Thermal mode decomposition method for microresonator thermal parameters estimation

Vladislav I. Pavlov; Nikita M. Kondratyev; Artem E. Shitikov; Valery E. Lobanov

doi:10.1117/12.2686746

28 November 2023 Thermal mode decomposition method for microresonator thermal parameters estimation

Vladislav I. Pavlov, Nikita M. Kondratyev, Artem E. Shitikov, Valery E. Lobanov

Proceedings Volume 12773, Nanophotonics and Micro/Nano Optics IX; 127730O (2023) https://doi.org/10.1117/12.2686746
Event: SPIE/COS Photonics Asia, 2023, Beijing, China

Abstract

The absorption of optical power in high-Q microresonators leads to thermal effects, that strongly affect quantum and nonlinear processes. To take these effects into account, rate equations with effective thermal parameters are commonly used. Despite the convenience and simplicity of this approach, its applicability for a certain range of microresonator parameters may not be accurate enough. In our work, we compared various methods for determination of the effective thermal parameters for different resonator structures: the microring and microtorus resonator. As a result, we propose an original and effective method for determining the effective thermal parameters of microresonators based on thermal mode decomposition that considers various thermal relaxation processes. The proposed method agrees better with both direct numerical simulation and well-known theoretical formulas over the entire range of microresonator parameters, in contrast to the classical approach.

(2023) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Vladislav I. Pavlov, Nikita M. Kondratyev, Artem E. Shitikov, and Valery E. Lobanov "Thermal mode decomposition method for microresonator thermal parameters estimation", Proc. SPIE 12773, Nanophotonics and Micro/Nano Optics IX, 127730O (28 November 2023); https://doi.org/10.1117/12.2686746

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