Laser Diode Collimator series LNC-91CM/LNC-91CR

Low noise collimator with large elliptical Gaussian beam profile

Laser Diode Collimator 91CM
Laser Diode Collimator LNC-91CM with tools
Laser Diode Collimator LNC-91CR
Laser Diode Collimator LNC-91CR with tools


Collimator with large elliptical Gaussian beam profile
  • Collimated beam diameters (truncated below the 13.5%-level) max. 53.2 mm
  • Wavelengths 405 - 830 nm
  • Laser powers up to 66 mW
  • Cable exit: straight (91CM) or angled (91CR)
  • Low noise laser module (0.1 % RMS, @<1 MHz)


Laser diode collimators transform the divergent light of a laser ­diode into a collimated beam, while maintaining the Gaussian ­intensity distribution and the elliptical intensity profile.

The lasers are low noise (0.1 % RMS,@<1 MHz) and operate mode-hopping free. Due to the reduced coherence length the speckle contrast is lowered. However this effect is smaller for smaller lines and spots.
The laser has integrated electronics for control of the laser output power. The output power can be controlled using the modulation input ports (TTL and analog) or manually using the potentiometer. 

The collimation can be adjusted by using an eccentric key. Please note that this affects beam parameters like collimated beam diameter and beam divergence.