Laser Modules Series LNC-13LNM

Low Noise Laser Macro Line Generator with a fan angle

Laser Diode Beam Source series 13LNM
LNC_13LNM+91CM

Features

Low noise laser line with a fan angle, approx. uniform intensity distribution, and extended depth of focus.
  • Depth of focus 7 to 35 times larger than for corresponding Micro Focus Generator
  • Line widths starting at 14 µm
  • Wavelengths 635 - 940 nm
  • Laser powers up to 18 mW
  • Low noise Laser Module (0.1 % RMS,@<1 MHz)

  • Macro Line Generator for extended depth of focus
  • Low noise laser module (0.1 % RMS, @<1 MHz)

Description

The laser diode beam sources series LNC-13LNM have a fan angle between 0° and 16.8°, approx. uniform intensity distribution along the laser line and extended depth of focus. More precisely, it is Gaussian clipped by an aperture with an edge intensity of typ. 80 % or higher. Across the laser line the intensity distribution is approx. Gaussian. The line width is constant along 60 % of the central area, outside this area the line width differs up to 30 %.

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.

For this laser type the working distance is fixed. A fine-adjustment of the distance between laser and target is recommended for fine-focusing in order to achieve minimal line width.