COAX products - Modulight

Value adding solutions to optical applicationsML-COAX-X-DFB-2G5-X-X-22.5 Gb/s DFB Laser Module For CWDMApplications• 2.5 Gb/s long haul coarse WDM• Hybrid Fiber Coax (HFC) networks• Video surveillanceCOAX productsFeatures• Coaxially packaged laser diode module with SM fiber• 8 wavelength channels following ITU G.694.2 CWDM wavelength grid• For 2 mW and 3 mW typical fiber output power level• MQW Distributed Feedback (DFB) laser diode with 500mm SM fiber pigtail• InGaAs/InP monitor photodiode at rear mirror• Optical isolatorElectro-Optical Characteristics (TC=25°C)Parameter Symbol Min Typ Max Unit Test ConditionThreshold Current Ith - 11 20 mA Start, End=30mA (Step 0.5mA),2 Points extrapolation)Operating Current Iop - - 60 mA CW, PF=2mWLD Forward Voltage Vlop - - 1.8 V CW, PF=2mWSlope efficiency η 0.07 - - W/A CW, PF=2mWCentral wavelenght ∆c - * - nmSpectral Width ∆λ - 0.8 1.0 nm -20dBSide Mode Suppression Ratio SMSR 30 - - dB CW, PF=2mWRise / Fall time tr/tf - - 0.15 ns I=Ith, 20-80%Monitor Current Im 100 - - µA VRPD=5VMonitor Dark Current Id - - 100 nA VRPD=5VTracking Error TE -1.0 - +1.0 dB 25-70 CIsolation Iso 30 - - dBOutput power specification (TC=25 °C)Parameter Symbol Min Typ Max Unit Test ConditionOptical Power PF 1.4(2) 2(3) - mW l=lth+20mAThe output power level for the high power variant of the module is indicated in parenthesis15