Observation of square- and h-shaped pulse from a mode-locked erbium-doped fiber laser

被引：7

作者：

Xu, Zhen ^{[1
]}

Jia, Dongfang ^{[1
]}

Wang, Zhaoying ^{[1
]}

Ge, Chunfeng ^{[1
]}

Yang, Tianxin ^{[1
]}

机构：

[1] Tianjin Univ, Coll Precis Instrument & Optoelect Engn, Lab Fiber Opt & Opt Commun, Tianjin 300072, Peoples R China

来源：

APPLIED OPTICS | 2021年 / 60卷 / 13期

基金：

中国国家自然科学基金;

关键词：

DISSIPATIVE SOLITON RESONANCE; GENERATION; LINEWIDTH; SINGLE;

D O I：

10.1364/AO.423380

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We demonstrate the generation of a type of square-shaped pulse in a passively mode-locked erbium-doped fiber laser based on the nonlinear optical loop mirror technique. Through adjusting the pump power and polarization state, square-shaped pulses are generated. Furthermore, we investigate the pulse profile in relation to the optical spectrum. By filtering out short-wavelength spectrum components gradually, pulse shaping is achieved, and the top of the square-shaped pulse becomes flat. Subsequently, by filtering out long-wavelength spectrum components, a type of h-shaped pulse is obtained and the formation reason is also investigated. (C) 2021 Optical Society of America.

引用

页码：3591 / 3595

页数：5

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