Share Email Print
cover

Proceedings Paper

Thermally-induced lens in an end-pumped cesium laser
Author(s): Wei Zhang; You Wang; Juhong Han; Ming Gao; Zhigang Jiang; He Cai; Liangping Xue; Guofei An; Hongyuan Wang; Jie Zhou
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

Diode-pumped alkali lasers (DPALs) have attracted a lot of attentions in the recent years for their high Stocks efficiency, good beam quality, compact size and near-infrared emission wavelengths. In this study, we analyze the thermally-induced lens in an end-pumped cesium cell by using the evaluated parameters such as the population density distribution, the transition rates of pump photon absorption, and the transition rates of laser photon emission, which had been obtained in our previous study. After dividing a cylindrical vapor cell into many cylindrical annuli, we calculate the refractive index n and the thermal-optic coefficient dn/dT in every annule. And then, we carry out the ray-trace to describe the propagation of an incident ray inside the vapor cell. Assuming that the incident plane-wave has a flat-top distribution, the intensity distribution of the outputted beam can be deduced. We adopted the second-moment calculation to evaluate the beam size after the ray passes through a pumped cell. Finally, the effective focal length of a thermally-induced lens was obtained for the end-pumped laser configuration. The research will be helpful to improve the beam quality of a DPAL.

Paper Details

Date Published: 15 October 2015
PDF: 9 pages
Proc. SPIE 9671, AOPC 2015: Advances in Laser Technology and Applications, 967117 (15 October 2015); doi: 10.1117/12.2199810
Show Author Affiliations
Wei Zhang, Southwest Institute of Technical Physics (China)
You Wang, Southwest Institute of Technical Physics (China)
Juhong Han, Southwest Institute of Technical Physics (China)
Ming Gao, Southwest Institute of Technical Physics (China)
Zhigang Jiang, Southwest Institute of Technical Physics (China)
He Cai, Southwest Institute of Technical Physics (China)
Liangping Xue, Southwest Institute of Technical Physics (China)
Guofei An, Southwest Institute of Technical Physics (China)
Hongyuan Wang, Southwest Institute of Technical Physics (China)
Jie Zhou, Southwest Institute of Technical Physics (China)


Published in SPIE Proceedings Vol. 9671:
AOPC 2015: Advances in Laser Technology and Applications
Shibin Jiang; Lijun Wang; Chun Tang; Yong Cheng, Editor(s)

© SPIE. Terms of Use
Back to Top