2Agere Systems Inc.
Preliminary Data Sheet
A1611P DFB Laser Modules March 2001
Absolute Maximum Ratings
Stresses in excess of the absolute maximum ratings can cause permanent damage to the device. These are abso-
lute stress ratings only. Functional operation of the device is not implied at these or any other conditions in excess
of those given in the operational sections of the data sheet. Exposure to absolute maximum ratings for extended
periods can adversely affect device reliability.
Electrical/Optical Characteristics
Parameter Symbol Condition Min Max Unit
Operating Case Temperature Range TCIF = IOP –20 65 °C
Storage Temperature Range Tstg — –40 70 °C
Lase r Forward Bias — — — 120 mA
Reverse Voltage (Laser) VR——2V
Reverse Voltage Photodiode VRPD ——10V
TEC Current ITEC –20 °C < TC < 65 °C,
TOP = 25 °C,
IF = 100 mA
—1.5A
Table 1. Electrical and Optical Characteristics
Parameter Symbol Condition Min Typ Max Unit
Wa velength λOP IF = IOP
, T = TOP — 1310 ± 10 — nm
Optic al Output Power POIF = IOP 4 — 20 mW
Optical Isolation ISO TOP = 25 °C 30 — — dB
Side Mode Suppression
Ratio SMSR IF = IOP 30 — — dB
Threshold Current ITH 25 °C , BOL — — 30 mA
Operating Current IOP BOL — 65 120 mA
Monitor Operating Current IMON IOP = 0 mA 10 — 200 µA/mW
Thermistor Resistance RTH TOP = 25 °C — 10 ± 1 kΩ @
25 °C —kΩ
Thermisto r Temperatu re
Coefficient TCTH TOP = 25 °C — –4.4 @ 25 °C — %/°C
TEC Current ITEC 20 °C < TC < 65 °C,
TOP = 25 °C,
IF = 100 mA
——1.5A
Table 2. RF Characteristics (PAL 60)
Parameter Symbol Condition Min Typ Max Unit
Frequency Range F — 20 — 860 MHz
Frequency Response |S21| IF = 60 mA,
20 MHz—860 MHz,
TOP = 25 °C
— ± 0.5 — dB
Carrier-to-Noise Ratio CNR — — 51 — dB
Composite Second Order CSO — — 60 — dB
Composite Triple Beat CTB — 65 — dB
Relative Intensity Noise RIN — — < –155 — dB/Hz