Open AccessResonantly pumped high efficiency Ho:GdTaO4 laser
Author(s) -
Xiaoming Duan,
Guangpeng Chen,
Chuanpeng Qian,
Yingjie Shen,
Renqin Dou,
Qingli Zhang,
Linjun Li,
Dai Taguchi
Publication year - 2019
Publication title -
optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.27.018273
Subject(s) - slope efficiency , optics , materials science , laser , laser beam quality , fiber laser , laser beams , crystal (programming language) , beam (structure) , optoelectronics , physics , computer science , programming language
We demonstrate a continuous-wave 2.1-µm laser with a new Ho:GdTaO 4 crystal pumped by a 1940.3-nm Tm fiber laser at room temperature. The maximum output power of 11.2 W at 2068.39 nm was achieved, corresponding to a slope efficiency of 72.9%. Moreover, the beam quality factor was measured to be about 1.4 at the maximum output level.