9.8 W continuous-wave laser from an Nd:YMgB5O10 crystal and its passively Q-switching laser performance
Abstract
This paper systematically reports the continuous-wave (CW) and passively Q-switched pulsed laser performance of an Nd:YMgB5O10 (Nd:YMB) crystal under laser diode pumping. A CW output power of 9.8 W was obtained at an absorbed pump power of 25.9 W, with a slope efficiency of 43.3%. This represents the highest CW output power reported to date for the 1 μm LnMgB5O10 family of laser crystals. Orthogonally polarized multi-wavelength emission at 1076, 1082, and 1090 nm was also observed. By using Cr:YAG as a saturable absorber, passively Q-switched laser operation was achieved, delivering a maximum average output power of 4.3 W. The laser produced pulses with a repetition rate of 115.3 kHz, a pulse width of 31 ns, a peak power of 1.20 kW, and a single pulse energy of 37.2 μJ. The results indicate that Nd:YMB exhibits excellent potential as a multi-wavelength laser gain medium. This makes it a promising candidate for applications such as terahertz wave generation via difference frequency generation and precision laser metrology.
Article Details
Journal Info
Applied Physics Letters
American Institute of Physics
Authors (9)
Qingxuan Zhu
State Key Laboratory of Functional Crystals and Devices, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences 1 , Fuzhou, Fujian 350002,
Ying Xie
Jinming Huang
State Key Laboratory of Functional Crystals and Devices, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences 1 , Fuzhou, Fujian 350002,
Shengyuan Pan
State Key Laboratory of Functional Crystals and Devices, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences 1 , Fuzhou, Fujian 350002,
JinYuan Wu
State Key Laboratory of Functional Crystals and Devices, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences 1 , Fuzhou, Fujian 350002,
Zhenwei Ou
State Key Laboratory of Functional Crystals and Devices, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences 1 , Fuzhou, Fujian 350002,
Shijia Sun
College of Physics Qingdao Key Laboratory of Ultrabroadband Terahertz Crystals and System Applications Qingdao Broadband Terahertz Spectroscopy Technology Engineering Research Center Qingdao University Qingdao People's Republic of China
Bingxuan Li
State Key Laboratory of Functional Crystals and Devices, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences 1 , Fuzhou, Fujian 350002,
Ge Zhang