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-43- Genera l Photon ics Corporat ion 909.590.5473 www.genera lphoton ics .com
GeneralPhotonics’PolarizationScramblermoduleusesabreakthroughall-fibertechnologytoeffectively randomizepolarizationstates.Thismodule isdesigned tobeeasilyplugged intosensorequipmentormeasurementinstrumentswithminimaldevelopmenteffort.ItsadvanceddigitalcircuitrydeliversuniformSOPdistributionoverawideoperation temperaturerange,makingitagoodchoiceforsensorfieldapplications.ThePCD-005canberemotecontrolledviaRS-232 toset theoperationwavelengthorenable/disable thescramblingoperation.ThePCD-005deliverssuperiorperformancewithextremelylowinsertionloss,backreflection,andresidual phase and amplitude modulation.
InsertionLoss<0.05dB(withoutconnectors)<0.6dB(withconnectors)
CenterOperatingWavelength 1 Remoteormanualselectionof980nm,1060nm,1310nm,1480nm,1550nm,1600nm
OperatingWavelengthRange2 > 100 nm
OutputDegreeofPolarization 3,4 <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
ScramblingFrequenciesFactoryset4 fixed frequencies,distributedbetweenDC to>700kHz
OperatingTemperatureStandard:10to45°CExtended:-5to65°C
StorageTemperature -20to75°C
BoardDimensions 220×100×30mm(L×W×H)
Notes:1. Pleasenotethatthefiberuseddeterminestheoperatingwavelengthrange.Thestandardfibercoverswavelengthsinthe1260-1650nmrange.ThePCD-005canalsobeconfiguredtocoverthe970-1300nmrangeusingadifferentfiber.Thisfibercanhandlewavelengthsupto1650nm,butifitiscoupledtoSMF-28fiber,theperformancemaynotbequiteasgoodasnormalduetomodemismatch.PleasecontactGeneralPhotonicsfordetails.2. CenterWavelength±50nm3. At500Hzdetectionbandwidth4. 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
Tech Info: pp. 104, 215 FAQ: p. 221
Specifications:
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Genera l Photon ics Corporat ion 909.590.5473 www.genera lphoton ics .com -44-
Applications:
PDG(polarizationdependentgain)mitigation
FacilitatingPMDcompensation
FacilitatingPDLmeasurement
Polarization sensitivity eliminationin fiber sensor systems and in measurement systems
Polarization Modules for Communications and Sensor Systems
Polarization Scrambler Module with Microprocessor Controller
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-45- Genera l Photon ics Corporat ion 909.590.5473 www.genera lphoton ics .com
Seepages46,48forminiaturescrambler,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:
Polarization Modules for Communications and Sensor Systems
Polarization Scrambler Module with Microprocessor Controller
OrderingInformation:
PCD—005— — —
TemperatureRange:ST=standardET=Extended
ConnectorType:FC/PC,FC/APC,SC/PC,SC/APC,orNC=noconnectorsOthers specify
WavelengthRange:01=1260-1650nm02=970-1300nm
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