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1. (WO2018076522) SATURABLE ABSORPTION MIRROR OF A COMPOSITE STRUCTURE

Pub. No.:    WO/2018/076522    International Application No.:    PCT/CN2016/112234
Publication Date: Fri May 04 01:59:59 CEST 2018 International Filing Date: Wed Dec 28 00:59:59 CET 2016
IPC: H01S 3/098
Applicants: SUZHOU INSTITUTE OF NANO-TECH AND NANO-BIONICS(SINANO), CHINESE ACADEMY OF SCIENCES
中国科学院苏州纳米技术与纳米仿生研究所
Inventors: ZHANG, Ziyang
张子旸
LIU, Qinglu
刘清路
Title: SATURABLE ABSORPTION MIRROR OF A COMPOSITE STRUCTURE
Abstract:
Disclosed is a saturable absorption mirror of a composite structure, comprising: a substrate (10), a buffer layer (20) on the substrate, a distributed Bragg mirror (30) on the buffer layer, a quantum dot saturable absorber (40) or a quantum well saturable absorber (70) located on the distributed Bragg mirror, and a graphene saturable absorber (50) located on the quantum dot or quantum well saturable absorber. The graphene saturable absorber and the quantum dot saturable absorber are combined, or the graphene saturable absorber and the quantum well saturable absorber are combined to act as a saturable absorber in the saturable absorption mirror to improve the thermal damage threshold and the stability of the optical properties of the saturable absorber, and to achieve the ultra-fast laser pulses having a high-power and short-pulse locked mode, a stable output repetition cycle, a narrow pulse width, and a short response time.