Open AccessPassively Q-switched Nd:YAlO_3 nanosecond laser using MoS_2 as saturable absorber
Author(s) -
Bin Xu,
Yongjie Cheng,
Yi Wang,
You Huang,
Jian Peng,
Zhigang Luo,
Huiying Xu,
Jian Weng,
R. Moncorgé
Publication year - 2014
Publication title -
optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.22.028934
Subject(s) - saturable absorption , materials science , laser , optics , nanosecond , q switching , optoelectronics , pulse (music) , pulse width modulation , fiber laser , voltage , wavelength , physics , quantum mechanics , detector
We report on the first passively Q-switched Nd:YAlO₃ laser at ~1079.5 nm using MoS₂ as saturable absorber. The MoS₂ saturable absorber is fabricated by transferring the liquid-phase-exfoliated MoS₂ nanosheets onto a BK7 glass substrate. By inserting the glass MoS₂ saturable absorber into a plano-concave Nd:YAlO₃ laser cavity, we obtain a stable Q-switched laser operation with a maximum average output power of 0.26 W corresponding to a pulse repetition rate of 232.5 kHz, a pulse width of 227 ns and a pulse energy of about 1.11 μJ. The results experimentally confirm the promising application of the new kind of 2D material, few-layer MoS₂, in solid state lasers.