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Laser Rod Test Station

Laser Rod Test Station
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Laser Rod Test Station Centration and Wavefront Measurement of Laser Rods The quality of laser rods is mainly influenced by the parallelism of laser rod end surfaces and the homogeneity of the material. Ideally the light beam entering the laser rod should exit without deflection or adding wavefront aberrations. The Laser Rod Test Station was developed for the quality control of laser rods. Its setup is horizontal in order to allow the precise rotation of long laser rods up to 150 mm. The system measures the position of both end surfaces of a laser rod using two autocollimation measurement heads, like they are used with OptiCentric ® . Furthermore it measures the transmitted wavefront of the laser rod with a WaveSensor®, a Shack-Hartmann sensor. If the two end surfaces of the laser rod are not parallel and perpendicular to the cylinder axis, the traversing laser beam will be deflected. Similarly, defects in the material contribute to the beam deflection and wavefront aberrations.

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Autocolllimation measurement head measuring the laser rod The main parameters to be checked are: • The parallelism of the laser rod end surfaces • The beam deviation through the laser rod • The position of optical end surfaces of the laser rod with respect to the cylinder axis • Transmitted wavefront Wavefront sensor measuring the laser rod The system works with OptiCentric® software, a special software module controls the centration measurement of the laser rods and provides specific data sets and measurement certificates. The wavefront measurement is controlled by the software for...

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Laser Rod Test Station 2Pages

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Laser Rod Test Station
2Pages