Open AccessHarmonic mode locking of bound-state solitons fiber laser based on MoS_2 saturable absorber
Author(s) -
Yadong Wang,
Dong Mao,
Xuetao Gan,
Lei Han,
Chaojie Ma,
Teli Xi,
Yi Zhang,
Wuyun Shang,
Shijia Hua,
Jianlin Zhao
Publication year - 2015
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.23.000205
Subject(s) - fiber laser , saturable absorption , mode locking , optics , materials science , laser , harmonics , harmonic , ultrashort pulse , fiber , optoelectronics , physics , voltage , quantum mechanics , composite material
We present a kind of harmonic mode locking of bound-state solitons in a fiber laser based on molybdenum disulfide (MoS(2)) saturable absorber (SA). The mode locker is fabricated by depositing MoS(2) nanosheets on a D-shaped fiber (DF). In the fiber laser, two solitons form the bound-state pulses with a temporal separation of 3.4 ps, and the bound-state pulses are equally distributed at a repetition rate of 125 MHz, corresponding to 14th harmonics of fundamental cavity repetition rate (8.968 MHz). Single- and multiple-pulses emissions are also observed by changing the pump power and optimizing the DF based MoS(2) SA. Our experiment demonstrates an interesting operation regime of mode-locked fiber laser, and shows that DF based MoS(2) SA can work as a promising high-power mode locker in ultrafast lasers.