Abstract
Single soliton micro-comb (SMC) provides a tool for nonlinear optics investigation, and has become a novel integrated coherent source for portable optical clock, precise measurement and massive parallel optical communication systems, etc. Here, we demonstrate a new approach for deterministic single soliton generation in a microresonator. The microresonator is pumped at a mode with a frequency shift of −160 MHz due to the avoided mode-crossing (AMX), which enhances the local dispersion to form native mode spaced (NMS) Turing pattern directly. The Turing pattern provides a potential field to capture and sustain single soliton. Moreover, the high power chaotic microcomb is absent, which enables stable accessing of single SMC state. Our experiment presents a different dynamics of single soliton generation, which paves a new way for stable and deterministic single soliton micro-comb formation for practical applications.
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