Data Sheet
February 2001
A1611A/B DFB Laser Modules
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.
Parameter
Symbol
Condition
Min
Max
Unit
Operating Case Temperature
Range
TC
IF = IOP
–20
65
°C
Storage Case Temperature Range
Laser Forward Bias
Tstg
—
—
—
—
—
–40
—
70
120
2
°C
mA
V
Reverse Voltage (Laser)
Reverse Voltage Photodiode
TEC Current
VR
—
VRPD
ITEC
—
10
1.5
V
–20 °C < TC < 65 °C,
TOP = 25 °C,
—
A
IF = 100 mA
Electrical/Optical Characteristics
Table 1. Electrical and Optical Characteristics
Parameter
Wavelength
Symbol
Condition
Min
1300
4
Typ
Max
Unit
λOP
IF = IOP, T = TOP
IF = IOP
1310
—
1320
13
nm
Optical Output Power
Optical Isolation
PO
mW
ISO
TOP = 25 °C
IF = IOP
30
30
—
—
—
—
dB
dB
Side Mode Suppression
Ratio
SMSR
Threshold Current
ITH
IOP
25 °C, BOL
BOL
—
—
10
—
—
—
65
30
120
200
—
mA
mA
Operating Current
Monitor Operating Current
Thermistor Resistance
IMON
RTH
TCTH
IOP = 0 mA
TOP = 25 °C
TOP = 25 °C
—
µA/mW
kΩ
10 ± 1 @ 25 °C
–4.4 @ 25 °C
Thermistor Temperature
Coefficient
—
%/°C
Table 2. RF Characteristics
Parameter
Symbol
Condition
Min
Typ
Max
Unit
Frequency Range
F
—
20
—
—
860
—
MHz
dB
Frequency Response
|S21|
IF = 60 mA,
20 MHz—860 MHz,
TOP = 25 °C
± 0.5
Carrier-to-Noise Ratio*
CNR
CSO
—
—
—
51
—
dB
Composite Second Order
1611A
1611B
—
—
57
60
—
—
—
—
Composite Triple Beat
Relative Intensity Noise
CTB
RIN
—
—
—
—
66
—
—
dB
< –155
dB/Hz
* OMI = 2.8% min, 112 unmodulated NTSC channels, through fiber, up to 20 mW output power.
2
Lucent Technologies Inc.