15 mJ single-frequency Ho:YAG laser resonantly pumped by a 1.9 µm laser diode. (18th August 2016)

• Record Type: Journal Article
• Authors: Na, Q X; Gao, C Q; Wang, Q; Zhang, Y X; Gao, M W; Ye, Q; Li, Y
• Is Part Of: Laser physics letters. Volume 13:Number 9(2016:Sep.)
• Publication Date: 2016-08-18
• Subjects: injection-seed -- solid-state lasers -- Ho:YAG laser -- Q-switch; Lasers -- Periodicals; Physics -- Periodicals; 621.366
• DOI: 10.1088/1612-2011/13/9/095003
• Languages: English
• ISSNs: 1612-2011

Abstract

Abstract: A 2.09 µ m injection-seeded single-frequency Ho:YAG laser resonantly pumped by a 1.91 µ m laser diode is demonstrated for the first time. The seed laser is a continuous wave (CW) Ho:YAG non-planar ring oscillator. 15.15 mJ single-frequency output energy is obtained from the injection-seeded Q-switched Ho:YAG laser, with a pulse repetition rate of 200 Hz and a pulse width of 109 ns. The half-width of the pulse spectrum is measured to be 4.19 MHz by using the heterodyne technique. The fluctuation of the center frequency of the single-frequency pulses is 1.52 MHz (root mean square (RMS)) in 1 h.