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GA-1550-DG Single-Frequency Mode Fiber Laser

The GA-1550-DG is a high-power, single-frequency, all-polarization-maintaining fiber laser operating at 1550 nm, designed for low-noise, high-stability CW operation. It combines a seed laser with an amplifier, delivering precise, single longitudinal mode output for applications requiring high coherence, narrow linewidth, and excellent beam quality.

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Features
  • Single-frequency CW operation at 1550 nm
  • Output power: 10 mW–10 W (configuration dependent)
  • Narrow spectral linewidth: <10 kHz (typical)
  • Transverse mode: TEM₀₀, M² < 1.2
  • High power stability: <1–2% RMS over 4 hours
  • Polarization ratio: Random / >15 dB
  • All-fiber compact design for low maintenance and long lifetime
  • Fast warm-up: <15 minutes
  • Beam delivery via FC/APC connector
  • Optional RS-232/485 interface for control and monitoring
Applications
  • Optical communication systems
  • LiDAR and remote sensing
  • High-resolution spectroscopy
  • Interferometry and holography
  • Scientific research and laboratory experiments
  • Metrology and precision measurement
Specifications
Parameter Specification
Wavelength (nm) 1550 ±1
Operating Mode CW
Output Power (mW) 10–500, 10–1000, 1000–5000, 10000
Power Stability (rms, 4 h) <1%, <2%
Transverse Mode TEM₀₀
Longitudinal Mode Single
Spectral Linewidth (kHz) <100, <2000, <10 (depending on power)
M² Factor <1.2
Beam Delivery Optics FC/APC
Polarization Ratio (dB) Random / >15, Random, Random / >15
Warm-up Time (min) <15
Beam Height from Base Plate (mm) 71–75
Operating Temperature (℃) 15–35
Power Supply DC 12V / AC 220V
Expected Lifetime (h) 10,000
Warranty 1 year
Options RS-232/485 interface