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Proceedings Paper

Investigation of thermal effects in longitudinally diode-pumped Tm,Ho:YLF lasers
Author(s): Xinlu Zhang; Li Li; Jinhui Cui; Peng Chen
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Paper Abstract

Under considering energy transfer up-conversion (ETU) and ground state re-absorption (GSA), the rate equations of the Tm,Ho:YLF laser are given. The influence of ETU on fractional thermal loading is calculated for the continuous wave and Q-switched Tm,Ho:YLF lasers and the results show that the fractional thermal loading critically depends on the pump-to-mode size ratio. Furthermore, the fractional thermal loading depends on the pulse repetition frequency for a Q-switched laser. The temperature distributions of a Tm,Ho:YLF crystal under different pump powers have been analyzed. The thermal focal length as a function of pump power is calculated.

Paper Details

Date Published: 21 November 2007
PDF: 8 pages
Proc. SPIE 6781, Passive Components and Fiber-based Devices IV, 67814Y (21 November 2007); doi: 10.1117/12.742443
Show Author Affiliations
Xinlu Zhang, Harbin Engineering Univ. (China)
Li Li, Harbin Engineering Univ. (China)
Jinhui Cui, Harbin Engineering Univ. (China)
Peng Chen, Harbin Engineering Univ. (China)

Published in SPIE Proceedings Vol. 6781:
Passive Components and Fiber-based Devices IV
Ming-Jun Li; Jianping Chen; Satoki Kawanishi; Ian H. White, Editor(s)

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