Interaction of Continuous Waves and Laser Cavity-Solitons in Micro-Resonators: Enhancing Stability

We explore the nonlinear emergence and recovery of a bonded state consisting of a soliton and a continuous wave (CW), with the soliton being red-detuned and the CW blue-detuned relative to the microcavity resonance slopes. Our findings demonstrate that the blue-detuned CW and soliton form in distinct regions of the erbium laser spectrum, where the slow resonant nonlinearity of the amplifier exhibits a different sign. Real-time measurements using Dispersive Fourier Transform (DFT) reveal an elastic bonding between these states, mediated by the system’s modal structure and slow nonlinearities. This study provides crucial insights into the dynamic interaction of complex laser states and suggests potential enhancements to the stability of solitary regimes.