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Proceedings Paper

Adaptive system for laser beam formation
Author(s): Alexander Alexandrov; Alexey L. Rukosuev; Valentina Ye. Zavalova; Pavel Romanov; Vadim V. Samarkin; Alexis V. Kudryashov
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Paper Abstract

This paper discusses the novel adaptive optical closed loop system with bimorph mirror as a wavefront corrector and Shack-Hartmann wavefront sensor to compensate for the aberrations of the laser beam occurred during the distribution of the beam from laser to processed material. Adaptive system can correct for the low-order aberrations in the real-time - the frequency of corrected aberrations is less then 25 (30) Hz. The amplitude of such aberrations - about 7 microns. These parameters are mostly determined by utilized Shack-Hartmann wavefront sensor. Number of corrected aberrations - up to 15th Zernike polynomial (excluding tip-tilt).

Paper Details

Date Published: 24 October 2002
PDF: 8 pages
Proc. SPIE 4770, Laser Beam Shaping III, (24 October 2002); doi: 10.1117/12.459102
Show Author Affiliations
Alexander Alexandrov, Institute on Laser and Information Technologies (Russia)
Alexey L. Rukosuev, Institute on Laser and Information Technologies (Russia)
Valentina Ye. Zavalova, Institute on Laser and Information Technologies (Russia)
Pavel Romanov, Institute on Laser and Information Technologies (Russia)
Vadim V. Samarkin, Institute on Laser and Information Technologies (Russia)
Alexis V. Kudryashov, Institute on Laser and Information Technologies (Russia)


Published in SPIE Proceedings Vol. 4770:
Laser Beam Shaping III
Fred M. Dickey; Scott C. Holswade; David L. Shealy, Editor(s)

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