Bright/dark switchable mode-locked fiber laser based on alcohol  

作　　者：张文艳 江慧洁 杨坤 刘楠楠 耿利杰 郝蕴琦 贤天浩 詹黎 Wenyan Zhang;Huijie Jiang;Kun Yang;Nannan Liu;Lijie Geng;Yunqi Hao;Tianhao Xian;Li Zhan(Henan Key Laboratory of Magnetoelectronic Information Functional Materials,School of Physics and Electronic Engineering,Zhengzhou University of Light Industry,Zhengzhou 450002,China;State Key Laboratory of Advanced Optical Communication Systems and Networks,School of Physics and Astronomy,Shanghai Jiao Tong University,Shanghai 200240,China)

机构地区：[1]Henan Key Laboratory of Magnetoelectronic Information Functional Materials,School of Physics and Electronic Engineering,Zhengzhou University of Light Industry,Zhengzhou 450002,China [2]State Key Laboratory of Advanced Optical Communication Systems and Networks,School of Physics and Astronomy,Shanghai Jiao Tong University,Shanghai 200240,China

出　　处：《Chinese Optics Letters》2024年第3期71-75,共5页中国光学快报（英文版）

基　　金：supported by the National Natural Science Foundation of China(NSFC)(Nos.11874040 and 62105296);the Henan Provincial Science and Technology Research Project(No.222102210042);the Doctor Research Project of Zhengzhou University of Light Industry(No.2020BSJJ065)。

摘　　要：A passively switchable erbium-doped fiber laser based on alcohol as the saturable absorber(SA)has been demonstrated.The SA is prepared by filling the gap between two optical patch cords with alcohol to form a sandwich structure.The modulation depth of the alcohol-SA is measured to be 6.4%.By appropriately adjusting the pump power and the polarization state in the cavity,three kinds of mode-locked pulse patterns can be achieved and switched,including bright pulse,bright/dark soliton pair,and dark pulse.These different soliton emissions all operate at the fundamental frequency state,with a repetition rate of 20.05 MHz and a central wavelength of~1563 nm.To the best of our knowledge,this is the first demonstration of a switchable soliton fiber laser using alcohol as the SA.The experimental results further indicate that organic liquid-like alcohol has great potential for constructing ultrafast lasers.

关 键 词：optical solitons fiber lasers ALCOHOL pulsed lasers 

分 类 号：TN248[电子电信—物理电子学]