35 W continuous-wave Ho:YAG single-crystal fiber laser

Yongguang Zhao; Li Wang; Weidong Chen; Jianlei Wang; Qingsong Song; Xiaodong Xu; Ying Liu; Deyuan Shen; Jun Xu; Xavier Mateos; Pavel Loiko; Zhengping Wang; Xinguang Xu; Uwe Griebner; Valentin Petrov

doi:10.1017/hpl.2020.25

Journals >High Power Laser Science and Engineering >Volume 8 >Issue 2 >Page 02000e25 > Article

High Power Laser Science and Engineering
Vol. 8, Issue 2, 02000e25 (2020)

35 W continuous-wave Ho:YAG single-crystal fiber laser

Yongguang Zhao^1,*, Li Wang², Weidong Chen², Jianlei Wang³..., Qingsong Song³, Xiaodong Xu³, Ying Liu³, Deyuan Shen³, Jun Xu⁴, Xavier Mateos⁵, Pavel Loiko⁶, Zhengping Wang⁷, Xinguang Xu⁷, Uwe Griebner² and Valentin Petrov²|Show fewer author(s)

Author Affiliations

¹Max Born Institute for Nonlinear Optics and Short Pulse Spectroscopy, Max-Born-Str. 2a, D-12489Berlin, Germany

²Max Born Institute for Nonlinear Optics and Short Pulse Spectroscopy, Max-Born-Str. 2a, D-12489Berlin, Germany

³Jiangsu Key Laboratory of Advanced Laser Materials and Devices, Jiangsu Normal University, Xuzhou221116, China

⁴School of Physics Science and Engineering, Institute for Advanced Study, Tongji University, Shanghai200092, China

⁵Departament Química Física i Inorgànica, Física i Cristal.lografia de Materials i Nanomaterials (FiCMA-FiCNA)-EMaS, Universitat Rovira i Virgili, Campus Sescelades, E-43007Tarragona, Spain

⁶Centre de Recherche sur les Ions, les Matériaux et la Photonique (CIMAP), UMR 6252 CEA-CNRS-ENSICAEN, Université de Caen, 6 Boulevard du Maréchal Juin, 14050Caen Cedex 4, France

⁷State Key Laboratory of Crystal Materials and Institute of Crystal Materials, Shandong University, Jinan250100, China

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DOI: 10.1017/hpl.2020.25 Cite this Article Set citation alerts

Yongguang Zhao, Li Wang, Weidong Chen, Jianlei Wang, Qingsong Song, Xiaodong Xu, Ying Liu, Deyuan Shen, Jun Xu, Xavier Mateos, Pavel Loiko, Zhengping Wang, Xinguang Xu, Uwe Griebner, Valentin Petrov, "35 W continuous-wave Ho:YAG single-crystal fiber laser," High Power Laser Sci. Eng. 8, 02000e25 (2020) Copy Citation Text

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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.

Keywords

high-power laser Ho:YAG mid-IR laser single-crystal fiber