14-pin DFB Laser Diodes 1550nm Butterfly Semiconductor Laser
The SWLD series laser diodes cover customer selection of large wavelengths from 1260nm to 1650nm which are fabricated in a hermetically sealed 14-pin butterfly package.The laser diodes contains thermoelectric cooler (TEC), thermistor, monitor photodiode,optical isolator to secure high quality laser performance. We also have full customer selection of output powers, package types and output fibers of SM fibers, PM fibers and other special fibers. Our laser products are Telcordia GR-468 qualified, and in compliance with RoHS directives.
[Features]
1. High output power(10~100mW)
2. High-performance, multiquantum well (MQW) distributed-feedback (DFB) laser
3. Industry-standard, 14-pin butterfly package
4. Built-in TEC and optical isolator
5. ITU wavelengths available from 1260 nm —1650 nm
6. Customer selection of wavelengths
[Applications]
1. LAN, WAN and metro networks
2. C/DWDM systems
3. Fiberoptic sensors
4. Laser sources
5. CATV systems
[Specifications]
| Parameter |
Symbol |
Condition |
Min. |
Typical Value |
Max. |
Unit |
| Center Wavelength |
λc |
TL=15～35℃ CW |
1549 |
1550 |
1551 |
nm |
| Peak Optical Output Power |
PO |
|
10 |
|
|
mW |
| Optical Isolation |
|
-10 < TC < +70 oC |
30 |
|
|
dB |
| Spectral linewidth |
LW |
Full width, half maximum (FWHM) |
|
2 |
|
MHz |
| Bandwidth（@-3dB） |
BW |
|
|
2.5 |
|
GHz |
| Side-mode Suppression Ratio |
SMSR |
CW |
35 |
40 |
|
dB |
| Polarization Extinction Ratio |
ER |
|
20 |
|
|
dB |
| Wavelength Drift (EOL) |
△λ |
Tested over 25-year lifetime |
|
|
±0.1 |
nm |
| Wavelength Temperature coefficient |
Δλ/ΔT |
TEC temperature at 15℃ to 35℃ |
|
0.09 |
|
nm/°C |
| Wavelength Current coefficient |
Δλ/ΔT |
TEC temperature at 15℃ to 35℃ |
|
0.01 |
|
nm/mA |
Electrical Characteristics (at 25 °C laser temperature)
| Parameter |
Symbol |
Condition |
Min. |
Typical Value |
Max. |
Unit |
| Threshold Current |
ITH |
|
|
10 |
35 |
mA |
| Slope Efficiency |
|
CW output power 5 mW |
0.005 |
0.08 |
0.2 |
mW/mA |
| Operating current |
Iop |
PO= 10 mW (CW) |
|
100 |
200 |
mA |
| TEC set temperature |
Ts |
|
15 |
|
35 |
℃ |
| Laser Forward Voltage |
VF |
CW output power 10 mW |
|
1.2 |
2.0 |
V |
| Monitor Dark Current |
ID |
|
|
|
0.1 |
μA |
| Input Impedance |
ZIN |
|
22 |
25 |
28 |
Ω |
| Thermistor Current |
ITC |
|
10 |
|
100 |
μA |
| Thermistor Resistance |
RTH |
TL = 25 °C |
9.5 |
10 |
10.5 |
KΩ |
| TEC Current |
ITEC |
TL = 25 °C, TC = 70 °C |
|
|
1.5 |
A |
| TEC Voltage |
VTEC |
TL = 25 °C, TC = 70 °C |
|
|
3.0 |
V |
| TEC capacity |
ΔT |
Tc = 70℃ |
|
|
50 |
°C |
| Thermistor temperature |
|
|
|
|
100 |
°C |
Fiber Pigtail Specifications
| Parameter |
Description |
| Fiber Type |
PM fiber |
| Jacket Type |
900μm loose tube |
| Pigtail Length |
1.0±0.1m |
| Connector Type |
FC/APC |
| PM fiber Connector Orientation |
Please see the below figure |
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