Open AccessDiode-pumped continuous wave and passively Q-switched Tm, Mg: LiTaO_3 lasers
Author(s) -
Tianli Feng,
T. Li,
Shengzhi Zhao,
Quan Li,
Kejian Yang,
Jia Zhao,
Wenchao Qiao,
Hao Yin,
P. Zhang,
Y. Wang,
Jianqiu Xu
Publication year - 2014
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.22.003818
Subject(s) - laser , optics , continuous wave , materials science , saturable absorption , q switching , diode , pulse (music) , optoelectronics , pulse width modulation , fiber laser , power (physics) , physics , detector , quantum mechanics
We have demonstrated the continuous wave and passively Q-switched Tm, Mg: LiTaO3 lasers for the first time. In continuous wave (CW) regime, a maximum CW output power of 1.03 W at 1952 nm was obtained, giving a slope efficiency of 9.5% and a beam quality M2 = 2.2. In passive Q-switching regime, a single walled carbon nanotube (SWCNT) was employed as saturable absorber (SA). The Tm,Mg:LiTaO3 laser has yielded a pulse of 560 ns under repetition rate of 34.2 kHz at 1926 nm, corresponding to a single pulse energy of 10.1 μJ. The results indicate a promising potential of nonlinear crystals in the applications for laser host materials.