Researchers led by Prof. Tianye Huang at China University of Geosciences (Wuhan), China, are interested in the passive Kerr-resonators-based dissipative cavity solitons. The pulsed driving is an effective method to increase the temporal overlap between cavity soliton (CS) and pump field, thereby increasing the pump-to-comb conversion efficiency. The amplitude-modulated inhomogeneity of the background wave causes the solitons to drift toward edges of the driving pulse. To eliminate the multiple temporal trapping positions, induced by the spontaneous symmetry breaking, they propose the chirped pulse driving for deterministic single soliton generation. They theoretically explain the physical mechanism of the chirp pulse driving, as the combination of amplitude and phase modulation. The results demonstrate the chirp is responsible for the single soliton generation. A detailed investigation for dynamics of CSs sustained by chirped pulses, shows the recovery of spontaneous symmetry breaking. In addition, with considering a weak chirp parameter, the desynchronization-dependent trapping position diagram is divided into multiple areas including two CSs, a single CS, two oscillated CSs, and no CS. With a sufficient chirp parameter considered, the trapping position curve becomes a monotonous function of the desynchronized drift velocity, which indicates deterministic single soliton generation. The work entitled “Dynamics of cavity soliton driven by chirped optical pulses in Kerr resonators” was published on Apr. 27, 2022 in Frontiers of Optoelectronics.
Reference: Jianxing Pan, Chaoyu Xu, Zhichao Wu, Jing Zhang, Tianye Huang, Perry Ping Shum. Dynamics of cavity soliton driven by chirped optical pulses in Kerr resonators. Front. Optoelectron. 15, 14 (2022). https://doi.org/10.1007/s12200-022-00018-3
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Frontiers of Optoelectronics
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Dynamics of cavity soliton driven by chirped optical pulses in Kerr resonators
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