Single-soliton Microcombs Generation via Inter-mode Thermal Compensation in Si3N4 Microresonator

Soliton mode-locking in microresonator enables the generation of chip-scale coherent optical frequency combs, which has facilitated the applications of precision metrology and spectroscopy. In this work, with the assistance of inter-mode thermal compensation, we experimentally demonstrate the robust generation of the refined single solitons with solitons steps spanning more than 12GHz in a dual-mode coupled Si
3
N
4
microresonator. This technique will pave the way for straightforward and robust generation of dissipative Kerr solitons microcombs for integrated photonics systems.