Xiaoming DUAN^1*, Yuanxue CAI^2†, Yu DING¹, Tongyu DAI¹, and Kai ZHAO¹

¹National Key Laboratory of Tunable Laser Technology, Harbin Institute of Technology, Harbin 150001, China
²Department of Physics, Tianjin University of Science and Technology, Tianjin 300457, China

(Received May 6, 2014; Accepted September 13, 2014)

The laser performance of a dual-end pumped Tm:YLF laser is investigated and optimized. With a volume Bragg grating and a Fabry–Perot etalon, at maximum output level, the wavelength peak is 1908.0 nm and the narrow linewidth of 0.1 nm is obtained. For an optimized output coupler with a transmission of 30% and a curve radius of 600 mm, the output power exceeded 115.0 W, obtaining a slope efficiency of 38.4% with respect to the absorbed pump power.

Key words: solid-state laser, Tm:YLF, slab, narrow linewidth

^*E-mail address: xmduan@hit.edu.cn
^†E-mail address: yuanxue{_}cai@tust.edu.cn