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Proceedings Paper

Gaussian output coupler and resonator geometry of confocal unstable resonator
Author(s): Jinxiong Wang; Zongying Mu; Pinglei Zhang
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Paper Abstract

In this paper, we present a simple and easy-use geometrical approach for designing the unstable resonator of Nd:YAG laser with a Gaussian output coupler. An equivalent rear mirror, which formed a confocal resonator with the output coupler, was introduced to include the effects of rear mirror, the thermal focus of YAG rod and optical path of Q- switch. Numerical results were calculated for various couples of matching curvatures of rear mirror and output coupler under the confocal condition. The correspondent optimal spot sizes of the output coupler were also given. Couples of mirrors were selected according to theoretical parameters and applied to the experimental setup. A high- beam-quality output with Gaussian profile, and high efficiency of second harmonic generation were obtained. The experimental results were in good agreement with theoretical prediction.

Paper Details

Date Published: 30 September 1996
PDF: 5 pages
Proc. SPIE 2889, High-Power Lasers: Solid State, Gas, Excimer, and Other Advanced Lasers, (30 September 1996); doi: 10.1117/12.253260
Show Author Affiliations
Jinxiong Wang, State Key Lab. of Molecular Reaction Dynamics (China)
Zongying Mu, State Key Lab. of Molecular Reaction Dynamics (China)
Pinglei Zhang, North China Research Institute of Electro-Optics (China)


Published in SPIE Proceedings Vol. 2889:
High-Power Lasers: Solid State, Gas, Excimer, and Other Advanced Lasers
Sui-Sheng Mei; Keith A. Truesdell, Editor(s)

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