Work

Deterministic generation of single dissipative Kerr solitons in a microresonator by continuous-wave triggering

Year: 2025

Type: article

Abstract: • A repeatable and systematic method for achieving deterministic CW-triggered operation of single soliton microcombs is presented. • No active scanning of either the pump wavelength or the cavity resonant frequency is required, facilitating turnkey operation • The single soliton state can be achieved by CW triggering at milliwatt level. • The ideas have opened up new horizons for improving and obtaining low-threshold on-chip soliton techniques. We propose a continuous wave (CW) triggering method for simple deterministic generation of Kerr solitons by seeding a fixed-frequency pump driven nonlinear microresonator. Single soliton frequency combs can be generated deterministically simply by adjusting the intensity and frequency offset of the trigger signal. Using numerical simulations, we have systematically investigated the dynamics and mechanism for the generation of stable Kerr solitons. We found that single soliton state can be achieved by CW triggering at milliwatt level. We also present the principle of temporal soliton generation and determine the parameter regime for stable single solitons generated by the external trigger. This work provides a new method for generating Kerr solitons in microresonators with low-threshold high repetition rate comb sources.

Source: Results in Physics

DOI: 10.1016/j.rinp.2025.108453

Authors: Wei Wu, Dongmei Huang, Jie Xu, Feng Li, P.K.A. Wai

Institutions: Hong Kong Polytechnic University, Hong Kong Baptist University

Language: English

Topic: Advanced Fiber Laser Technologies

Subfield: Atomic and Molecular Physics, and Optics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $1,920

Funders: National Natural Science Foundation of China, Research Grants Council, University Grants Committee, Innovation and Technology Fund