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GA-1120-DG Single-Frequency

The GA-1120-DG is a single-frequency, all-polarization fiber laser operating at 1120 nm, engineered for applications that demand ultra-low noise, narrow linewidth, and excellent beam quality. The system integrates a high-stability seed laser with a low-noise fiber amplifier, delivering reliable performance across a wide output power range. Typical applications include biomedical research, nonlinear frequency conversion, mid-IR laser systems, precision spectroscopy, and advanced solid-state laser development.

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Features
  • Single-frequency CW operation at 1120 nm
  • Ultra-narrow linewidth (<10 kHz)
  • Single longitudinal & TEM₀₀ transverse mode
  • High polarization extinction ratio (>15 dB)
  • Excellent beam quality (M² <1.2)
  • Low noise, high stability output
  • Wide power range from mW to 2 W
  • Optional RS-232 / RS-485 control
Applications
  • Frequency doubling (SHG)
  • Mid-infrared laser pumping
  • Solid-state laser excitation
  • Biomedical research
  • Precision spectroscopy
  • Nonlinear optics
  • Scientific and laboratory research
Specifications
Parameter Specification
Wavelength (nm) 1120 ±1
Operating Mode CW
Output Power (mW) 1–10 / 10–500 / 500–1000 / 1000–2000
Power Stability (rms, 4 h) <1%, <2%
Transverse Mode TEM₀₀
Longitudinal Mode Single
Spectral Linewidth (kHz) <10
M² Factor <1.2
Beam Delivery Optics FC/APC
Polarization Ratio (dB) >15
Warm-up Time (min) <30
Operating Temperature (℃) 15 – 30
Power Supply AC 220 V
Expected Lifetime (h) 10,000
Warranty 1 year
Options RS-232 / RS-485 interface