1550nm single-band narrow linewidth semiconductor laser
Single-band narrow linewidth fiber laser uses ultra-narrow linewidth outer cavity semiconductor laser chip, output a single longitudinal mode laser with a wavelength of 1550nm, spectral linewidth less than 100kHz, single-mode or polarization-maintaining fiber coupled output, and provides module or desktop package, which is a cost-effective laser source that can be used for distributed sensing.
characteristic
Spectral linewidth ≤100KHz
DFB resonator
The wavelength is stable and there is no mode hopping
apply
Lidar
Acoustic sensing, hydrophones
Fiber Optic Distributed Sensing
parameter
Center Wavelength ：1550nm±1
Spectral linewidth @3dB: ≤100kHz (*3dB linewidth = 20dB linewidth/20)
Edge mold rejection ratio: ≥50dB
Wavelength instability: ≤±100MHz (@8h)
Working mode: CW
Output power: 30mW
Short-term stability (15 mins): ≤ ±0.02dB (equivalent≤±0.5%)
Long-term stability (8 hours): ≤ ±0.05dB (equivalent ≤±1.2%)
Output laser polarization state: random/linear polarization
Pigtail type and connector: SMF-28/PM1550
Pigtail joint type: FC/APC
Control mode: RS232 serial communication
Communication interface: DB9 Female
Trigger mode: TTL, internal/external trigger (optional)
Electricity Desktop： 100~240V AC, <30W
Electricity module：5V 3A DC, <315W
Desktop Size：260(W)×280(D)×120(H)mm
module Size：70(W)×90(D)×15(H)mm
Operating temperature：5 ~ 35°C
Operating humidity：0~70%
