Journal
RESULTS IN PHYSICS
Volume 54, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.rinp.2023.107062
Keywords
Soliton Microcomb; Injection-locking; Optical frequency comb
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This study demonstrates that the injection-locking scheme can effectively eliminate the temporal drift and repetition rate deviation of soliton caused by complex higher-order effects. The modulation depth plays a key role in suppressing drift, and an experimental guide for adjusting modulation depth is given. This work enriches soliton dynamics under complex higher-order effects and provides a scheme to improve the stability and controllability of microcombs.
The soliton microcomb offers a unique and compact solution for photonics applications. However, the micro-comb is suffering from the perturbations arising from complex higher-order effects such as self-steepening and third-order dispersion, leading to the temporal drift of soliton and the deviation of repetition rate. It is unfa-vorable to the stability in time and frequency domains. In this work, we numerically and theoretically demon-strate that the injection-locking scheme can effectively eliminate the soliton temporal drift and repetition rate deviation caused by complex higher-order effects. The mechanism of eliminating drift and deviation is explained, and the theoretically predicted stable soliton temporal position agrees well with the simulation. The modulation depth plays a key role in suppressing drift, and an experimental guide for adjusting modulation depth is given. This work enriches soliton dynamics under complex higher-order effects and provides a scheme to improve the stability and controllability of microcombs.
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