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Proceedings Paper

Closed-loop adaptive system for laser beam control
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Paper Abstract

This paper discusses the novel adaptive optical closed ioop 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 April 2001
PDF: 8 pages
Proc. SPIE 4270, Laser Resonators IV, (24 April 2001); doi: 10.1117/12.424676
Show Author Affiliations
Alexis V. Kudryashov, IPLIT/Russian Academy of Sciences (Russia)
Alexey L. Rukosuev, IPLIT/Russian Academy of Sciences (Russia)
Alexander Alexandrov, IPLIT/Russian Academy of Sciences (Russia)
Valentina Ye. Zavalova, IPLIT/Russian Academy of Sciences (Russia)
Vadim V. Samarkin, IPLIT/Russian Academy of Sciences (Russia)

Published in SPIE Proceedings Vol. 4270:
Laser Resonators IV
Alexis V. Kudryashov; Alan H. Paxton, Editor(s)

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