Study of an Er-Doped All-PM-Fiber Laser Mode-Locked by Nonlinear Polarization Evolution

被引：18

作者：

Peng, Zhigang ^{[1
]}

Cheng, Zhaochen ^{[1
]}

Bu, Xiangbao ^{[1
]}

Hong, Chang ^{[1
]}

Li, Huijuan ^{[1
]}

Shi, Yuhang ^{[1
]}

Wang, Pu ^{[1
]}

机构：

[1] Beijing Univ Technol, Inst Laser Engn, Beijing Engn Res Ctr Appl Laser Technol, Beijing 100124, Peoples R China

来源：

IEEE PHOTONICS TECHNOLOGY LETTERS | 2018年 / 30卷 / 24期

关键词：

Birefringence; fiber nonlinear optics; mode-locked lasers; optical fiber laser; SATURABLE ABSORBER; GENERATION;

D O I：

10.1109/LPT.2018.2877997

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

We demonstrate an erbium-doped all-fiber laser mode-locked by means of nonlinear polarization evolution in polarization maintaining (PM) fibers. The artificial saturable absorber consists of a piece of PM active fiber and a Faraday mirror (FM) in combination with angle splice. The birefringence of the PM fiber is compensated, and the slope of transmission curve is steepened thanks to the FM and the active fiber. The transmission characteristics demonstrate that the active fiber is a crucial factor to obtain a high repetition rate ultrafast laser. We study and discuss channeled spectra caused by the mechanisms of soliton-soliton interaction and birefringence-induced filter. A good agreement is achieved between the theoretical analyses and experimental results.

引用

页码：2111 / 2114

页数：4

共 27 条

[1] 120 fs, 4.2 nJ pulses from an all-normal-dispersion, polarization-maintaining, fiber laser [J].