title: Microfiber-based few-layer MoS2 saturable absorber for 2.5 GHz passively harmonic mode-locked fiber laser.
abstract: We reported on the generation of high-order harmonic mode-locking in a fiber laser using a microfiber-based molybdenum disulfide (MoS(2)) saturable absorber (SA). Taking advantage of both the saturable absorption and large third-order nonlinear susceptibilities of the few-layer MoS(2), up to 2.5 GHz repetition rate HML pulse could be obtained at a pump power of 181 mW, corresponding to 369th harmonic of fundamental repetition frequency. The results provide the first demonstration of the simultaneous applications of both highly nonlinear and saturable absorption effects of the MoS(2), indicating that the microfiber-based MoS(2) photonic device could serve as high-performance SA and highly nonlinear optical component for application fields such as ultrafast nonlinear optics.
authors.forename: Meng
authors.initials: M
authors.lastname: Liu
authors.forename: Xu-Wu
authors.initials: XW
authors.lastname: Zheng
authors.forename: You-Li
authors.initials: YL
authors.lastname: Qi
authors.forename: Hao
authors.initials: H
authors.lastname: Liu
authors.forename: Ai-Ping
authors.initials: AP
authors.lastname: Luo
authors.forename: Zhi-Chao
authors.initials: ZC
authors.lastname: Luo
authors.forename: Wen-Cheng
authors.initials: WC
authors.lastname: Xu
authors.forename: Chu-Jun
authors.initials: CJ
authors.lastname: Zhao
authors.forename: Han
authors.initials: H
authors.lastname: Zhang
mesh_terms: D004220:Disulfides / Q000032:analysis*; D004867:Equipment Design; D005336:Fiber Optic Technology / Q000295:instrumentation*; D006108:Graphite / Q000737:chemistry*; D007834:Lasers; D008027:Light; D008982:Molybdenum / Q000032:analysis*; D055100:Optical Fibers
chemical_list: D004220:Disulfides; D006108:Graphite; D008982:Molybdenum; C082964:molybdenum disulfide