Abstract

This paper presents an adaptive optical system intended for focusing the radiation of powerful processing lasers. The system consists of a wave-front corrector, a wave-front meter, and a software-hardware system for controlling the corrector. A flexible bimorph mirror is used as a corrector. An M<sup>2</sup> sensor is used to analyze the radiation-focusing quality, making it possible to estimate such parameters of the laser radiation as the diameter, the divergence angle, and the quality parameter M<sup>2</sup>. The bimorph mirror is controlled by means of a combined method, based on gradient methods of searching for the extremum and a genetic algorithm. The system makes it possible to correct low-order aberrations and to estimate the focusing efficiency of the laser radiation.

© 2007 Optical Society of America

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  1. H. Baumhacker, G. Pretzeler, K. J. Witte, M. Hegelich, M. Kaluza, S. Karsch, A. Kudryashov, V. Samarkin, and A. Rukosuev, "Correction of wavefront distortions and fluence profile modulation by closed-loop adaptive optics in a multi-stage TiS laser, "Opt. Lett. 27, 1570 (2002).
  2. B. Wattellier, J. Fuchs, J. P. Zou, J. C. Chanteloup, H. Bandulet, P. Michel, C. Labaune, S. Depierreux, A. Kudryashov, and A. Aleksandrov, "Single laser hot spot generation for laser-plasma interaction physics using a dielectric-coated bimorph deformable mirror, "J. Opt. Soc. Am. B 20, No. 8 (2003).
  3. J. V. Seldakova, T. Yu. Cherezova, and A. Kudryashov, "Low-cost M2 sensor for the adaptive optical system, "Proc. SPIE 4493, 285 (2002).
  4. Yu. V. Seldakova, T. Yu. Cherezova, and A. V. Kudryashov, "Analysis of the laser intensity distribution," Proc. SPIE 4900, 367 (2002).
  5. Document ISO/DIS 11146, International Organization for Standardization (1996).
  6. K. Roundy, "Propagation factor quantifies laser beam performance, "Laser Focus World 12, 119 (1999).
  7. M. A. Vorontsov, A. V. Koryabin, and V. I. Shmal'gauzen, Controllable Optical Systems (Nauka, Moscow, 1988).
  8. M. A. Vorontsov and V. I. Shmal'gauzen, Principles of Adaptive Optics (Nauka, Moscow, 1985).
  9. F. P. Vasil'ev, Numerical Methods of Solving Extremal Problems (Nauka, Moscow, 1980).

2002 (3)

H. Baumhacker, G. Pretzeler, K. J. Witte, M. Hegelich, M. Kaluza, S. Karsch, A. Kudryashov, V. Samarkin, and A. Rukosuev, "Correction of wavefront distortions and fluence profile modulation by closed-loop adaptive optics in a multi-stage TiS laser, "Opt. Lett. 27, 1570 (2002).

J. V. Seldakova, T. Yu. Cherezova, and A. Kudryashov, "Low-cost M2 sensor for the adaptive optical system, "Proc. SPIE 4493, 285 (2002).

Yu. V. Seldakova, T. Yu. Cherezova, and A. V. Kudryashov, "Analysis of the laser intensity distribution," Proc. SPIE 4900, 367 (2002).

1999 (1)

K. Roundy, "Propagation factor quantifies laser beam performance, "Laser Focus World 12, 119 (1999).

Laser Focus World (1)

K. Roundy, "Propagation factor quantifies laser beam performance, "Laser Focus World 12, 119 (1999).

Opt. Lett. (1)

Proc. SPIE (2)

J. V. Seldakova, T. Yu. Cherezova, and A. Kudryashov, "Low-cost M2 sensor for the adaptive optical system, "Proc. SPIE 4493, 285 (2002).

Yu. V. Seldakova, T. Yu. Cherezova, and A. V. Kudryashov, "Analysis of the laser intensity distribution," Proc. SPIE 4900, 367 (2002).

Other (5)

Document ISO/DIS 11146, International Organization for Standardization (1996).

B. Wattellier, J. Fuchs, J. P. Zou, J. C. Chanteloup, H. Bandulet, P. Michel, C. Labaune, S. Depierreux, A. Kudryashov, and A. Aleksandrov, "Single laser hot spot generation for laser-plasma interaction physics using a dielectric-coated bimorph deformable mirror, "J. Opt. Soc. Am. B 20, No. 8 (2003).

M. A. Vorontsov, A. V. Koryabin, and V. I. Shmal'gauzen, Controllable Optical Systems (Nauka, Moscow, 1988).

M. A. Vorontsov and V. I. Shmal'gauzen, Principles of Adaptive Optics (Nauka, Moscow, 1985).

F. P. Vasil'ev, Numerical Methods of Solving Extremal Problems (Nauka, Moscow, 1980).

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