Open AccessDielectric surrounding bleaches the optical bond between a microdisk resonator and a straight optical waveguide
Author(s) -
A. V. Raskhodchikov,
Sergey Scherbak,
N. V. Kryzhanovskaya,
A. A. Lipovskiĭ,
A. E. Zhukov
Publication year - 2020
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1695/1/012128
Subject(s) - whispering gallery wave , resonator , waveguide , multiphysics , coupling (piping) , dielectric , materials science , whispering gallery , optical power , slot waveguide , optics , optical force , optoelectronics , physics , photonics , silicon photonics , finite element method , laser , optical tweezers , composite material , thermodynamics
We performed a numerical study of a surrounding medium influence on coupling efficiency between a microdisk resonator supporting optical whispering gallery modes and a straight optical waveguide. Quality factors of the modes and relative optical power coupled to the waveguide were calculated using COMSOL Multiphysics environment. It was shown that the most efficient coupling takes place when propagation constants of the modes of the microdisk and the waveguide match. The coupling can be significantly strengthened by increasing the index of the surrounding medium.