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Fiber Coupled Semiconductor Laser

Products

1550nm Ultra-Narrow Linewidth CW Fiber Laser

DK Photonics 1550nm Ultra-Narrow Linewidth CW Fiber Laser adopts rare earth-doped fiber DFB laser cavity structure, output wavelength 1550nm single longitudinal mode laser, spectral linewidth is less than 3kHz, output spectral side mode suppression ratio exceeds 60dB, can provide module or desktop package, it is distributed Ideal laser source for applications such as sensing.

Features

  • Spectral Line-width≤ 3KHz
  • All-fiber DFB resonator structure
  • Stable wavelength without mode hopping

Applications

  • Laser Seed Source
  • Acoustic Sensor, Hydrophone
  • Fiber Distributed Sensing
  • Coherent Light Communication

Performance Specifications

Optical Parameter Unit Typical Values Remark
Wavelength tuning range nm 1550±0.1 1540~1570nm customized
Wavelength adjustment range nm ±0.1 Slow temperature tuning
Wavelength instability MHz ≤±25
Spectral linewidth kHz ≤3 *3dB laser linewidth=20dB beat linewidth/20
Working mode – CW, single frequency single longitudinal mode
Side mode suppression ratio dB ≥60
Output power mW 50/100/200/500/1000 Default fixed output, optional adjustable power
Short-term Stability (15 Minutes) dB ≤ ±0.02
Long-term Stability (8 Hours) dB ≤ ±0.05
Polarization State – Random linear polarization
PER dB – ≥23
Fiber Type – SMF-28e PM1550 Panda
Optical Connector – FC/APC FC/APC, slow axis aligned to ke

 

Electrical and environmental parameters Desktop Module
Control Mode Button / RS232 RS232
signal interface DB9 female DB9 female
Power Supply 100~240V AC, <30W 12V DC, 24W
Optical power(mW) 50/100/200 500/1000/2000 50/100/200 500/1000/2000
Dimensions(mm) 255(W)×285(D)×115(H 255(W)×322(D)×115(H) 125(W)×150(D)×21.5(H)

Or 125(W)×150(D)×31.5(H)(with fans）

 139(W)×235(D)×70(H)mm
Operation Temperature Range -5~+35°C
Operation Humidity Range 0~70%

Package Dimension

Ordering Information

P/N: ①-②-③-④-⑤-⑥

When you inquire, please provide the correct P/N number according to our ordering information, and attach the appropriate description would be better.
① ② ③ ④ ⑤ ⑥
NLFL Wavelength Output power (mW) Fiber Type Package Type *Adjustable power
  1550:1550nm 50/100/200/500/1000/2000 SM: SMF-28e

PM: PM1550 panda

 M: Module

B: Desktop

 *T(optional)

Ordering Information for Custom Parts:

If you need to customize other specifications, please provide detailed description for your requirement.