Research on Super-Gaussian Theory of the Thermal Effect in a Side-Pumped Nd:YVO4 Laser Crystal

Author

Ling, Yawen ; Chen, Wen

Author_Institution

Sch. of Sci., Xi´´an Univ. of Archit. & Technol., Xi´´an, China

fYear

2009

fDate

14-16 Aug. 2009

Firstpage

1

Lastpage

4

Abstract

Temperature field and thermal distortion field in a Nd:YVO₄ crystal side-pumped by LD of Gaussian distribution are obtained by semi-analytical method, and the maximum temperature rise is 123degC; the maximum thermal distortion is 4.9 mum. Comparison between the results under different order of Super-Gaussian distribution shows that the maximum temperature rise and the thermal distortion both decrease with the increase of the order. When k=15, the maximum temperature rise and the maximum thermal distortion decrease by 22.0% and 18.4%, respectively. Method in this paper can be applied to the research on thermal problems of other side-pumped crystal with rectangular section, and offer theoretical basis for effectively solve the thermal problems in such laser systems.

Keywords

Gaussian distribution; neodymium; optical pumping; solid lasers; thermo-optical effects; yttrium compounds; Super-Gaussian distribution; YVO₄:Nd; laser diode pumping; semi-analytical method; side-pumped crystal; temperature 123 degC; thermal distortion field; thermal effect; Gaussian distribution; Laser excitation; Laser noise; Laser theory; Lenses; Power lasers; Pump lasers; Solid lasers; Temperature distribution; Thermal lensing;

fLanguage

English

Publisher

ieee

Conference_Titel

Photonics and Optoelectronics, 2009. SOPO 2009. Symposium on

Conference_Location

Wuhan

Print_ISBN

978-1-4244-4412-0

Type

conf

DOI

10.1109/SOPO.2009.5230317

Filename

5230317