Measurement of thermal focal length with M2 in solid state laser

Weiling Huang; Ying Gao; Hailin Wang; Zhouyou Zhou; Yihong Chen

doi:10.1117/12.361163

8 September 1999 Measurement of thermal focal length with M² in solid state laser

Weiling Huang, Ying Gao, Hailin Wang, Zhouyou Zhou, Yihong Chen

Proceedings Volume 3862, 1999 International Conference on Industrial Lasers; (1999) https://doi.org/10.1117/12.361163
Event: International Symposium on Industrial Lasers, 1999, Wuhan, China

Abstract

In this paper, it is described that two common methods to determine the thermal lens focal length (both assistant lens and double beams) with the analysis of their theoretical error, and proposed a new method to measure thermal lens focal length (M²) based on the relative beam propagation of Gaussian single and multi modes beam. The calculated equations of thermal lens focal length using proposed M² method were reckoned, and its effectiveness has been testified by both the theoretical analysis and the experimental research.

Citation Download Citation

Weiling Huang, Ying Gao, Hailin Wang, Zhouyou Zhou, and Yihong Chen "Measurement of thermal focal length with M² in solid state laser", Proc. SPIE 3862, 1999 International Conference on Industrial Lasers, (8 September 1999); https://doi.org/10.1117/12.361163

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