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arXiv · 2007.12334

All-fiber mode-locked ytterbium-doped fiber laser with a saturable absorber based on nonlinear Kerr beam cleanup effect

Baofu Zhang·Shanchao Ma·Sihua Lu·Qiurun He·Jing Guo·Zhongxing Jiao·Biao Wang
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Abstract

We theoretically and experimentally demonstrate a novel mode-locked ytterbium-doped fiber laser with a saturable absorber based on nonlinear Kerr beam cleanup effect. The saturable absorber was formed by a 2-m graded-index multimode fiber and a single-mode fiber segment served as a diaphragm. With an all-normal-dispersion-fiber configuration, the laser generated dissipative soliton pulses with pulse duration of 26.38 ps and pulse energy more than 0.25 nJ; output pulses could be compressed externally to 615.7 fs. Moreover, the self-starting mode-locking operation of this laser exhibited a high stability with a measured signal-to-noise ratio of 73.4 dB in the RF spectrum.

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Baofu Zhang, Shanchao Ma, Sihua Lu, Qiurun He, Jing Guo, Zhongxing Jiao, Biao Wang. 2020-07-24. All-fiber mode-locked ytterbium-doped fiber laser with a saturable absorber based on nonlinear Kerr beam cleanup effect. https://doi.org/10.1364/ol.410610

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