A1751A DWDM Analog
Forward-Path or Return-Path Laser Modules
Data Sheet, Rev. 4
June 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.
Parameter*
Symbol
Min
Max
Unit
Operating Case Temperature Range
Storage Temperature Range
Monitor Photodiode Reverse Voltage
Laser Forward Current
TC
Tstg
VMPD
IF
–40
–40
—
85
85
10
150
2
°C
°C
V
—
mA
V
Reverse Voltage (Laser)
TEC Current
VR
—
ITEC
PRFIN
—
1.7
62
A
RF Input Power
—
dBm V
* The device can withstand continuous exposure to the specified limits without damage.
Characteristics
Table 1. Key Characteristics
Parameter
Symbol
Conditions
Min
Typ
Max
Unit
Frequency Range:1
Return Path
F
—
MHz
MHz
MHz
5
40
—
—
210
860
Forward Path
Frequency Response:1
5 MHz—210 MHz
—
IF = 60 mA,
TOP = 25 °C
—
—
±0.5
±0.5
—
—
dB
dB
40 MHz—860 MHz
RF Return Loss:1
5 MHz—210 MHz
40 MHz—860 MHz
RLRF
IF = 60 mA,
IF = IOP
—
—
>16
>16
—
—
dB
dB
Optical Output Power
PO
6, 8, or
10
—
—
mW
Laser Relative Intensity
Noise
RIN
IF = ITH + 70 mA,
T = 25 °C
—
< –155
—
dB/Hz
Composite Second Order2, 3
Composite Triple Beat2, 4
Available Wavelengths
Wavelength Drift5
CSO
CTB
λ
IF = IOP, OMI = 10%
IF = IOP, OMI = 10%
IP = IOP, T = TOP
—
—
—
—
—
—
–50
–60
dBc
dBc
nm
1527.94
—
1563.1
0.04
λ∆
IF = 60 mA,
T = TOP,
nm
TC varied from min—>max
Adiabatic Chirp
FM
TC
IF = 60 mA,
TOP = 25 °C,
measured at 500 MHz
40
—
—
100
85
MHz/mA
Operating Case
IF = IOP
–40
°C
Temperature Range
1. Tested in a 50 Ω resistively matched system.
2. Eight channel loading with 10% OMI and 40 km fiber length.
3. Measured at 42 MHz.
4. Measured at 553.25 MHz, 577.25 MHz, and 595.25 MHz.
5. Change in wavelength as case temperature is changed.
2
Agere Systems Inc.
FUJITSU [ FUJITSU ]
