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Author Gandomkar, M. ♦ Ahmadi, V.
Source IEEE Xplore Digital Library
Content type Text
Publisher Institute of Electrical and Electronics Engineers, Inc. (IEEE)
File Format PDF
Copyright Year ©2009
Language English
Subject Domain (in DDC) Technology ♦ Engineering & allied operations ♦ Applied physics
Subject Keyword Frequency conversion ♦ Nonlinear equations ♦ Schrodinger equation ♦ Optical harmonic generation ♦ Optical frequency conversion ♦ Optical resonators ♦ Couplings ♦ Finite difference methods ♦ Optical waveguides ♦ Microcavities ♦ microring resonators ♦ second harmonic generation ♦ quasi phase matching
Abstract In this study, second harmonic generation (SHG) is studied in AlGaAs microring resonators. Efficiency of frequency conversion is investigated in single and double microring structures. The effects of input power and loss of the ring waveguide are considered. In a double microring structure, we have to take into account the effect of the generated second harmonic field, which is coupled into the next microring. It is shown that the total efficiency decreases exponentially with the loss and a low loss double microring structure provides 100% conversion efficiency with lower input power compared to a single microring structure. For this purpose, coupled nonlinear Schrödinger equations (C-NLSE) are simplified to a time invariant integrative form. This method is compared to the exact solution of C-NLSE utilizing finite difference time domain (FDTD) method.
Description Author affiliation: Department of Electrical Engineering, Tarbiat Modares University, Tehran, Iran (Gandomkar, M.; Ahmadi, V.)
ISBN 9781424448258
Educational Role Student ♦ Teacher
Age Range above 22 year
Educational Use Research ♦ Reading
Education Level UG and PG
Learning Resource Type Article
Publisher Date 2009-06-28
Publisher Place Portugal
Rights Holder Institute of Electrical and Electronics Engineers, Inc. (IEEE)
e-ISBN 9781424448272
Size (in Bytes) 266.39 kB
Page Count 4
Starting Page 1
Ending Page 4


Source: IEEE Xplore Digital Library