Investigation of Vertical Radiation Loss for Whispering-Gallery Modes in 3-D Microresonators by FDTD Simulation

Author

Yang, Yue-De ; Huang, Yong-Zhen ; Chen, Qin

Author_Institution

Chinese Acad. of Sci., Beijing

Volume

3

fYear

2007

fDate

1-5 July 2007

Firstpage

87

Lastpage

90

Abstract

The vertical radiation loss of three-dimensional (3-D) microresonators is investigated by 3-D finite-difference time-domain (FDTD) simulation. The simulation shows that the vertical radiation causes an important loss in the microresonators with weak waveguiding, and result in decrease of the quality factors (Q-factors) of whispering- gallery (WG) modes. Through the simulation, we find that TM-like modes have much weaker vertical radiation loss than TE-like modes. High Q-factor TM-like modes are observed in the 3-D microresonators with weak vertical waveguiding, but the Q-factors of TE-like modes decrease greatly.

Keywords

Q-factor; finite difference time-domain analysis; micro-optics; microcavities; optical resonators; optical waveguides; whispering gallery modes; 3D microresonators; FDTD Simulation; Q-factors; TM-like modes; finite-difference time-domain simulation; quality factors; three-dimensional microresonators; vertical radiation loss; waveguiding; whispering-gallery modes; Finite difference methods; Microcavities; Optical filters; Optical losses; Optical resonators; Optical scattering; Q factor; Resonator filters; Time domain analysis; Whispering gallery modes; FDTD method; WG modes; microresonators; vertical radiation loss;

fLanguage

English

Publisher

ieee

Conference_Titel

Transparent Optical Networks, 2007. ICTON '07. 9th International Conference on

Conference_Location

Rome

Print_ISBN

1-4244-1249-8

Electronic_ISBN

1-4244-1249-8

Type

conf

DOI

10.1109/ICTON.2007.4296252

Filename

4296252