Ho:YVO4 laser developed using a diode-pumped Tm:YAP laser" />
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21 September 2020 Compact intracavity-pumped Ho:YVO4 laser developed using a diode-pumped Tm:YAP laser
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Abstract

We developed a compact 2-μm intracavity-pumped Ho  :  YVO4 laser using a diode-pumped Tm:YAP laser at room temperature. Before applying the Ho laser, the lasing characteristics of the a-cut Tm:YAP laser were studied, and a maximum output power of 2.76 W at 1951.6 nm was obtained under an incident laser diode pump power of 25 W with a slope efficiency of 15.8%. Under the same cavity structure, the continuous-wave Ho  :  YVO4 laser yielded a maximum output power of 1.7 W at 2052.7 nm for an incident diode pump power of 29 W, corresponding to a slope efficiency of 10.4%. The beam quality factor (M2) of the Ho  :  YVO4 laser at the maximum output power was estimated to be 1.16 and 1.26 in the horizontal and vertical directions, respectively, which indicates the occurrence of near-diffraction-limited beam propagation.

© 2020 Society of Photo-Optical Instrumentation Engineers (SPIE) 0091-3286/2020/$28.00 © 2020 SPIE
Huawen Hu, Haizhou Huang, Yan Ge, Jie Zhong, Jianhong Huang, Jing Deng, Jinhui Li, and Wenxiong Lin "Compact intracavity-pumped Ho:YVO4 laser developed using a diode-pumped Tm:YAP laser," Optical Engineering 59(9), 096106 (21 September 2020). https://doi.org/10.1117/1.OE.59.9.096106
Received: 19 June 2020; Accepted: 21 August 2020; Published: 21 September 2020
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