A theoretical and experimental study on all-normal-dispersion Yb-doped mode-locked fiber lasers

We report on a theoretical and experimental study of an all-normal-dispersion (ANDi) Yb-doped mode-locked fiber laser, in which nonlinear polarization rotation (NPR) is used to realize mode-locking without any dispersion compensation. Based on the coupled nonlinear Schr6dinger (CNLS) equation, a mod...

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Published inChinese physics B Vol. 22; no. 4; pp. 268 - 273
Main Author 池俊杰 李平雪 杨春 赵自强 李尧 王雄飞 钟国舜 赵鸿 姜东升
Format Journal Article
LanguageEnglish
Published 01.04.2013
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ISSN1674-1056
2058-3834
1741-4199
DOI10.1088/1674-1056/22/4/044204

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Summary:We report on a theoretical and experimental study of an all-normal-dispersion (ANDi) Yb-doped mode-locked fiber laser, in which nonlinear polarization rotation (NPR) is used to realize mode-locking without any dispersion compensation. Based on the coupled nonlinear Schr6dinger (CNLS) equation, a model simulating the mode-locked process of an all-normal-dispersion ring fiber laser is developed, which shows that the achievement of stable mode-locking depends on the alignment of the polarization controller (PC) along the fast-polarization axis of the fiber, the birefringence intensity, and the net cavity dispersion. According to the theoretical analysis, stable mode-locked pulses with pulse duration 300 ps and average output power 33.9 mW at repetition rate 36 MHz are obtained.
Bibliography:all-normal-dispersion, nonlinear polarization rotation, mode-locked, Yb-doped fiber laser
Chi Jun-Jie, Li Ping-Xue, Yang Chun, Zhao Zi-Qiang, Li Yao, Wang Xiong-Fei, Zhong Guo-Shun, Zhao Hong, Jiang Dong-Sheng(a) Institute of Laser Engineering, Beijing University of Technology, Beijing 100124, China b) science and Technology on Solid-State Laser Laboratory, Beijing 100015, China
We report on a theoretical and experimental study of an all-normal-dispersion (ANDi) Yb-doped mode-locked fiber laser, in which nonlinear polarization rotation (NPR) is used to realize mode-locking without any dispersion compensation. Based on the coupled nonlinear Schr6dinger (CNLS) equation, a model simulating the mode-locked process of an all-normal-dispersion ring fiber laser is developed, which shows that the achievement of stable mode-locking depends on the alignment of the polarization controller (PC) along the fast-polarization axis of the fiber, the birefringence intensity, and the net cavity dispersion. According to the theoretical analysis, stable mode-locked pulses with pulse duration 300 ps and average output power 33.9 mW at repetition rate 36 MHz are obtained.
11-5639/O4
ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
ISSN:1674-1056
2058-3834
1741-4199
DOI:10.1088/1674-1056/22/4/044204