The laser diode beam sources series LNC-13M/LNC-13MM produce an elliptical laser spot.
The laser diode beam source series LNC-13M produces an elliptical laser spot with elliptical Gaussian intensity distribution. The laser diode beam source series LNC-13MM produces an often circular (sometimes slightly elliptical) laser spot with extended depth of focus. The beam profile is approx. Gaussian. More precisely it has an elliptical intensity distribution clipped by a circular aperture.
Micro and Macro lasers
The lasers of series LNC-13M are Laser Micro Focus Generators designed to produce spots with small spot size. They have a small depth of focus (in this case the depth of focus is the Rayleigh range). Laser Macro Focus Generators like the corresponding lasers of series LNC-13MM have common basic optical features but are designed to generate laser spots with an extended depth of focus.
The lasers are low noise (typ. < 0.15 % of Po* (RMS, Bandwidth < 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 spots. (* Po is the maximum specified output power.)
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.
Adjusting the working distance
For lasers of series LNC-13M/LNC-13MM the working distance can be adjusted by adjusting the focus setting. Please note that the spot diameter increases proportionally to the working distance. A fine-adjustment of the distance between laser and target is recommended for fine-focusing in order to achieve minimal spot size.
The laser series LNC-13M/LNC-13MM is also available as a standard version 13M (Micro), 13MM (Macro). Please note that these differ in electronics type, but are also available with RS232 interface.
These high quality lasers can e.g. be used for machine vision applications.