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Proceedings Paper

Development of a high-energy Q-switched slab laser for targeting designation
Author(s): Yu-Jen Huang; Bo-Yu Huang; Yen-Chang Lin; Tsong-Dong Wang; Po-Tse Tai
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Paper Abstract

A high-energy electro-optically Q-switched Nd:YAG laser at 1064 nm is presented, which can provide the largest output pulse energy of 196 mJ with the pulse duration of 12 ns and the repetition rate up to 30 Hz. The crossed-Porro resonator and zigzag slab gain medium are utilized to increase the misalignment tolerance of resonator up to 2 arcmin and minimize the divergence angle of laser beam to 1.7 mrad. We control the initial population inversion by intra-cavity quasi-CW lasing to limit maximum output pulse energy, and the excess pump energy is used to overcome performance degradation dependence on environmental temperature. As a result, a nearly constant output pulse energy can be obtained over a wide operating temperature range.

Paper Details

Date Published: 9 October 2018
PDF: 6 pages
Proc. SPIE 10795, Electro-Optical and Infrared Systems: Technology and Applications XV, 107950H (9 October 2018); doi: 10.1117/12.2325287
Show Author Affiliations
Yu-Jen Huang, National Chung-Shan Institute of Science and Technology (Taiwan)
Bo-Yu Huang, National Chung-Shan Institute of Science and Technology (Taiwan)
Yen-Chang Lin, National Chung-Shan Institute of Science and Technology (Taiwan)
Tsong-Dong Wang, National Chung-Shan Institute of Science and Technology (Taiwan)
Po-Tse Tai, National Chung-Shan Institute of Science and Technology (Taiwan)


Published in SPIE Proceedings Vol. 10795:
Electro-Optical and Infrared Systems: Technology and Applications XV
David A. Huckridge; Helge Bürsing; Duncan L. Hickman, Editor(s)

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