期刊
PHYSICAL REVIEW A
卷 95, 期 4, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevA.95.043822
关键词
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资金
- Swiss National Science Foundation [161573]
- Defense Advanced Research Projects Agency (DARPA), Defense Sciences Office (DSO) [W31P4Q-14-C-0050]
- Air Force Office of Scientific Research, Air Force Material Command, USAF [FA9550-15-1-0099]
- European Space Technology Centre
- ESA [4000118777/16/NL/GM, 4000116145/16/NL/MH/GM]
- European Union's FP7 programme under Marie Sklodowska-Curie ITN Grant [607493]
- European Union's Horizon research and innovation programme under Marie Sklodowska-Curie IF Grant [709249]
- Marie Curie Actions (MSCA) [709249] Funding Source: Marie Curie Actions (MSCA)
Temporal-dissipative Kerr solitons are self-localized light pulses sustained in driven nonlinear optical resonators. Their realization in microresonators has enabled compact sources of coherent optical frequency combs as well as the study of dissipative solitons. A key parameter of their dynamics is the effective detuning of the pump laser to the thermally and Kerr-shifted cavity resonance. Together with the free spectral range and dispersion, it governs the soliton-pulse duration, as predicted by an approximate analytical solution of the Lugiato-Lefever equation. Yet a precise experimental verification of this relation has been lacking so far. Here, by measuring and controlling the effective detuning, we establish a way of stabilizing solitons in microresonators and demonstrate that the measured relation linking soliton width and detuning deviates by less than 1% from the approximate expression, validating its excellent predictive power. Furthermore, a detuning-dependent enhancement of specific comb lines is revealed due to linear couplings between mode families. They cause deviations from the predicted comb power evolution and induce a detuning-dependent soliton recoil that modifies the pulse repetition rate, explaining its unexpected dependence on laser detuning. Finally, we observe that detuning-dependent mode crossings can destabilize the soliton, leading to an unpredicted soliton breathing regime (oscillations of the pulse) that occurs in a normally stable regime. Our results test the approximate analytical solutions with an unprecedented degree of accuracy and provide insights into dissipative-soliton dynamics.
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