Low Noise Laser Micro Line Generator LNC-5LM+56CR
Low Noise Laser Micro Line Generator LNC-5LP+56CR

Low noise laser line with a Gaussian beam profile

The beam-shaping optics define the beam parameter line length, the optimum working distance and the focussing range. The chosen laser module defines the wavelength and the power output and, thereby, the laser safety class.

The line lengths and line widths shown in the technical data are valid for the nominal working distance of the line optics. Any working distance changes do require refocussing within the available focussing range, with line width increasing in direct proportion with greater working distance.

The new low noise laser diode modules from Schäfter+Kirchhoff have reduced power noise, reduced coherence length and low speckle contrast as a result of internal RF-modulation. The low noise (<0.1% RMS, @<1 MHz) and the mode-hopping free laser operation makes these laser diode modules ideal for particle measurements or advanced medical and biotechnological applications. Due to the reduced coherence length, speckle contrast might be lowered. This effect, however, becomes smaller for thinner lines.

Performance Features

  • Low noise laser module (<0.1% RMS,@<1 MHz)
  • Reduced coherence
  • Mode hopping free laser operation
  • Fan angle 8°, 15°, 40°, 62°, 84°
  • Line width starting at 26 μm, line length 6.6–1800 mm, depending on working distance
  • Intensity profile [X2], Gaussian in line direction clipped by an aperture with typ. 30% edge intensity, perpendicular Gaussian with constant line width
  • Integrated focussing mechanism
  • Laser wavelengths 635–980 nm
  • Laser power output up to 113 mW
  • Output power adjustable <1–100%
  • External modulation: TTL up to 100 kHz and analog up to 100 kHz
  • Supply voltage: 5V DC


Laser Micro Line Generator LNC-5LT+56CR, dimensions
Schäfter + Kirchhoff GmbH - specialists for optical sensors and measurement technology
Kieler Str. 212, D-22525 Hamburg, Tel. +49(0)40 85 39 97-0, Fax +49(0)40 85 39 97-79