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Proceedings Paper

NS-pulse high-peak-power circle-focusing laser beam for laser processing
Author(s): Yangwu Ma; Jianping Li; Di Liang; Xuanhui Lu
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Paper Abstract

A method and the device for obtaining a high peak output power laser with the ns-regime pulse are presented. A Q-switched laser with a novel configuration and a special Q-switched method for the resonator energy storage are proposed. We put a piece of glass with a small hole and special parameters into the resonator which is composed of two totally reflective mirrors in order to obtain the coupling output and realize the step alternation of Q value from "1" to "0" in the resonator. The photons emit out ofthe resonator after a transmission back and forth so as that the output laser pulses with a few ns lifetime are obtained. Simultaneously, the output laser distributes with a circle-axisymmetic pattern and demonstrates good space-transmission and focusing characteristics.

Paper Details

Date Published: 12 September 2002
PDF: 5 pages
Proc. SPIE 4915, Lasers in Material Processing and Manufacturing, (12 September 2002); doi: 10.1117/12.482916
Show Author Affiliations
Yangwu Ma, Zhejiang Univ. (China)
Jianping Li, Zhejiang Univ. (China)
Di Liang, Zhejiang Univ. (United States)
Xuanhui Lu, Zhejiang Univ. (China)


Published in SPIE Proceedings Vol. 4915:
Lasers in Material Processing and Manufacturing
ShuShen Deng; Tatsuo Okada; Klaus Behler; XingZong Wang, Editor(s)

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