GA-631-DG

The GA-631-DG Single Frequency Mode Fiber Laser is a high-power continuous-wave (CW) laser source operating at 631 nm, engineered for applications that demand single-frequency emission, ultra-low noise, and exceptional beam quality.
Based on a polarization-maintaining fiber architecture, the system combines a narrow-linewidth seed laser with a low-noise fiber amplifier to deliver stable, high-power optical output.

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Features
  • Single-frequency CW operation at 631 nm
  • High output power up to 1 W
  • Single longitudinal mode emission
  • Ultra-narrow spectral linewidth (<20 kHz)
  • All polarization-maintaining fiber design
  • Excellent beam quality (TEM₀₀, M² < 1.1)
  • Low frequency drift (<500 MHz over 4 hours)
  • High power stability (<1% rms)
  • Designed for continuous long-term operation
  • OEM-ready and laboratory compatible
Applications
  • Optical lattices
  • Optical tweezers and particle manipulation
  • Quantum optics and atomic physics
  • Precision spectroscopy
  • Scientific and academic research
  • Optical instrumentation
  • OEM laser system integration
Specifications
Parameter Specification
Wavelength 631 ± 1 nm
Operating Mode CW (Continuous Wave)
Output Power 1000 mW
Power Stability (rms, 4 h) <1%
Transverse Mode TEM₀₀
Longitudinal Mode Single
Spectral Linewidth <20 kHz / <100 kHz
Frequency Drift <500 MHz (over 4 hours)
Beam Quality (M²) <1.1
Polarization Ratio >15 dB
Warm-up Time <30 minutes
Operating Temperature 15–30 °C
Power Supply AC 220 V
Expected Lifetime 10,000 hours
Warranty 1 year