Dynamics of pulsating solitons with chaotic behaviors from a 1.7 μm ultrafast fiber laser

Yubo Ji, Yatao Yang, Yufeng Song, Ke Wang, Geguo Du, Jun Liu, Dingyuan Tang and Zhenhong Wang

Chaos, Solitons & Fractals, 2024, vol. 187, issue C

Abstract: We demonstrate observation and dynamics of unique soliton pulsation regime in an ultrafast fiber laser at 1.7 μm. It is found that with either single-soliton pulse or multiple-soliton pulses in cavity the laser emission could exhibit periodic intensity and shot-to-shot spectra variations as measured based on the dispersive Fourier transformation (DFT) technique. Further, detailed studies turned out that the soliton pulsation can comprise numerous small pulses with random intensities, exhibiting chaotic characteristics. Besides, all the pulses within the multiple solitons possess identical pulsation period. In addition, despite of the fact that the temporal intervals between the multiple solitons are on the order of tens of nanoseconds among them, their pulsations demonstrate excellent synchronicity. The experimental observations are further revealed by numerical simulations. These results can provide insights into ways to optimize designs of laser sources and open up new potential for generation of pulsating solitons in ultrafast fiber lasers at different wavelengths.

Keywords: Ultrafast fiber lasers; 1.7 μm; Pulsating solitons; Soliton dynamics (search for similar items in EconPapers)
Date: 2024
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Persistent link: https://EconPapers.repec.org/RePEc:eee:chsofr:v:187:y:2024:i:c:s0960077924009317

DOI: 10.1016/j.chaos.2024.115379

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