Title :
Temporal coupled mode theory in ring-bus-ring configuration
Author :
Zhang, Y.B. ; Darmawan, S. ; Mei, T. ; Zhang, D.H.
Author_Institution :
Nanophotonics Lab., Nanyang Technol. Univ., Singapore, Singapore
Abstract :
We develop the temporal coupled mode theory for the ring-bus-ring device by taking account of the energy-conservation. The presence of the center waveguide in the tri-coupler section of the RBR facilitates the interaction between the two side-coupled rings. The correspondence between the coupled mode theory in time and transfer matrix formalism (TMF) is established. A very good agreement is obtained between the TMF and the 2D finite-difference time-domain simulations (FDTD). Some applications using RBR device such as channel dropping filter and selective power splitter are presented.
Keywords :
coupled mode analysis; finite difference time-domain analysis; microcavities; optical beam splitters; optical filters; optical resonators; optical waveguides; 2D finite-difference time-domain simulations; channel dropping filter; energy conservation; ring-bus-ring configuration; selective power splitter; temporal coupled mode theory; transfer matrix formalism; tricoupler section; waveguide; Cavity resonators; Couplings; Filtering theory; Optical buffering; Optical filters; Optical resonators; Optical waveguides; channel dropping filter; optical splitter; ring resonator; temporal coupled mode theory;
Conference_Titel :
Advances in Optoelectronics and Micro/Nano-Optics (AOM), 2010 OSA-IEEE-COS
Conference_Location :
Guangzhou
Print_ISBN :
978-1-4244-8393-8
Electronic_ISBN :
978-1-4244-8392-1
DOI :
10.1109/AOM.2010.5713512
