Closed-loop adaptive system for laser beam control

Alexis V. Kudryashov; Alexey L. Rukosuev; Alexander Alexandrov; Valentina Ye. Zavalova; Vadim V. Samarkin

doi:10.1117/12.424676

Translator Disclaimer

24 April 2001 Closed-loop adaptive system for laser beam control

Alexis V. Kudryashov, Alexey L. Rukosuev, Alexander Alexandrov, Valentina Ye. Zavalova, Vadim V. Samarkin

Author Affiliations +

Proceedings Volume 4270, Laser Resonators IV; (2001) https://doi.org/10.1117/12.424676
Event: Photonics West 2001 - LASE, 2001, San Jose, CA, United States

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).

Citation Download Citation

Alexis V. Kudryashov, Alexey L. Rukosuev, Alexander Alexandrov, Valentina Ye. Zavalova, and Vadim V. Samarkin "Closed-loop adaptive system for laser beam control", Proc. SPIE 4270, Laser Resonators IV, (24 April 2001); https://doi.org/10.1117/12.424676

ACCESS THE FULL ARTICLE