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Updated: Aug 5, 2026

Generation and Coherent Control of Pulsed Quantum Frequency Combs
Published on: June 8, 2018
Cross-phase modulation radiation between soliton and four-wave mixing states
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Cross-phase modulation (XPM) provides abundant nonlinear observations. Here, we demonstrate what we believe to be a novel XPM microcomb radiation when the microcavity has one existing soliton state and a four-wave mixing (FWM) state. Typical resonant radiation from the sideband of FWM enables the XPM microcomb formation when the sideband of FWM is in the regime for XPM-induced parametric gain. Except for the superiority of broadening the optical spectrum, typical synchronization between the soliton state and FWM could be achieved once the resonant radiation from the sideband of FWM occurs. By stabilizing the power of the sideband, we reduce the phase noise of the repetition rate for a single-soliton microcomb. Eventually, we also implement synchronization between the microwave signal and the terahertz (THz) signal. Our work provides one method for exploring soliton dynamics and stabilizing the soliton states.
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