Open Access1319 nm and 1338 nm dual-wavelength operation of LD end-pumped Nd:YAG ceramic laser
Author(s) -
Lei Guo,
Ruijun Lan,
Hong Liu,
Haohai Yu,
Huaijin Zhang,
Jing Wang,
Dawei Hu,
Shidong Zhuang,
Lijuan Chen,
Yu-Jun Zhao,
Xinguang Xu,
Zhengping Wang
Publication year - 2010
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.18.009098
Subject(s) - materials science , optics , slope efficiency , laser , wavelength , pulse width modulation , energy conversion efficiency , saturable absorption , optoelectronics , q switching , power (physics) , fiber laser , physics , quantum mechanics
In this paper, we demonstrate the efficient 1.3 um dual-wavelength operation of LD end-pumped Nd:YAG ceramic laser. With a plano-concave cavity, a maximum continuous-wave dual-wavelength output power of 5.92 W is obtained under an incident pump power of 20.5 W, giving a slope efficiency of 30.3% and an optical-optical conversion efficiency of 29.0%. With Co(2+):LaMgAl(11)O(19) crystal as the saturable absorber, the passively Q-switched dual-wavelength operation is achieved for the first time to our knowledge. The maximum passively Q-switched average output power is 226 mW, the minimum pulse width is 15 ns, and the highest pulse repetition rate is 133 kHz.