Passively Q-switched and mode-locked Tm-Ho co-doped fiber laser using a WS2 saturable absorber fabricated by chemical vapor deposition

被引：53
作者：
Yang, Yingying [1 ,4 ,5 ]
Yang, Song [1 ,4 ,5 ]
Li, Chun [2 ,3 ]
Lin, Xuechun [1 ,4 ,5 ]
机构：
[1] Chinese Acad Sci, Inst Semicond, Lab All Solid State Light Sources, Beijing 100083, Peoples R China
[2] Univ Elect Sci & Technol China, State Key Lab Elect Thin Films & Integrated Devic, 4,Sect 2,North Jianshe Rd, Chengdu 610054, Sichuan, Peoples R China
[3] Univ Elect Sci & Technol China, Sch Optoelect Informat, 4,Sect 2,North Jianshe Rd, Chengdu 610054, Sichuan, Peoples R China
[4] Univ Chinese Acad Sci, Coll Mat Sci & Optoelect Technol, Beijing 101407, Peoples R China
[5] Beijing Engn Technol Res Ctr All Solid State Lase, Beijing 100083, Peoples R China
来源：
OPTICS AND LASER TECHNOLOGY | 2019年 / 111卷
基金：
中国国家自然科学基金;
关键词：
Optical fiber lasers; Mode-locked lasers; Ultrafast optics; PULSE; GENERATION;
D O I：
10.1016/j.optlastec.2018.10.023
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We demonstrate a passively Q-switched and mode-locked Tm-Ho co-doped fiber laser based on a WS2 saturable absorber (SA) fabricated by chemical vapor deposition method. When the pump power increases from 0.32 W to 0.38 W, the repetition rate of the Q-switched laser pulse increases 47.1 kHz to 90.1 kHz and the pulse width decreases from 6.2 mu s to 1.7 mu s. In addition, the mode-locking operation can also be observed by adjusting the polarization controller (PC) and mode-locked laser pulses at 1883.2 nm can be achieved at a high pump power between 0.5 W and 0.64 W. The pulse duration is 1.07 ns and repetition rate is 23.8 MHz and the pulse is the longest mode-locked pulse with WS2-SA ever reported.
引用
收藏
页码：571 / 574
页数：4
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