Thermally Induced Beam Distortions in Sesquioxide Laser Ceramics of m3 Crystal Class—Part II

Author

Vyatkin, A.G. ; Khazanov, E.A.

Author_Institution

Inst. of Appl. Phys., Nizhny Novgorod, Russia

Volume

51

Issue

2

fYear

2015

fDate

Feb. 2015

Firstpage

1

Lastpage

8

Abstract

In the first part of this paper, thermally induced polarization and phase distortions of a laser beam in cubic ceramics were calculated considering the specific features of photoelastic properties of 23 and m3 crystal classes. Here we use these quantities to calculate Strehl ratio and the integral of overlapping of the input and output beams both on passing one ceramic element as well as at the output of the scheme with the compensation of birefringence. The depolarization degree and the overlap integral are then compared with the distortions calculated earlier using the Rayleigh-Debye scattering theory method. The relative value of the distortion components inherent to 23 and m3 ceramics is assessed.

Keywords

Rayleigh scattering; birefringence; laser beams; photoelasticity; solid lasers; thermo-optical effects; 23 ceramics; Rayleigh-Debye scattering theory method; Strehl ratio; birefringence compensation; ceramic element; cubic ceramics; depolarization degree; distortion components; input beams; laser beam; m3 ceramics; m3 crystal classes; output beams; overlap integral; phase distortions; photoelastic properties; scheme output; sesquioxide laser ceramics; thermally induced beam distortions; thermally induced polarization; Approximation methods; Ceramics; Crystals; Laser beams; Phase distortion; Scattering; Tensile stress; Beam quality parameters; birefringence; ceramics; photoelastic effect; solid lasers; thermooptics;

fLanguage

English

Journal_Title

Quantum Electronics, IEEE Journal of

Publisher

ieee

ISSN

0018-9197

Type

jour

DOI

10.1109/JQE.2014.2379215

Filename

6981915