Post on 04-Jul-2018
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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:
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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
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:
info@generalphotonics.com
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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Genera l Photon ics Corporat ion 909.590.5473 www.genera lphoton ics .com -46-
Polarization Modules for Communications and Sensor Systems
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