Investigation of thermal effects in longitudinally diode-pumped Tm,Ho:YLF lasers

Xinlu Zhang; Li Li; Jinhui Cui; Peng Chen

doi:10.1117/12.742443

21 November 2007 Investigation of thermal effects in longitudinally diode-pumped Tm,Ho:YLF lasers

Xinlu Zhang, Li Li, Jinhui Cui, Peng Chen

Proceedings Volume 6781, Passive Components and Fiber-based Devices IV; 67814Y (2007) https://doi.org/10.1117/12.742443
Event: Asia-Pacific Optical Communications, 2007, Wuhan, China

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.

Citation Download Citation

Xinlu Zhang, Li Li, Jinhui Cui, and Peng Chen "Investigation of thermal effects in longitudinally diode-pumped Tm,Ho:YLF lasers", Proc. SPIE 6781, Passive Components and Fiber-based Devices IV, 67814Y (21 November 2007); https://doi.org/10.1117/12.742443

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