Download pdf - Polarization Modules for Communications and Sensor ... MODULES OCT PRODUCTS SPECIAL POLARIZATION COMPONENTS ACCESSORIES APPLICATION GUIDE FAQS INSTRUMENTS-41- General Photonics’

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GeneralPhotonics’PolarizationScramblermoduleusesabreakthroughall-fibertechnologytoeffectivelyrandomizepolarizationstates.Thismodule isdesigned tobeeasilyplugged intosensorequipmentormeasurementinstrumentswithminimaldevelopmenteffort.ItsadvanceddigitalcircuitrydeliversuniformSOPdistributionoverawideoperation temperaturerange,makingitagoodchoiceforsensorfieldapplications.ThePCD-005canberemotecontrolledviaRS-232 toset theoperationwavelengthorenable/disable thescramblingoperation.ThePCD-005deliverssuperiorperformancewithextremely low insertion loss,back reflection,and residual phase and amplitude modulation.

InsertionLoss1 <0.05dB(withoutconnectors)<0.6dB(withconnectors)

CenterOperatingWavelength2λrange1:1310,1480,1550,1600nmλrange2:980,1060,1310nm

OperatingWavelengthRange3 > 100 nm

OutputDegreeofPolarization4,5 <5%

AveragePMD < 0.05 ps

IntrinsicPDL <0.05dB,0.01dBtypical

ReturnLoss >65dB(withoutconnectors)

OpticalPowerHandling >1000mW

ResidualAmplitudeModulation <±0.01dB

ResidualPhaseModulation < 0.1πPowerSupply ±12VDC/1Ato±15VDC/1A,+5VDC/0.2A

Power Consumption 12Wtypical

ScramblingFrequenciesFactoryset4fixedfrequencies,distributedbetweenDCto>700kHz

OperatingTemperatureStandard:10to45°CExtended:-5to65°C

StorageTemperature -20to75°C

BoardDimensions 220×100×30mm(L×W×H)

Notes:1.ForSMF-28compatiblefiber.Otherfibersmayhavehigherloss,especiallywtihconnectors.2.Pleasenotethatthefiberuseddeterminestheoperatingwavelengthrange.Thestandardfibercoverswavelengthsinthe1260-1620nmrange.ThePCD-005canalsobeconfiguredtocoverthe980-1310nmrangeusingadifferentfiber.Thisfibercanhandlewavelengthsupto1650nm,butifitiscoupledtoSMF-28fiber,theperformancemaynotbequiteasgoodasnormalduetomodemismatch.PleasecontactGeneralPhotonicsfordetails.3.CenterWavelength±50nm4.At500Hzdetectionbandwidth5.Measured fromaphotodetectoratPCD-005outputusingaspectrumanalyzer.Apolarizer isplaced in frontof thephotodetector toconvertpolarization modulation to amplitude modulation.

Features:. Minimalinsertionlossandbackreflection. Lowresidualphaseandamplitudemodulation. RS-232controloption. Remoteoperationwavelengthcontrol

Polarization Modules for Communications and Sensor Systems

Polarization Scrambler Module with Microprocessor Controller

TechInfo:pp.104,223FAQ:p.229

Specifications:

http://www.optoscience.com/

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Genera l Photon ics Corporat ion 909.590.5473 www.genera lphoton ics .com -42-

Applications:

PDG(polarizationdependentgain)mitigation

FacilitatingPMDcompensation

FacilitatingPDLmeasurement

Polarization sensitivity eliminationin fiber sensor systems and in measurement systems



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Seepages44,46forminiaturescrambler,page 77 for passive depolarizer

Figure3.Effectivescramblingbandwidth.

Accessories:ADB—001(RS-232adapterboard)

Figure1.PCD-005SOPdistributionmeasuredbyaPOD-101Dpolarimeterusingasamplingrateof625kS/soverameasurementperiodof 1 second.

Figure 2. Degree of Polarization (DOP) as afunction of detection bandwidth.

TypicalPerformanceData:



OrderingInformation:

PCD— 005 — — —

TemperatureRange:ST=standardET=Extended

ConnectorType:FC/PC,FC/APC,SC/PC,SC/APC,orNC=noconnectorsOthers specify

WavelengthRange:01=1260-1650nm02=980-1310nm

GP-DS-PSM-002-13 10/1/15

Miniature Polarization Scrambler Module

PSM-002 General Photonics’ miniature polarization scrambler module, the PSM-002, is specially designed for integration into sensor and communication systems that need to work in extreme environmental conditions. The module uses General Photonics’ patented fiber squeezer technology to effectively randomize polarization states. Unlike that of the PCD-005, the scrambling rate of this miniature scrambler is user selectable via an RS-232 command. Another attractive feature is that the scrambling function can also be enabled and disabled by a TTL trigger signal. The PSM-002 is available either as a standard board for lab applications or fully enclosed in a water-tight enclosure for applications in high humidity environments. It also comes in either standard or extended temperature versions.

General Photonics Corp. 5228 Edison Ave. Chino, CA 91710

Tel: 909.590.5473 Fax: 909.902.5536

Email:

[email protected]

Website:

www.generalphotonics.com

Specifications Applications: Sensor and communication systems Polarization sensitivity elimination Facilitating PMD Emulation PMD monitoring for PMD compensation Facilitating PDL measurement

Insertion Loss1 < 0.05 dB (without connectors) < 0.6 dB (with connectors)

Operating Wavelength 2 1260 to 1650 nm and 980 to1310 nm standard

Output Degree of Polarization 3 < 5%; 2.5% typical

Average PMD < 0.05 ps

Intrinsic PDL < 0.05 dB (0.01 dB typical)

Return Loss > 65 dB (without connectors)

Optical Power Handling > 300 mW

Power Supply 5.0 to 5.5 VDC / 9W max.

Power Consumption 0.5 to 9 watts, depending on the scrambling rate

Scrambling Rate User selectable from 0.01 to 20,000 points/s

Operating Temperature Standard: 0 to 65°C Extended: −35°C to 70°C (case temperature)

Storage Temperature −40°C to 85°C

Dimensions 96 (L) × 63.5 (W) × 18 (H) mm (board version) 115 (L) × 82.6 (W) × 19 (H) mm (enclosure)

Notes:

Unique Features: Works in extreme environmental

conditions

Minimal insertion loss and back reflection

Low residual phase and amplitude modulation

Selectable scrambling frequencies

Small size 1. For SMF-28 compatible fiber. Other fibers may have higher loss, especially with connectors.

Ordering Information: 2. Standard calibrated wavelengths are 1550nm (1260-1650nm version) and 1310nm (980-1310nm version). Others available.

3. DOP specification is <5% (to within 2σ) when averaged over 4000 or more points. PSM – 002– XX – X – XX – XXX Wavelength Range: 01 = 1260 – 1650 nm 02 = 980 – 1310 nm Enclosure: 0 = without enclosure E = with enclosure Temperature Range:

ST = standard ET = extended

Connector Type: FC/PC, FC/APC SC/PC, SC/APC or NC = No Connectors Others specify

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Micro Polarization Scrambler

ThisOEMmicro polarization scrambler integratesGeneral Photonics’ all-fiberdynamic polarization control technology with miniature electronic drive/control circuitry into a compact, self-contained device that provides full polarization control functionalitywhileminimizingvolume,powerconsumption,andcost.Twopolarizationscramblingoptionsareavailable: randomscramblingata rateofupto5discretepoints/sorsmooth tracescramblingata rateofup to60π rad/s. Scramblingcanbedisabledwitha5-voltTTLhighandenabledwithaTTL low.ThismoduleisidealforintegrationinaPDLmeasurementinstrumentorinasensorsystemtominimizepolarizationrelatedmeasurementuncertainties.Itrequiresonly±12VDCpowersupplies,and its lowpowerconsumptionenablesuse inbattery-powered handheld devices.

Features:. Compact. Lowpowerconsumption. Lowcost. Plug and play

Applications:. Minimizepolarizationrelatedfluctuationin sensor systems. Minimizepolarizationrelatedfluctuationin measurement systems. PDLorDOPmeasurement

OperatingWavelengthRange 1260to1650nmstandard,othersspecify

SmoothTraceScramblingRate

0.0192π,0.096π,0.48π,2.4π,12π,60π rad/s, please specify when ordering.

DiscreteScramblingRate 0.1,0.2,1,5points/spleasespecifywhenordering.

InsertionLossMeasurementgrade:0.05dB,excludingconnectorsControlgrade:0.1dB,excludingconnectors

ReturnLoss >65dBexcludingconnectors

ActivationLossMeasurementgrade:0.01dBControlgrade:0.1dB

PDLMeasurementgrade:<0.01dBControlgrade:<0.1dB

PMD < 0.05 ps

OpticalPowerHandling 300mW

FiberPigtail9/125µmsinglemodefiberstandard,othersspecify

ElectricalInterface 8-wireflatcable

PowerSupply ±12VDC/25mA

Power Consumption1 <0.6Wtypical

OperatingTemperature -10to70°C

StorageTemperature -40to85°C

Dimensions 2.58”(L)×1.25”(W)×0.63”(H)

Notes:1.Continuousscrambling,12πrad/s,at23°C.

Dimensions(ininches):

OrderingInformation:

PSM— 003 —S— — — — —

ConnectorType:FC/PC,FC/APCSC/PC,SC/APCNC=noconnector

Wavelength:7=1260-1650nm6=980-1310nm

ScramblingRate:Continuous:seekey*Random:seekey**

ScramblingType:R=randomC = continuous

Grade:M=MeasurementC = Control

Specifications:

*ContinuousScramblingRateKey000=0.0192π rad/s 001 = 0.09 π rad/s005=0.48π rad/s024=2.4π rad/s120=12π rad/s600=60π rad/s

**RandomScramblingRateKey 001 = 0.1 points/s002=0.2points/s 010 = 1 point/s 050 = 5 points/s