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1. (WO2018205087) HETEROJUNCTION SATURABLE ABSORPTION MIRROR AND PREPARATION METHOD THEREFOR, AND PULSE FIBER LASER

Pub. No.:    WO/2018/205087    International Application No.:    PCT/CN2017/083438
Publication Date: Fri Nov 16 00:59:59 CET 2018 International Filing Date: Tue May 09 01:59:59 CEST 2017
IPC: H01S 3/098
H01S 3/067
Applicants: SHENZHEN UNIVERSITY
深圳大学
Inventors: YAN, Peiguang
闫培光
CHEN, Hao
陈浩
XING, Fengfei
邢凤飞
Title: HETEROJUNCTION SATURABLE ABSORPTION MIRROR AND PREPARATION METHOD THEREFOR, AND PULSE FIBER LASER
Abstract:
A heterojunction saturable absorption mirror (100) and a preparation method therefor, and a pulse fiber laser. The heterojunction saturable absorption mirror (100) comprises a substrate (101), a gold film layer (102) covering the substrate (101), and an atomic hierarchical two-dimensional material film covering the gold film layer (102). The atomic hierarchical two-dimensional material film comprises an atomic hierarchical two-dimensional material slow saturable absorber heterojunction thin film (103), an isolation material (104) and an atomic hierarchical two-dimensional material fast saturable absorber heterojunction thin film (105) which are successively arranged. The heterojunction saturable absorption mirror (100) forms an atomic hierarchical two-dimensional heterojunction saturable absorption mirror (100) by means of alternately stacking different two-dimensional atomic hierarchical materials, and in combination with excellent characteristics of a two-dimensional laminated material itself, the regulation and control over the nonlinear characteristic of a saturable absorber is realized.