Passively Q-switched Er:YAG laser at 1645 nm utilizing a multilayer molybdenum ditelluride (MoTe2) saturable absorber. (13th July 2018)

• Record Type: Journal Article
• Authors: Liang, Yangyang; Zhao, Jia; Qiao, Wenchao; Yang, Kejian; Li, Tao; Zhao, Shenzhi
• Is Part Of: Laser physics letters. Volume 15:Number 9(2018:Sep.)
• Publication Date: 2018-07-13
• Subjects: MoTe2-SA -- Q-switched lasers -- solid state lasers -- mid-infrared lasers -- liquid phase exfoliation; Lasers -- Periodicals; Physics -- Periodicals; 621.366
• DOI: 10.1088/1612-202X/aacfae
• Languages: English
• ISSNs: 1612-2011

Abstract

Abstract: An MoTe2 saturable absorber (SA) was fabricated for mid-infrared laser operations. By using this type of home-made SA as a Q-switcher for an in-band pumped Er:YAG laser, stable pulse trains with an average output power of 1.14 W were obtained at an absorbed pump power of 10.51 W. The Q-switched pulse envelope had a repetition rate of 41.59 kHz and its pulse duration was measured to be 1.048 µ s, corresponding to a pulse energy of 27.4 µ J and a peak power of 26.14 W.