polarization modules for communications and sensor systems ... · rate of 625 ks/s over a...
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-41- Genera l Photon ics Corporat ion 909.590.5473 www.genera lphoton ics .com
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:
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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
Polarization Modules for Communications and Sensor Systems
Polarization Scrambler Module with Microprocessor Controller
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-43- Genera l Photon ics Corporat ion 909.590.5473 www.genera lphoton ics .com
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:
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=980-1310nm
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