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3 January 2023 Kerr soliton comb generation efficiency in microresonators and microresonator coupling rate
Nikita M. Kondratiev, Valery E. Lobanov, Steevy J. Cordette, Igor A. Bilenko
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Proceedings Volume 12323, Quantum and Nonlinear Optics IX; 1232303 (2023) https://doi.org/10.1117/12.2644033
Event: SPIE/COS Photonics Asia, 2022, Online Only
Abstract
Compact microresonator-based frequency comb sources are perspective elements of modern photonic technologies. They attract even more interest after the integrated device was demonstrated. The main disadvantage of the Kerr frequency combs is said to be the comparatively low generation power. However, this problem is not studied quite well. Previous studies concerned its dependence on the microresonator FSR, input power and coupling separately, expecting pump-to-comb efficiencies no more than five percents. Usually it is stated that the threshold power should be reduced to provide lower necessary pump and larger soliton existence range. However, the problem is quite complex as coupling also induce the changes into the loaded quality factor, threshold power and even the number of comb lines. Also more than 20% efficiency was demonstrated recently in the self-injection locking regime. Here we present the more comprehensive analysis of the comb generation efficiency optimization and show the theoretical way to reach the limit of 100%.
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Nikita M. Kondratiev, Valery E. Lobanov, Steevy J. Cordette, and Igor A. Bilenko "Kerr soliton comb generation efficiency in microresonators and microresonator coupling rate", Proc. SPIE 12323, Quantum and Nonlinear Optics IX, 1232303 (3 January 2023); https://doi.org/10.1117/12.2644033
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KEYWORDS
Solitons
Microresonators
Frequency combs
Analytics
Numerical modeling
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