Less 3kHz Ultra-narrow Line-width 1550nm DFB Fiber Laser CW 30mw~50mw SM PM Fiber
The single-frequency narrow linewidth fiber laser adopts the rare-earth-doped fiber DFB laser cavity structure, and the output wavelength is 1550nm single longitudinal mode laser, the spectral linewidth is less than 3kHz, and the output spectral side mode suppression ratio exceeds 60dB. Module or desktop packaging is available. It is an ideal laser source for distributed sensing and other applications.
[Features]
Spectral linewidth ≤ 3KHz.
All-fiber DFB resonator.
Wavelength stability without mode hopping.
[Applications]
Laser radar
Acoustic sensor, hydrophone
Fiber optic distributed sensing
[Specification]
| Parameter |
Unit |
Typical Value |
Remarks |
| Wavelength |
nm |
1550±0.5nm |
1545~1560nm customizable |
| Spectral Linewidth |
kHz |
<3 |
|
| Sideband Suppression Ratio |
dB |
>50 |
|
| Wavelength Instability |
MHz |
≤±25 |
|
| Output Power |
mW |
30/50 |
Choose |
| Short-term Stability (15 minutes) |
dB |
≤ ±0.02 |
|
| Long-term Stability (8 hours) |
dB |
≤ ±0.05 |
|
| Pigtail Type |
|
SMF-28e / PM1550 |
Choose |
| Pigtail Connector 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)×30(H)mm
|
|
Operating Temperature Range
|
-5~+55°C
|
|
Operating Humidity Range
|
0~70%
|
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