Laser Quantum torus 660


The torus 660nm laser provides true single longitudinal mode (SLM) with a coherence length in excess of 100m and a bandwidth of <1MHz. Using active mode locking technology to stabilise the laser cavity the wavelength stability is measured to be <2pm over 20°C ambient temperature shift and mode hop is eliminated. The torus 660 is ideal for applications such as interferometry, Raman studies and holography.  



  • Compact design
  • Stable output
  • 2 years unlimited hours warranty
  • SLM (Single longitudinal mode)
  • Hermetically sealed
  • Diode > 40,000 hours MTTF
  • Narrow linewidth
  • Long coherence length


Power 50mW - 200mW
Wavelength 660nm
Beam Diameter 1.7mm +/-0.2mm
Spatial Mode TEM00
Bandwidth <1MHz
Divergence <0.4mrad
M Squared <1.1
Power Stability <1.0% rms
Noise <0.5% rms
Noise Bandwidth 1Hz - 100MHz
Pointing Stability <5µrad/°C
Polarisation Ratio >100:1
Polarisation Direction Vertical
Coherence Length >100m
Beam Angle <1mrad
Operating Temp 15 - 35°C
Weight 1.2kg
Umbilical Length 1.5m
Warmup Time <30mins



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