M2 meter as a part of closed-loop adaptive optical system for high-power laser beam correction

Author

Sheldakova, J. ; Cherezova, T. ; Kudryashov, A. ; Zhuravlev, V.

Author_Institution

Night N (opt) Ltd., Moscow, Russia

Volume

1

fYear

2005

fDate

12-17 Sept. 2005

Abstract

Here, we demonstrate how closed-loop adaptive optical system can be used to obtain a good focused beam. A bimorph mirror is used as a wavefront corrector. Closed-loop software analyses the focal spot that is measured by M2 meter and then calculates voltages to be applied to the mirror electrodes. This adaptive system can correct the low-order slow changing aberrations without any measurements of the wavefront. The optimal correction of the high-power beam aberrations can be found by the use of genetic and hill-climbing algorithms.

Keywords

aberrations; adaptive optics; adaptive systems; closed loop systems; genetic algorithms; laser beams; laser mirrors; optical focusing; M2 meter; aberration correction; bimorph mirror; closed-loop adaptive optical system; closed-loop software analyses; focal spot measurement; genetic algorithms; high-power laser beam correction; hill-climbing algorithms; laser focused beam; mirror electrodes; wavefront corrector; Adaptive optics; Adaptive systems; Electrodes; Genetics; Laser beams; Mirrors; Optimized production technology; Software measurement; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Advanced Optoelectronics and Lasers, 2005. Proceedings of CAOL 2005. Second International Conference on

Print_ISBN

0-7803-9130-6

Type

conf

DOI

10.1109/CAOL.2005.1553863

Filename

1553863