Thermal Effects of High-Power Side-Pumped Alkali Vapor Lasers and the Compensation Method

Author

Jing Yang ; Binglin Shen ; Aiqing Qian ; Jian Jiao ; Bailiang Pan

Author_Institution

Dept. of Phys., Zhejiang Univ., Hangzhou, China

Volume

50

Issue

12

fYear

2014

fDate

Dec. 2014

Firstpage

1029

Lastpage

1034

Abstract

A side-pumping configuration with six laser diode arrays is designed for the diode pumped alkali vapor lasers. A physical model is established to describe the thermal effects in a high-power side-pumped cesium vapor laser. Distributions of the radial temperature and the optical path difference in the cesium vapor cell are simulated and analyzed. Influences of the pump power, the pump beam waist, and the cell temperature on the thermal focal length are calculated and discussed. We propose a very simple and promising design of a scheme to compensate for the thermal lens of the cesium vapor laser. The compensation results are also presented.

Keywords

caesium; compensation; gas lasers; laser beams; optical pumping; semiconductor laser arrays; thermal lensing; Cs; cesium vapor laser; compensation method; high-power side-pumped alkali vapor lasers; laser diode arrays; optical path difference; physical model; pump beam waist; pump power; radial temperature; side-pumping configuration; thermal effects; thermal focal length; thermal lens; Laser beams; Laser excitation; Laser modes; Lenses; Pump lasers; Semiconductor lasers; Thermal lensing; High power laser; side pumped cesium vapor laser; thermal compensation; thermal effects;

fLanguage

English

Journal_Title

Quantum Electronics, IEEE Journal of

Publisher

ieee

ISSN

0018-9197

Type

jour

DOI

10.1109/JQE.2014.2366037

Filename

6939660