1550nm Butterfly DFB laser diode
Feature
High linearity high power MQW DFB LD chip
Built-in isolator
14-pin butterfly cooled package
Output power 2~24mW
Application
2.5 Gb/s long haul DWDM Transmission
CATV forward-path
Absolute Maximum Ratings
Parameter |
Symbol |
Min |
Max |
Unit |
Condition |
Operating Case Temperature |
Tc |
-20 |
65 |
°C |
I=Iop |
Storage Temperature |
Tstg |
-40 |
85 |
°C |
-- |
Laser Forward Current |
If |
-- |
120 |
mA |
-- |
Laser Reverse Bias |
Vr |
-- |
2 |
V |
-- |
Photodiode Reverse Bias |
Vrpd |
-- |
10 |
V |
-- |
TEC Current |
Itec |
|
1.5 |
A |
-20 °C < Tc <+65 °C, |
Lead Solder Temperature |
- |
- |
260 |
°C |
- |
Lead Soldering Time |
- |
- |
10 |
S |
- |
Fiber bend radius |
- |
30 |
- |
mm |
- |
Fiber yield strength |
- |
- |
1 |
kgf |
- |
Electrical and Optical Characteristics
Parameter |
Symbol |
Min |
Typ |
Max |
Unit |
Test Conditions |
Center Wavelength |
λc |
1530 |
1550 |
1570 |
nm |
CW |
Spectral Width (-20 dB) |
Δλ |
-- |
0.1 |
1.0 |
nm |
CW |
Optical Output Power* |
Po |
2 |
-- |
16 |
mW |
CW, TL=25 °C |
Optical Isolation |
IS |
30 |
-- |
-- |
dB |
T=25 °C |
Side-mode Suppression Ratio |
SMSR |
30 |
-- |
-- |
dB |
CW |
Threshold Current |
Ith |
-- |
9 |
15 |
mA |
TL=25 °C |
Operating Current |
Iop |
-- |
-- |
120 |
mA |
CW |
Forward Voltage |
VF |
-- |
1.2 |
2.0 |
V |
CW |
Monitor Current |
Imon |
100 |
-- |
1500 |
μA |
Vrpd=5 V |
Monitor Dark Current |
ID |
-- |
-- |
50 |
nA |
Vrpd=5 V |
Operating Case Temperature |
T |
-20 |
-- |
65 |
°C |
|
Tracking Error |
γ |
-0.5 |
-- |
0.5 |
dB |
TE=10log(Po(Tc)/Po(25°C) |
Thermistor Resistance |
Rt |
9.5 |
-- |
10.5 |
KΩ |
T=25 °C |
TEC Current |
IC |
-- |
-- |
1.0 |
A |
ΔΤ=40°C |
TEC Voltage |
VC |
-- |
-- |
2.0 |
V |
ΔΤ=40°C |
Carrier Noise Ratio |
CNR |
51 |
|
|
dB |
84 CH, PAL |
Composite Second Order |
CSO |
|
-60 |
-57 |
dBc |
84 CH, PAL |
Composite Triple Beat |
CTB |
|
-67 |
-65 |
dBc |
84 CH, PAL |
Frequency range |
F |
45 |
|
870 |
MHz |
- |
Pin Description:
Pin |
Description |
Pin |
Description |
1 |
Thermistor |
8 |
Ground |
2 |
Thermistor |
9 |
Ground |
3 |
LD (N) bias |
10 |
Ground |
4 |
Detector (P) |
11 |
LD (P), ground |
5 |
Detector (N) |
12 |
LD (N), RF modulation |
6 |
TEC (+) |
13 |
LD (P), ground |
7 |
TEC (-) |
14 |
Ground |