D1861A Datasheet, PDF (2/6 Pages) Agere Systems – D1861A 10 Gbits/s 1310 nm DML Module

D1861A 10 Gbits/s 1310 nm DML Module
Data Sheet
August 2000
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. RF input shall be ac coupled. It is recommended that a series induc-
tor of 100 µH be placed external to the device on Pin 3.
Parameter
Operating Temperature Range
Storage Case Temperature Range
Laser Forward Bias
Pin 3, Max. Positive Voltage¹
Pin 3, Max. Positive Current¹
Reverse Voltage Photodiode
TEC Current
1. RF connector ac coupled.
Symbol
Condition
Min
TOP
Tstg
—
VR
IR
VRPD
ITEC
—
–40
—
–40
TEC On
—
—
—
—
—
—
—
—
—
Max
Unit
80
°C
85
°C
150
mA
1
V
200
mA
20
V
1.7
A
Electrical/Optical Characteristics
Table 2. Electrical and Optical Characteristics (Case Temperature, –40 °C to + 80 °C; Laser Temperature, 25 °C
unless otherwise noted.)
Parameter
Symbol
Condition
Min
Average Optical Output Power
PO
IOP = ITH + 30 mA
4
Threshold Current (BOL)
ITH
—
Wavelength
λ
—
Wavelength Tuning Coefficient
∆λT
—
External Efficiency
η
—
ac Side-mode Suppression Ratio SMSR
IOP
Chromatic Dispersion Penalty
—
—¹
(50 km, SMF28, 200 ps/nm)
2
1290
—
0.125
35
—
Optical Isolation
—
—
32
High-frequency Cutoff (3 dB)
FHIGH
IOP²
14
Low-frequency Cutoff (3 dB)
FLOW
IOP²
—
RF Return Loss, 50 Ω
IS11I
IOP
10
(0.1 GHz—8 GHz)
Rise/Fall Time, 10%—90%
tR/tF
—¹
—
Thermoelectric Cooler Current
ITEC
—
—
Thermistor Resistance
RTH
—
9.5
Thermistor Coefficient
—
—
—
Monitor Photodiode Current
IMPD
IOP
40
1. 10 Gbits/s PRBS 2²³â€“1, ER = 8.2 dB, @ IOP, TOP = 25 °C, typical 50 mAp–p drive current.
2. Measurements made with 100 µH in series with pin 3 (laser cathode).
Typ
—
—
—
0.085
0.15
—
—
—
—
—
—
—
—
10
–4.4
—
Max
—
30
1320
—
—
—
1.0
—
—
30
—
50
1.3
10.5
—
1500
Unit
mW
mA
nm
nm/°C
W/A
dB
dB
dB
GHz
kHz
dB
ps
A
kΩ
%/°C
µA
2
Agere Systems Inc.