Generation of Broadband Spectrum from a Simple Nonlinear-Polarization-Evolution Mode-Locked Yb-Doped Fiber Oscillator

We demonstrate a nonlinear polarization evolution mode-locked Yb-doped fiber oscillator with the broadband spectrum output operating in a dispersion-managed regime. Pumped by a 976 nm single-mode laser diode, stable mode-locked ultrashort pulses are emitted with an average power of 198mW at a repeti...

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Bibliographic Details
Published in:Chinese physics letters 2015-05, Vol.32 (5), p.91-93
Main Author: 谢阳 韩海年 刘文军 魏志义
Format: Article
Language:English
Subjects:
Broadband
Dispersion
Evolution
Fibers
Oscillators
Polarization
Pulse duration
Repetition
宽带
振荡器
掺镱光纤
激光二极管泵浦
系统
输出频谱
锁模
非线性极化
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Summary:We demonstrate a nonlinear polarization evolution mode-locked Yb-doped fiber oscillator with the broadband spectrum output operating in a dispersion-managed regime. Pumped by a 976 nm single-mode laser diode, stable mode-locked ultrashort pulses are emitted with an average power of 198mW at a repetition rate of 124MHz, corresponding to a pulse energy of 1.6nJ. The output spectrum spans from 950nm to ll50nm so that the transform-limited pulse duration is as short as 23 fs. Due to the imperfect dispersion compensation, we compress the pulses to 32 fs in this experiment.
ISSN:0256-307X
1741-3540
DOI:10.1088/0256-307X/32/5/054211