2012•Laser PhysicsRequires access

High-power and efficiency continuous-wave operation of a-cut Ho:YAP laser at room temperature

Yingjie Shen, Baoquan Yao, Xiaoming Duan, Y. L. Ju, You Wang

Abstract

We report the continuous-wave (CW) operation of a room-temperature a-cut Ho:YAP laser resonantly end-pumped by a diode-pumped Tm:YLF laser at 1.91 μm. A maximum CW output power of 14.6 W at 2118.7 nm for a-oriented Ho:YAP was obtained, corresponding to the slope efficiency of 69.35% and optical-to-optical conversion efficiency of 63.04% with respect to absorbed pump power. The laser operated at a single mode (TEM00) with the beam quality factor of M 2 ∼ 1.51.

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Key concepts: Continuous wave, Materials science, Slope efficiency, Laser, Energy conversion efficiency, Optics, Laser beam quality, Power (physics)