期刊
JOURNAL OF LIGHTWAVE TECHNOLOGY
卷 37, 期 21, 页码 5531-5536出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/JLT.2019.2932903
关键词
Solitons; Harmonic analysis; Couplings; Cavity resonators; Power system harmonics; Dispersion; Microcavities; Harmonic generation; Kerr combs; microresonator; single soliton generation
资金
- Wuhan Science and Technology Bureau [2018010401011297]
- National Natural Science Foundation of China [61605179]
- Fundamental Research Funds for the Central Universities, China University of Geosciences (Wuhan) [162301132703, G1323511794, CUG2018JM16]
- Experimental Technology Research Funds [SJ-201816]
The single soliton propagating in a microresonator (MRR) is characterized by a smooth spectrum. However, the number of solitons that propagate in an MRR in the anomalous dispersion regime is usually stochastic and gives rise to a complex spectrum. In this paper, we introduce a new passive mechanism based on third-harmonic-induced nonlinear coupling for the formation of a single deterministic soliton in an MRR. We show that with appropriate fundamental and third harmonic mode coupling strength and a slight phase mismatch, deterministic single soliton generation can be realized by simply scanning the detuning of a continuous wave serving as a pump. Under strong mode coupling strength, a relatively smaller wave vector mismatch within suitable range can be used for single soliton generation. Our work provides a potential approach for on-chip generation of coherent optical Kerr combs and efficient THG conversion.
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