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Proceedings Paper

Thermal effects of diode-end-pumped Nd:YVO4 solid state laser
Author(s): Anand Krishna Asundi; Xiaoyuan Peng; Yihong Chen; Zhengjun Xiong; Gnian Cher Lim; HongYu Zheng
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Paper Abstract

Thermal effects of diode end-pumped Nd:YVO4 laser are analyzed in this paper. A laser interferometer is set up to determine the optical path difference resulting from thermal effects in crystal under lasing condition. The beam distortions in Nd:YVO4 rod are measured with a He-Ne laser at wavelength of 632.8nm. The changes of interference patterns record the deformation of the rod with increasing pump power. The experimental and theoretical curves of effective thermal focal lengths versus pump power are obtained, and it is found that the theoretical analysis agrees well with experimental measurement. With the analytic results of thermal effects, an optimized resonator is designed to insure that the laser operates in stable mode with an output power of 3.2W, slope efficiency of 52 percent and M2 factor of 1.19.

Paper Details

Date Published: 4 November 1999
PDF: 8 pages
Proc. SPIE 3898, Photonic Systems and Applications in Defense and Manufacturing, (4 November 1999); doi: 10.1117/12.368474
Show Author Affiliations
Anand Krishna Asundi, Nanyang Technological Univ. (Singapore)
Xiaoyuan Peng, Nanyang Technological Univ. (United States)
Yihong Chen, Gintic Institute of Manufacturing Technology (Singapore)
Zhengjun Xiong, Gintic Institute of Manufacturing Technology (Singapore)
Gnian Cher Lim, Gintic Institute of Manufacturing Technology (Singapore)
HongYu Zheng, Gintic Institute of Manufacturing Technology (Singapore)

Published in SPIE Proceedings Vol. 3898:
Photonic Systems and Applications in Defense and Manufacturing
Yee Loy Lam; Koji Ikuta; Metin S. Mangir, Editor(s)

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