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arXiv · 1904.06706

Generation mode-locked square-wave pulse based on reverse saturable absorption effect in graded index multimode fiber

Zhipeng Dong·Shu jie Li·Jiaqiang Lin·Hongxun Li·Runxia Tao·Chun Gu·Peijun Yao·Lixin Xu
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Abstract

We firstly report mode-locked square-wave pulse in Yb-doped fiber laser based on graded index multimode fiber of reverse suturable absorption. By adjusting the pump power, the width of the square-wave can be tuned range from 350 ps to 52.6 ns with 3dB bandwidth spectrum of 0.73 nm. The supermode suppression ratio exceeds ~ 65 dB, which indicates excellent mode-locked operation state, and we also study the characteristic of pulse by the chirp measurement system. The mode-locked square-wave pulse fiber laser can sever as high power light source for industrial applications.

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Zhipeng Dong, Shu jie Li, Jiaqiang Lin, Hongxun Li, Runxia Tao, Chun Gu, Peijun Yao, Lixin Xu. 2019-04-14. Generation mode-locked square-wave pulse based on reverse saturable absorption effect in graded index multimode fiber. https://arxiv.org/abs/1904.06706

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