title: Resonantly pumped high efficiency Ho:YAG laser.
abstract: High-efficient CW and Q-switched Ho:YAG lasers resonantly dual-end-pumped by two diode-pumped Tm:YLF lasers at 1908 nm were investigated. A maximum slope efficiency of 74.8% in CW operation as well as a maximum output power of 58.7 W at 83.2 W incident pump power was achieved, which corresponded to an optical-to-optical conversion efficiency of 70.6%. The maximum pulse energy of 2.94 mJ was achieved, with a 31 ns FWHM pulse width and a peak power of approximately 94.7 kW.
authors.affiliation: National Key Laboratory of Tunable Laser Technology, Harbin Institute of Technology, 92 West Dazhi Street, HeiLongjiang, Nan Gang District, Harbin 15001, China.
authors.forename: Ying-Jie
authors.initials: YJ
authors.lastname: Shen
authors.forename: Bao-Quan
authors.initials: BQ
authors.lastname: Yao
authors.forename: Xiao-Ming
authors.initials: XM
authors.lastname: Duan
authors.forename: Tong-Yu
authors.initials: TY
authors.lastname: Dai
authors.forename: You-Lun
authors.initials: YL
authors.lastname: Ju
authors.forename: Yue-Zhu
authors.initials: YZ
authors.lastname: Wang
mesh_terms: D004735:Energy Transfer; D004867:Equipment Design; D019544:Equipment Failure Analysis; D053844:Lasers, Solid-State