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Proceedings Paper

Method for the CO2 laser beam wavefront control
Author(s): M. Sawczak; G. Rabczuk
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Paper Abstract

The results of experimental tests concerning the wavefront sensor designed for control of the cw CO2 laser beam transformed by the deformable multichannel bimorph mirror are presented in the paper. Wave-front curvature sensing is realised by measuring the radiation intensity distribution in the defocused beam and comparing it with the distribution recorded for a reference, undisturbed beam. The characteristics of the sensor are analysed versus the controlled deformation introduced to the tested beam by a deformable mirror. The experimental tests show that the curvature signal, measured by the designed array detector is proportional to the local distortions of the wavefront of the laser beam.

Paper Details

Date Published: 1 February 2007
PDF: 5 pages
Proc. SPIE 6599, Laser Technology VIII: Progress in Lasers, 65990M (1 February 2007); doi: 10.1117/12.726660
Show Author Affiliations
M. Sawczak, The Szewalski Institute of Fluid-Flow Machinery (Poland)
G. Rabczuk, The Szewalski Institute of Fluid-Flow Machinery (Poland)

Published in SPIE Proceedings Vol. 6599:
Laser Technology VIII: Progress in Lasers
Wieslaw Wolinski; Zdzislaw Jankiewicz; Ryszard S. Romaniuk, Editor(s)

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