Low Noise Laser Macro Line Generator LNC-13LNM+91CR

Laser line for extended depth of focus

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 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 0°–17° (depending on working distance)
  • Intensity profile homogeneous in line direction, Gaussian in perpendicular
  • Line width constant (see [X1] ) with values acc. to Table1.1 / 2.1 along 60% of the central area, outside this area the line width differs up to 30%
  • Line width starting at 14 μm (1/e²)
  • Integrated focussing mechanism
  • Laser power output up to 18 mW
  • Laser wavelengths 405 to 980 nm
  • Integrated power control, adjustable from <1%–100%
  • External modulation: TTL up to 100 kHz and analog up to 100 kHz
  • Supply voltage: 5V DC


Laser Macro Line Generator LNC-13LNM+91CR
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