PGT20140

PGT 201 40 1620 nm DFB Laser for Supervisory Channel Applications Key Features 1620 nm DFB laser source Operating temperature 0 ° C to +70 ° C Low threshold current Cooled – TEC Bitrates 1 – 622 Mb/s Applications Intended as a laser source for an optical supervisory channel in D-WDM systems Description The laser module is intended as a source for an optical supervisory channel for systems with in-line amplifiers as proposed by ITU-T in G.691 and G692. The module includes an InGaAs/InP DFB laser diode, an InGaAs PIN back facet monitor diode and a TEC. 1 PGT 201 40 20.8 7.7 12.6 2.54 Figure 1. Mechanical outline Pin 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11-13. 14. Description Cooler anode N.C. Thermistor Thermistor Case ground Photodiode cathode Photodiode anode LD cathode LD anode Case ground N.C. Cooler cathode 1 7 14 8 Figure 2. Pin description 2 4.9 PGT 201 40 Optical Characteristics Electrical and optical characteristics at recommended operating conditions, unless otherwise noted. Parameter Conditions Symbol Min Typ Max Unit Peak wavelength Differential quantum efficiency Side mode supression ratio @ P f = 1 mW λPeak Qeff SMSR 1613 0.035 30 1620 35 1627 nm W/A dB Electrical Characteristics Parameter Conditions Symbol Min Typ Max Unit Forward voltage Threshold current Monitor current Rise and fall time Bandwidth @ P fiber = 1 mW Vf ITh IMon tr /tf fc 400 75 2 30 470 1.0 V mA µA ns MHz Operating Conditions Parameter Symbol Min Typ Max Unit ...