Laser Quantum gem 671

Laser Quantum gem532

At 671nm and 50mW - 750mW, the gem 671 is among the most powerful and compact red lasers available today. It has excellent beam characteristics and, using our innovative stress-free cavity architecture, the gem 671 is suitable for a wide range of scientific applications including fluorescence imaging and spectroscopy.  




  • Compact design
  • Diffraction limited beam
  • Permanently Aligned Cavity (PAC)
  • Low Noise
  • Low M-squared
  • Stable output
  • Hermetically sealed
  • Single phase mains driven
  • Diode > 40,000 hours MTTF
  • Zero-stress cavity
  • Full RS232C control
  • Now with APC as standard
  • Fibre delivery
  • 2 years/unlimited hours warranty




50mW - 750mW



Beam Diameter

0.75mm ± 0.15mm

Spatial Mode TEM00
Bandwidth 30GHz
Divergence <1.5mrad
M Squared <1.2
Power Stability <1.0% rms
Noise < 0.6% rms
Noise Bandwidth 0.1Hz - 10kHz
Pointing Stability <10µrad/°C
Polarisation Ratio >100:1
Polarisation Direction Horizontal
Coherence Length ~1cm
Beam Angle <1mrad
Operating Temp 15 - 40ºC
Weight 0.75kg
Umbilical Length 1.5m
Warmup Time 10 minutes
Safety Class Class IV



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