1550nm 50mW 3kHz/1kHz Narrow Line-width DFB Laser Source SM Fiber Output
This fiber laser has a rare earth-doped fiber distributed feedback (DFB) laser cavity structure that emits a single longitudinal mode laser with a wavelength of 1550nm. The spectral linewidth is less than 3kHz and the output spectral side mode suppression ratio exceeds 60dB. It can provide module package and is an ideal laser source for applications such as sensing.
[Features]
Spectral linewidth ≤ 3kHz
All-fiber DFB resonator
Wavelength stable without mode hopping
[Applications]
Lidar
Acoustic sensing, hydrophone
Optical fiber distributed sensing
[Specification]
Parameters |
Unit |
Typical Value |
Remarks |
Model |
— |
NLFL-1550-50-SM |
|
Working Wavelength |
nm |
1550±0.5 |
1540~1560nm Customizable |
Spectral Linewidth |
kHz |
≤ 3 |
1kHz (choose) |
Sideband Suppression Ratio |
dB |
Near 50 |
|
Wavelength instability |
MHz |
≤±25 |
|
Working Mode |
– |
CW |
Continuous Laser |
Output Power |
mW |
50 |
Fixed (Default) / |
Polarization state |
– |
Random/Linear Polarization |
|
Short-term Stability (15 minutes) |
dB |
≤ ±0.02 |
Equivalent≤±0.5% |
Long-term Stability (8 hours) |
dB |
≤ ±0.05 |
Equivalent≤±1.2% |
Pigtail Fiber Type |
— |
SMF-28 SM Fiber |
|
Fiber Interface Type |
— |
FC/APC |
|
Electrical and environmental parameters |
Module Type |
Control method |
RS232 Serial communication |
Communication interface |
DB9 Female |
Power supply |
5V DC, <15W |
Size |
125(W)×150(D)×31.5(H)mm |
Operating temperature range |
-5~+35°C |
Operating humidity range |
0~70% |
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