Modeling for Spatial Overlap Effect of End-Pumped Passively Q-Switched Nd:YVO4/Cr4+:YAG Laser and Its Experimental Verification

Yueh Chi Tu, Min Xiang Hsieh, Hsing Chih Liang, Yan Ting Yu*

*此作品的通信作者

研究成果: Article同行評審

1 引文 斯高帕斯(Scopus)

摘要

In this work, the spatial effects of the pumping and lasing were considered into the coupled rate equations of passively Q-switched lasers for the condition of no saturation in the gain medium. A transcendental equation of energy utilization was derived, and the solution to the equation was approximated by an analytic model developed in previous work. The reflection factor of output coupler with low reflectivity was modified for more accurate output energy evaluations. Experimentally, an end-pumped Nd:YVO4/Cr4+:YAG laser in a concave-plano cavity with output coupling reflectivity ranging from 10% to 92% was demonstrated, and two different pumping spot sizes of laser diode were adopted for validating the developed spatial model. The experimental results showed good agreements with the theoretical calculations.

原文English
文章編號1338
期刊Applied Sciences (Switzerland)
12
發行號3
DOIs
出版狀態Published - 1 2月 2022

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