Reliable soliton generation via detuning-phase parameter space control in self-injection-locked Kerr microcombs

【摘要】 Self-injection-locked Kerr frequency combs have attracted attention as a promising platform for integrated comb sources.Precise phase matching remains an issue for reliable soliton generation. Conventional approaches usually rely on manual manipulation of the coupling between different components, imposing challenges for photonic integration. In this work, we analyze the principle of the phase dependence of soliton generation and propose an architecture incorporating an on-chip phase shifter and a feedback control system. By characterizing the parameter space that tracks the soliton evolution dynamics, this system autonomously generates soliton states within several seconds. This architecture demonstrates potential for enabling self-starting of integrated Kerr combs in applications.更多还原

【Abstract】 Self-injection-locked Kerr frequency combs have attracted attention as a promising platform for integrated comb sources.Precise phase matching remains an issue for reliable soliton generation. Conventional approaches usually rely on manual manipulation of the coupling between different components, imposing challenges for photonic integration. In this work, we analyze the principle of the phase dependence of soliton generation and propose an architecture incorporating an on-chip phase shifter and a feedback control system. By characterizing the parameter space that tracks the soliton evolution dynamics, this system autonomously generates soliton states within several seconds. This architecture demonstrates potential for enabling self-starting of integrated Kerr combs in applications.更多还原