Ultra-Narrow Linewidth Fiber Laser
The single frequency narrow linewidth fiber laser adopts the rare-earth doped fiber DFB laser cavity structure, with a single longitudinal mode laser output wavelength of 1550nm, a spectral linewidth of less than 3kHz, and an output spectral side mode suppression ratio of more than 60dB. It can provide module or desktop packaging, and is an ideal laser source for distributed sensing applications.
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Features: |
Application： |
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² Spectral linewidth ≤ 3KHz |
² Lidar |
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² All fiber DFB resonator |
² Acoustic sensor and hydrophone |
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² Wavelength stability without mode hopping |
² Optical fiber distributed sensing |
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Optical index |
Unit |
Typical value |
Notes |
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Operating wavelength |
nm |
1550±0.5 |
1545~1560nm Customizable |
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Spectral linewidth |
kHz |
≤3 |
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Sideband rejection ratio |
dB |
≥50 |
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Wavelength instability |
MHz |
≤±25 |
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output power |
mW |
50/100 |
Constant non adjustable |
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Short term stability (15 min) |
dB |
≤ ±0.02 |
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Long term stability (8 hours) |
dB |
≤ ±0.05 |
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Pigtail type |
- |
SMF-28e or PM1550 |
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Pigtail joint type |
- |
FC/APC |
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Electrical and environmental parameters |
table model |
module |
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control mode |
Button |
RS232 Serial communication |
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communication interface |
* Optional |
DB9 Female |
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Power supply |
100~240V AC, <30W |
5V DC, <15W |
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Size |
260(W)×280(D)×120(H)mm |
125(W)×150(D)×30(H)mm |
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Operating temperature range |
-5~+55°C |
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Operating humidity range |
0~70% |
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Order information/Model |
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NLFL |
Operating wavelength (nm) |
output power (mW) |
Output pigtail type |
Package Type |
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1550 |
50/100 |
SM=SMF-28e PM=PM1550 |
M=module B=table model |
