The mode-matching model of diode-end-pumped alkali vapor lasers

Yan Xu; Jijiang Xie; Fei Chen; Guilong Yang; Dianjun Li; Chunrui Wang; Kuo Zhang; Changbin Zheng; Yang He; Fei Gao

doi:10.1117/12.2065461

3 February 2015 The mode-matching model of diode-end-pumped alkali vapor lasers

Yan Xu, Jijiang Xie, Fei Chen, Guilong Yang, Dianjun Li, Chunrui Wang, Kuo Zhang, Changbin Zheng, Yang He, Fei Gao

Proceedings Volume 9255, XX International Symposium on High-Power Laser Systems and Applications 2014; 92552T (2015) https://doi.org/10.1117/12.2065461
Event: XX International Symposium on High Power Laser Systems and Applications, 2014, Chengdu, China

Abstract

Diode-pumped alkali vapor lasers are famous in the field of laser for their significant advantages such as very high quantum efficiency (Cs 99.5%, Rb 98.1%, K 95.2%), good thermal management performance and excellent beam output quality etc. A rate equation model fully considering the spatial distributions of pumping light and oscillating light is established under the hypothesis of quasi-two-level energy system of DPALs in this paper. Meanwhile, expressions of threshold pumping power, mode-matching efficiency and output power and slop efficiency in low pumping and strong pumping, respectively, are obtained. Then, the influences of mode-matching efficiency on working performance of DPALs are discussed and analyzed. Results show that mode-matching efficiency mainly impacts on threshold pumping power, output power and slop efficiency in low pumping but that nearly has no effects in strong pumping. Therefore, this model benefits the further research of DPALs.

Citation Download Citation

Yan Xu, Jijiang Xie, Fei Chen, Guilong Yang, Dianjun Li, Chunrui Wang, Kuo Zhang, Changbin Zheng, Yang He, and Fei Gao "The mode-matching model of diode-end-pumped alkali vapor lasers", Proc. SPIE 9255, XX International Symposium on High-Power Laser Systems and Applications 2014, 92552T (3 February 2015); https://doi.org/10.1117/12.2065461

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