TY - JOUR

T1 - Theory of nonlinear whispering-gallery-mode dynamics in surface nanoscale axial photonics microresonators

AU - Kolesnikova, Alena Yu

AU - Vatnik, Ilya D.

N1 - The study was supported by the Russian Science Foundation (Grant No. 22-12-20015) and by the Government of the Novosibirsk Region.

PY - 2023/9

Y1 - 2023/9

N2 - We present a comprehensive model describing the Kerr nonlinear dynamics of an electric field in a cylindrical microresonator with a small effective radius variation, known as a surface nanoscale axial photonics (SNAP) device. The proposed system of equations for coupled azimuthal modes takes into account full azimuthal dispersion as well as the impact of the radiation source on the microresonator parameters. The model comprises coupling coefficients determined experimentally and appears to be a powerful tool for studying nonlinear effects, including the generation of axial-azimuthal modes and optical frequency comb generation in SNAP devices. We highlight the features of nonlinear dynamics that are specific to the SNAP platform and illustrate the power of the proposed model with optimization of the coupling point of the light source, getting two-orders-of-magnitude improvement for the nonlinear threshold.

AB - We present a comprehensive model describing the Kerr nonlinear dynamics of an electric field in a cylindrical microresonator with a small effective radius variation, known as a surface nanoscale axial photonics (SNAP) device. The proposed system of equations for coupled azimuthal modes takes into account full azimuthal dispersion as well as the impact of the radiation source on the microresonator parameters. The model comprises coupling coefficients determined experimentally and appears to be a powerful tool for studying nonlinear effects, including the generation of axial-azimuthal modes and optical frequency comb generation in SNAP devices. We highlight the features of nonlinear dynamics that are specific to the SNAP platform and illustrate the power of the proposed model with optimization of the coupling point of the light source, getting two-orders-of-magnitude improvement for the nonlinear threshold.

UR - https://www.scopus.com/record/display.uri?eid=2-s2.0-85173045259&origin=inward&txGid=505b9cee851066c6bdde2f37fb4a6eb1

UR - https://www.mendeley.com/catalogue/f2d822cd-2021-33b7-a4eb-b22193b285d4/

U2 - 10.1103/PhysRevA.108.033506

DO - 10.1103/PhysRevA.108.033506

M3 - Article

VL - 108

JO - Physical Review A

JF - Physical Review A

SN - 2469-9926

IS - 3

M1 - 033506

ER -