Regular Paper

[OPTICAL REVIEW Vol. 21, No. 2 (2014) 150-152]
© 2014 The Japan Society of Applied Physics

Efficient Ho:YAP Laser Dual-End-Pumped by Tm Fiber Laser

Zhongwei WANG*, Xiuzhen MA, and Wenhui LI

College of Power and Energy Engineering, Institute of Marine Engine Electronic Control Technology, Harbin Engineering University, Harbin 150001, China

(Received July 30, 2013; Accepted December 16, 2013)

We report the continuous wave and acousto-optically Q-switched operation of an in-band dual-end-pumped Ho:YAP laser at room temperature. A continuous wave output power of 11.0 W at 2118 nm was obtained at an absorbed pump power of 19.8 W, corresponding to a slope efficiency of 62.1%. For the Q-switched mode, a maximum pulse energy of about 1.07 mJ and a minimum pulse width of 29 ns at a repetition rate of 10 kHz were achieved, resulting in a peak power of 36.9 kW.

Key words: solid-state laser, 2-μm laser, Ho:YAP, dual-end-pumped

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