Q-switched and mode-locked Er-doped fiber laser using PtSe2 as a saturable absorber

被引：83
|
作者：
Zhang, Kang [1 ,2 ]
Feng, Ming [1 ,2 ]
Ren, Yangyang [1 ,2 ]
Liu, Fang [1 ,2 ]
Chen, Xingshuo [1 ,2 ]
Yang, Jie [1 ,2 ]
Yan, Xiao-Qing [1 ,2 ]
Song, Feng [1 ,2 ]
Tian, Jianguo [1 ,2 ]
机构：
[1] Nankai Univ, Sch Phys, Minist Educ, Key Lab Weak Light Nonlinear Photon, Tianjin 300071, Peoples R China
[2] Nankai Univ, TEDA Appl Phys Sch, Tianjin 300071, Peoples R China
来源：
PHOTONICS RESEARCH | 2018年 / 6卷 / 09期
基金：
中国国家自然科学基金;
关键词：
TOPOLOGICAL INSULATOR; ELECTRONIC-PROPERTIES; BLACK PHOSPHORUS; PULSE GENERATION; OPERATION; MONOLAYER; LOCKING; GHZ;
D O I：
10.1364/PRJ.6.000893
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We report a passively Q-switched and mode-locked erbium-doped fiber laser (EDFL) based on PtSe2, a new two-dimensional material, as a saturable absorber (SA). Self-started Q-switching at 1560 nm in the EDFL was achieved at a threshold pump power of 65 mW, and at the maximum pump power of 450 mW, the maximum single Q-switched pulse energy is 143.2 nJ. Due to the polarization-dependent characteristics of the PtSe2-based SA, the laser can be switched from the Q-switched state to the mode-locked state by adjusting the polarization state. A mode-locked pulse train with a repetition rate of 23.3 MHz and a pulse width of 1.02 ps can be generated when the pump power increases to about 80 mW, and the stable mode-locked state is maintained until the pump power reaches its maximum 450 mW. The maximum single mode-locked pulse energy is 0.53 nJ. This is the first time to our knowledge that successful generation of stable Q-switched and mode-locked pulses in an Er-doped fiber laser has been obtained by using PtSe2 as a saturable absorber. (C) 2018 Chinese Laser Press
引用
收藏
页码：893 / 899
页数：7
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