Title :
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
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;
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
DOI :
10.1109/ICTON.2007.4296252
