Measurements and modeling of optical distortions relaxation in high power Nd:glass lasers

Author

Zavalova, V.E. ; Kudryashov, A.V. ; Rukosuev, A.L.

Author_Institution

Adaptive Opt. NightN Ltd., Moscow, Russia

fYear

2010

fDate

10-14 Sept. 2010

Firstpage

231

Lastpage

232

Abstract

Evolution of wavefront aberrations in high-power solid-state laser (Nd:glass laser) was measured and analyzed. The measurements were performed by Shack-Hartmann wavefront (SHW) sensor. The technical opportunities of such type sensors both device for measurements and element of Adaptive Optical Systems to correct for wavefront aberrations are demonstrated in this report. Analysis of damping distortions shows that its damping has thermal nature and can be described well by non-stationary equation of diffusion at pumping and cooling of Nd:glass-slab. Theoretical estimations of aberrations dynamics is in good agreement with the experimental data.

Keywords

aberrations; adaptive optics; damping; laser beams; laser cooling; laser variables measurement; optical distortion; optical glass; optical pumping; solid lasers; thermal diffusion; wavefront sensors; Nd:glass lasers; Shack-Hartmann wavefront sensor; SiO₂:Nd; adaptive optical system; diffusion; high-power solid-state laser; nonstationary equation; optical cooling; optical distortion relaxation; optical pumping; thermal damping; wavefront aberrations;

fLanguage

English

Publisher

ieee

Conference_Titel

Advanced Optoelectronics and Lasers (CAOL), 2010 International Conference on

Conference_Location

Sevastopol

Print_ISBN

978-1-4244-7043-3

Type

conf

DOI

10.1109/CAOL.2010.5634201

Filename

5634201