1. 35 W continuous-wave Ho:YAG single-crystal fiber laser.
- Author
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Zhao, Yongguang, Wang, Li, Chen, Weidong, Wang, Jianlei, Song, Qingsong, Xu, Xiaodong, Liu, Ying, Shen, Deyuan, Xu, Jun, Mateos, Xavier, Loiko, Pavel, Wang, Zhengping, Xu, Xinguang, Griebner, Uwe, and Petrov, Valentin
- Subjects
FIBER lasers ,CONTINUOUS wave lasers ,LASER pumping ,YAG lasers ,LASERS - Abstract
We report on a high-power Ho:YAG single-crystal fiber (SCF) laser inband pumped by a high-brightness Tm-fiber laser at 1908 nm. The Ho:YAG SCF grown by the micro-pulling-down technique exhibits a propagation loss of $0.05\pm 0.005~\text{cm}^{-1}$ at $2.09~\unicode[STIX]{x03BC}\text{m}$. A continuous-wave output power of 35.2 W is achieved with a slope efficiency of 42.7%, which is to the best of our knowledge the highest power ever reported from an SCF-based laser in the 2 $\unicode[STIX]{x03BC}\text{m}$ spectral range. [ABSTRACT FROM AUTHOR]
- Published
- 2020
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