Low-noise compact fiber laser based on nonlinear polarization evolution in an all-polarization-maintaining figure-8 cavity  

作　　者：Lian Zhou Daping Luo Gehui Xie Shiping Xiong Haipeng Lou Zilin Zhao Yuanfeng Di Chenglin Gu Wenxue Li 周廉;罗大平;谢戈辉;熊世萍;娄海鹏;赵子林;狄元丰;顾澄琳;李文雪(State Key Laboratory of Precision Spectroscopy,East China Normal University,Shanghai 200062,China)

机构地区：[1]State Key Laboratory of Precision Spectroscopy,East China Normal University,Shanghai 200062,China

出　　处：《Chinese Optics Letters》2024年第7期47-52,共6页中国光学快报（英文版）

基　　金：supported by the National Natural Science Foundation of China(Nos.12204178,12134004,12104162,and 12274141).

摘　　要：We demonstrate an all-polarization-maintaining(APM)fiber mode-locked laser based on nonlinear polarization evolution(NPE).A well-designed Sagnac fiber loop is employed to establish the nonlinear polarization evolution process in a polarization beam splitter(PBS)figure-8 fiber laser.Nonlinear loss curves are calculated to verify the saturable absorption characteristic of this NPE-based APM oscillator.Then,we simulate the pulse propagation process in the cavity to demonstrate the pulse mode-locked formation.Finally,we also design a realizable compact scheme to further reduce noise disturbances,achieving a 101-fs mode-locked pulse train with a 0.3-mrad integrated phase noise and a 0.006%integrated relative intensity noise(RIN).This figure-8 fiber laser provides a new scheme for compacting low-noise compact APM fiber lasers based on the NPE mode-locked mechanism.

关 键 词：ultrafast laser fiber laser polarization-maintaining 

分 类 号：TN248[电子电信—物理电子学]