Tungsten ditelluride for a nanosecond Ho, Pr:LiLuF4 laser at 2.95 µm. (22nd February 2018)

• Record Type: Journal Article
• Authors: Yan, Zhengyu; Li, Tao; Zhao, Jia; Zhao, Shengzhi; Yang, Kejian; Li, Guiqiu; Li, Dechun; Zhang, Shuaiyi; Li, Jian
• Is Part Of: Laser physics letters. Volume 15:Number 4(2018:Apr.)
• Publication Date: 2018-02-22
• Subjects: mid-infrared solid lasers -- novel saturable absorber -- Q-switched lasers; Lasers -- Periodicals; Physics -- Periodicals; 621.366
• DOI: 10.1088/1612-202X/aaa94b
• Languages: English
• ISSNs: 1612-2011

Abstract

Abstract: The linear and nonlinear absorption characteristics of a home-built multilayer tungsten ditelluride (WTe2 ) saturable absorber at ~3 µ m were demonstrated for the first time. A passively Q-switched Ho, Pr:LiLuF4 laser was realized by inserting the WTe2 -saturable absorber into a plane–concave laser cavity. A maximum average output power of 128 mW, with a pulse duration of 366 ns at a repetition rate of 92 kHz was obtained under an absorbed pump power of 3.67 W, corresponding to a pulse energy of 1.4 µ J.