Soliton metamorphosis dynamics in ultrafast fiber lasers
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A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
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Date
2021-05-17
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en
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8
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Physical Review A, Volume 103, issue 5
Abstract
The transitions from the incoherent noise to the coherent soliton have been fully revealed in ultrafast lasers. However, the soliton transformation between different coherent states, termed as soliton metamorphosis, remains an attractive yet uncharted territory. Here, we reveal the ultrafast dynamics of the soliton metamorphosis via single-shot spectroscopy in a specially designed fiber laser capable of emitting fast-switchable dissipative solitons and stretched pulses. It is demonstrated that the soliton metamorphosis is a consecutive evolution process including the self-phase modulation stage, pulse split stage, and transient stretched pulse stage. Particularly, the long-period pulse breathing and the spectral period doubling appear in the forepart and middle part of the last stage. The metamorphosis dynamics and soliton properties are substantiated by numerical simulation based on a three-step model. This work not only unveils the transient evolution physics of the pulse in soliton metamorphosis, but also provides a simple and effective way to control operations of ultrafast lasers.Description
Funding Information: This work was supported by the National Key R&D Program of China (Grant No. 2017YFA0303800), the National Natural Science Foundation of China (Grants No. 11634010 and No. 11874300), and the Fundamental Research Funds for the Central Universities (Grants No. 3102019JC008 and No. 3102019PY002). Publisher Copyright: © 2021 American Physical Society.
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He, Z, Du, Y, Zeng, C, Jiang, B, Mao, D, Sun, Z & Zhao, J 2021, ' Soliton metamorphosis dynamics in ultrafast fiber lasers ', Physical Review A, vol. 103, no. 5, 053516 . https://doi.org/10.1103/PhysRevA.103.053516