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Proceedings Paper

430mW diode-pumped Yb:GdCOB laser and its thermal effect
Author(s): Jianghai Hu; Yanrong Song; Weiming Yu; Yonggang Wang; Zhuang Zhuo; Zhigang Zhang
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Paper Abstract

In this paper, we report a diode end pumped laser with a Yb3+-doped Ca4GdO(BO3)3 crystal (Yb:GdCOB). The dopant concentration of the crystal was 7%. The crystal was pumped longitudinally at 976nm by a fiber-coupled diode laser. The maximum output power of the laser emitted at 1.055um was 430mW, and the laser slope efficiency was 75% with respect to the absorbed pump power. We also observed that the output power still increased when the crystal no longer absorbed more pumped power (the crystal had been saturated). The possible reason may be that the thermal lens effect changed the distribution of the laser mode. This will be discussed in part 3.

Paper Details

Date Published: 10 June 2006
PDF: 6 pages
Proc. SPIE 6344, Advanced Laser Technologies 2005, 634428 (10 June 2006); doi: 10.1117/12.694413
Show Author Affiliations
Jianghai Hu, Beijing Univ. of Technology (China)
Yanrong Song, Beijing Univ. of Technology (China)
Weiming Yu, Beijing Univ. of Technology (China)
Yonggang Wang, Univ. of Tianjin (China)
Zhuang Zhuo, Shanda Luneng Information & Technology Co., Ltd. (China)
Zhigang Zhang, Beijing Univ. of Technology (China)
Univ. of Tianjin (China)

Published in SPIE Proceedings Vol. 6344:
Advanced Laser Technologies 2005
Ivan A. Shcherbakov; Kexin Xu; Qingyue Wang; Alexander V. Priezzhev; Vladimir I. Pustovoy, Editor(s)

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