Amplification Characteristic of Low Temperature Yb:YAG Crystal Disc Cooled by Alcohol

Zhang Zhenhua; Cheng Xiaojin; Wang Jianlei; Li Lei; Yang Zhongguo; Shi Xiangchun; Chen Weibiao

doi:10.3788/cjl201138.0702013

Journals >Chinese Journal of Lasers >Volume 38 >Issue 7 >Page 702013 > Article

Chinese Journal of Lasers
Vol. 38, Issue 7, 702013 (2011)

Amplification Characteristic of Low Temperature Yb:YAG Crystal Disc Cooled by Alcohol

Zhang Zhenhua^*, Cheng Xiaojin, Wang Jianlei, Li Lei, Yang Zhongguo, Shi Xiangchun, and Chen Weibiao

Author Affiliations

[in Chinese]

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DOI: 10.3788/cjl201138.0702013 Cite this Article Set citation alerts

Zhang Zhenhua, Cheng Xiaojin, Wang Jianlei, Li Lei, Yang Zhongguo, Shi Xiangchun, Chen Weibiao. Amplification Characteristic of Low Temperature Yb:YAG Crystal Disc Cooled by Alcohol[J]. Chinese Journal of Lasers, 2011, 38(7): 702013 Copy Citation Text

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Abstract

We describe a low temperature Yb:YAG crystal disc laser amplifier cooled by alcohol and stuided detailed the re-absorption of Yb:YAG crystal at different temperatures. The amplifier′s characteristic has a decided change with different temperatures. For double-pass amplifier, the small signal gain of 3 is obtained at the temperature of 213 K when the pump energy is 2.17 J. For four-pass amplifier, the output energy of 60 mJ per pulse is obtained, corresponding to a small signal gain of 9.

Keywords

alcohol cooling double-pass amplifier laser amplifier Yb:YAG crystal