Open AccessWavelength-tunable Yb-doped passively Q-switching fiber laser based on WS_2 saturable absorber
Author(s) -
Lin Jun,
Yangyang Hu,
Changjia Chen,
Changzhi Gu,
Lixin Xu
Publication year - 2015
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.23.029059
Subject(s) - saturable absorption , materials science , fiber laser , optics , wavelength , q switching , laser , optoelectronics , pulse duration , doping , fiber , physics , composite material
We have fabricated an Yb-doped passively Q-switching fiber laser based on WS(2) saturable absorber. Both the operating wavelength and the repetition rate can be tuned in a wide range. The operating wavelength can be continuously tuned from 1027 nm to 1065 nm under the Q-switching state at a fixed pump power, while the repetition rate increases from 60.2 kHz to 97.0 kHz by varying pump power at a fixed wavelength of 1048.1 nm. The shortest pulse duration of 1.58 µs was observed. To the best of our knowledge, it's the first demonstration of WS(2)-based passively Q-switching fiber laser with a wide tunable range at 1.0 μm band.