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Generation and dynamics of soliton and soliton molecules from a VSe~2~/GO-based fiber laser by Benhai Wang; Haobin Han; Lijun Yu; Yueyue Wang; Chaoqing Dai is a Engineering article available to read on EtoBox.

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Recently, in addition to exploring the application of new saturable absorber devices in fiber lasers, soliton dynamics has also become a focus of current research. In this article, we report an ultrashort pulse fiber laser based on VSe 2 /GO nanocomposite and verify the formation process of soliton and soliton molecules by the numerical simulation. The prepared VSe 2 /GO-based device shows excellent saturable absorption characteristics with a modulation depth of 14.3% and a saturation absorption intensity of 0.93 MW/cm 2 . The conventional soliton is obtained with pulse width of 573 fs, which is currently the narrowest pulse width based on VSe 2 -related material, and has a signal-to-noise ratio of 60.4 dB. In addition, the soliton molecules are realized based on the VSe 2 /GO for the first time and have a pulse interval of ∼2.2 ps. We study the soliton dynamics through numerical simulation and reveal that before the formation of the soliton, it undergoes multiple nonlinear stages, such as soliton mode-locking, soliton splitting, and soliton oscillation. Furthermore, the results of numerical simulation are agreed well with the experimental data. These results indicate that the VSe

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Author

Benhai Wang; Haobin Han; Lijun Yu; Yueyue Wang; Chaoqing Dai

Publisher

Walter de Gruyter GmbH

Published

2021

Language

EN

Field

Engineering (Physical Sciences)