light. Ideally, the light output should increase linearly with current, as shown in the figure, but above a given current damage will occur and output power will drop rapidly.

Figure C-1Light output of laser diode

as a function of drivecurrent

C1 Slope Efficiency

One defines a slope efficiency to characterize the laser diode output in this region. The slope efficiency is defined as the increase in optical output power divided by the increase in electrical input power. The definition applies only to the region where the output is increasing linearly. It is an important figure of merit that is used to characterize the laser performance.

1 33


C2 The V/I Curve

The voltage drop across the laser is often acquired during electrical characterization. This characteristic is similar to the analogous characteristic of any other type of semiconductor diode and is largely invariant with temperature, as depicted in Figure C-2.

Diode laser manufacturers usually place the forward voltage on the X axis, in compliance with conventional practice in the electronics industry for other types of diodes.

Companies manufacturing instrumentation to characterize diode lasers often present the curve in the manner of Figure C-2, with the forward current on the X axis. Thus, other performance curves - as will be described in later sections - may be overlaid onto the V/I curve. Conventional electronics people would call this an I/V curve, rather than accept our nomenclature of a V/I curve. The typical voltage drop across a diode laser at operating power is 1.5 volts. V/I data are most commonly used in derivative characterization techniques.

Figure C-2Laser diode voltage as a

function of current

34

Appendix C

C3 External Interface

External Interface (connector): This DB-15 female connector on the front panel of the power supply allows the 58 Series green DPSS laser to be controlled remotely by external devices. It is also used to incorporate external safety interlocks (e.g., door switches) into the system. Table C-1 below lists the functions/connections of each pin for the 58 PSM 290 power supply.

Pin VoltagePresent

Notes Description

1 TTL

1 TTL-level input for pulsed operation. Logic high sets normal power or current, logic low sets standby power or current. See note (1) for enabling and disabling external TTL modulation without a computer

2 +5 V 2,4 Laser On (active low). Momentarily short to pin

13 to start laser. Pin 6 must simultaneously be shorted to pin 14 for the laser to turn on.

3 0V 3,4 Safety interlock. Must be shorted to pin 11 for laser to operate.

4 0V

4,5 Laser emission indicator (anode to pin 14). Activates an external LED when laser emission occurs. Duplicates the function of both Laser Emission Indicators on the front panel.

5 TTL Internal TTL Output. Internal TTL modulation monitor output.

6 0 V 2,4 Laser On (active high). Momentarily short to

pin 14 to start laser. Pin 2 must simultaneously be shorted to pin 13 for the laser to turn on.

7 4,6 Laser Off (active high). Momentarily short to pin 14 to turn laser off.

8 Not used

9

7 Light control/current control select. Open for current control, short to pin 13 for light control. See note 7 for changing modes without a computer.

10 +5 V 4,6 Laser Off (active low). Momentarily short to pin 13 to turn laser off.

Table C-1External Interface Pin

Descriptions for the58 PSM 290

1 35


11 3,4 Safety Interlock. See pin 3.

12 0 V 5 Main Power indicator (anode to pin 14).

Voltage is present whenever laser is enabled (see pin 5)

13 Signal Ground

All voltages are measured with respect to this pin.

14 +5 V 8 LED Supply

15 Chassis Ground

Chassis Ground

Notes:

(1) External modulation is disabled if pin 1 is open when power is first applied. External modulation is enabled if pin 1 is at a logic low when power is first applied. The external modulation status can always be changed at any time with RS-232 commands.

(2) Pin 2 must be shorted to 13 and, simultaneously, pin 6 shorted to pin 14, then both released for the laser to turn on. Conditions for the redundant laser turn on can be meet with a momentary double pole, single throw relay or switch. The power supply can not be set-up to automatically turn-on the laser with the main power.

(3) Conditions for the safety interlock can be meet with a single pole, single throw relay or switch or a wire short.

(4) This pin must be floating with respect to chassis ground.

(5) The power supply has internal current limiting resistors. An LED can be connected directly to the indicated pins.

(6) Either pin 7 shorted to pin 14 or pin 10 shorted to pin 13 will turn off the laser. Conditions for the redundant laser turn off can be meet with a momentary double pole, single throw relay or switch. Shorting either pin combinations with a wire prevents the laser from tuning on.

(7) Current control is selected if pin 9 is open when power is first applied. Power control is selected if pin 9 is at a logic low when power is first applied. The control state can always be changed at any time with RS-232 commands.

(8) Do not use pin 12 to power any other external circuits.

36

Appendix C

C4 RS-232 Interface Connector

RS-232 (connector): This female DB-9 connector on the front panel of the power supply allows the laser to be controlled remotely from a personal computer or other device equipped with an RS-232C serial interface. The pin connections are described in Table C-2 below.

Pin Description

1 Not Used

2 TXD (Output)

3 RXD (Input)

4 Connected to pin 6

5 GND (Signal ground)

6 Connected to pin 4

7 Not Used

8 Not Used

9 Not Used

Table C-2RS-232 Connector

Pin

1 37


C5 Thermistor Characteristics

The 58 Series DPSS laser head has three thermistors for temperature measurement. There are two for the thermal electric cooler temperature set points for the 1) diode laser and the 2) crystal laser resonator sections and finally the 3) base plate over temperature protection. All three thermistors are 10,000 ohms (Ω) for a temperature of 25 degrees celsius (°C). The thermistor resistance is inversely proportional to the temperature change, meaning as the thermistor reading increases the actual temperature is decreasing. The following conversion table is an approximate correlation of this two parameters. The tolerances change across the temperature ranges, approximately +/- 100 Ω @ 25°C; +/- 1300 Ω @ 10°C; and +/- 400 Ω @ 45°C.

Temp. °C Resistance Ω

10 18,790

11 17,980

12 17,220

13 16,490

14 15,790

15 15,130

16 14,500

17 13,900

18 13,330

19 12,790

20 12,260

21 11,770

22 11,290

23 10,840

24 10,410

25 10,000

26 9,605

27 9,227

28 8,867

Temp. °C Resistance Ω

29 8,523

30 8,194

31 7,880

32 7,579

33 7,291

34 7,016

35 6,752

36 6,500

37 6,258

38 6,026

39 5,805

40 5,592

41 5,389

42 5,193

43 5,006

44 4,827

45 4,655

Table C-3Resistance/

TemperatureCorrelation

38

Appendix D

Compliance Information

D1 Radio-Frequency Emission Compliance

This equipment generates, uses, and can radiate radio-frequency energy. If it is not installed and used in accordance with this manual, it may cause interference to radio communications. It has been tested and found to comply with the limits for a Class A computing device pursuant to Subpart J of Part 15 of FCC rules, and European norm EN55011:1994, which are designed to provide reasonable protection against such interference when operated in a commercial environment. Operation of this equipment in residential areas is likely to cause interference, in which case, the user, at his or her own expense, will be required to take whatever measures may be necessary to correct the interference.

D2 Laser Emission Compliance

The 58 Series laser systems described in this manual are designed solely for use by OEM manufacturers that are incorporating the lasers into equipment for resale. As such, they are not required to meet all of the safety and labeling requirements set forth in CDRH regulations 21 CFR 1040.10 and European norm EN 60825-1:1994. Nevertheless, all of the electrical requirements of these regulations (e.g., key switches, warning lights, interlocks, and time delays) are built into the systems and are easily accessible to the OEM manufacturer. Unless especially equipped, the lasers do not include the laser output shutter and compliance labels required of end-user Class IV (Class 4) laser systems.

D3 Laser Emissions and Fusing

The following is general emission data on the Series 58 Series green DPSS lasers. Laser medium: Nd:YVO4

Emission duration: Continuous

Full beam diameter: 0.25 ± 0.025 mm at waist

Full beam divergence: < 12 mrad

Operating wavelengths: 532 nm, 1064 nm, and 808 nm

Maximum output power: 5.0 W @ 532 nm, 10 mW @ 1064 nm, 10 mW @ 808 nm

1 39

Service, Support, and Warranty

The following fuse, located in the power supply is to be replaced only by Melles Griot certified service personnel. Fuse: T 6.3 A/250 V, 1500 A interrupt capacity, 5x 20mm

D4 Laser Safety Warnings

The following labels shown in Figure D-1 are required by the U.S. Food and Drug Administration, Center for Devices and Radiological Health (CDRH) as well as by the standard, EN60825-1:1994. Figure D-2 shows the location of these labels on the 58 Series DPSS laser system. Figure D-1

58 Series labellocations.

LASER RADIATION AVOID EYE OR SKIN EXPOSURE TO DIRECT OR SCATTERED RADIATION

CLASS 4 LASER PRODUCT

MAXIMUM OUTPUT POWER: 5 WATTS AT 532nm 10mW AT 1064 nm

CLASSIFICATION PER EN60825-1: 1994

AVOID EXPOSURE LASER RADIATION IS EMITTED FROM THIS

APERTURE

40

58 Series Green Diode-Pumped Solid-State Lasers

LABEL, MG LOGO

LABEL, LASER RADIATION

LABEL, APERTURE

LABEL, IEC CLASSIFICATION

LABEL, WARRANTY

LABEL, IEC

LABEL, PATENT

LABEL, MODEL IDENTIFICATION

1 41

Appendix E


The 58 Series green DPSS laser systems contain no user-serviceable parts but, depending upon usage rate, and conditioning, should give years of trouble-free service. Nonetheless, if you should experience problems, Melles Griot is committed to providing the best possible support and service.

E1 Sales and Service Offices

To find an authorized Melles Griot service facility near you, contact the nearest Melles Griot office, listed below, or contact the factory at (760) 438-2131.

United States of America 2051 Palomar Airport Road, 200 Carlsbad, California 92009 Phone: (800) 645-2737 (Toll Free) (760) 438-2131 Fax: (760) 438-5208 E-mail: [email protected]

Canada 18 Antares Drive, Suite 104 Nepean, Ontario K2E 1A9 Phone: (800) 267-3497 (Toll Free) (613) 226-5880 Fax: (613) 226-5885 E-mail: [email protected]

Denmark See Sweden and Denmark

France 12 Avenue Jean Bart 78960 Voisons Le Bretonneux, France Phone: (01) 3012-0680 Fax: (01) 3060-0851 E-mail: [email protected]

1 43


Germany Lilienthalstraße 30-32 64625 Bensheim Phone: (06251) 84060 Fax: (06251) 840622 E-mail: [email protected]

Japan Pine Building 3F, 3-11-2 Shibuya Shibuya-ku, Tokyo 150 Phone: (03) 3407-3614 Fax: (03) 3486-0923 E-mail: [email protected]

The Netherlands Hengelder 23, P.O. Box 272 6900 AG Zevenaar Phone: (0316) 333041 Fax: (0316) 528187 E-mail: [email protected]

Singapore 994 Bendemeer Road #06-05 Kallang Basin Industrial Estate Singapore 339943 Phone: 392-5368 Fax: 392-5508 E-mail: [email protected]

Sweden and Denmark Box 7071, Måttbandsvägen 12 S-187 12 Täby Phone: (08) 630-8950 Fax: (08) 630-0745 E-mail: [email protected]

United Kingdom St. Thomas Place Cambridgeshire Business Park Ely, Cambridgeshire, England Phone: (01353) 654500 Fax: (01353) 654555 E-mail: [email protected]

44

58 Series Green Diode-Pumped Solid-State Lasers

E2 Warranty

Unless otherwise specified, all Melles Griot 58 Series DPSS lasers and power supplies are covered by the comprehensive warranty described on the order confirmation.

1 45

Documents

Green Diode-Pumped Solid-State Laser Systems (Hardware) · 2011. 6. 3. · NOTICE: This manual contains specifications, descriptions, and drawings for diode-pumped solid-state lasers