Semi-analytic simulations of microring resonators with scattering elements
Kang, Young Mo
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https://hdl.handle.net/2142/15975
Description
Title
Semi-analytic simulations of microring resonators with scattering elements
Author(s)
Kang, Young Mo
Issue Date
2010-05-18T18:53:13Z
Director of Research (if dissertation) or Advisor (if thesis)
Goddard, Lynford L.
Department of Study
Electrical & Computer Eng
Discipline
Electrical & Computer Engr
Degree Granting Institution
University of Illinois at Urbana-Champaign
Degree Name
M.S.
Degree Level
Thesis
Keyword(s)
microring
micro-resonator
distributed bragg reflector
mirror
optical filters
optical switches
Abstract
This thesis presents theoretical and numerical simulation results of a microring resonator with a scattering element inserted. The spectral reflection of the scattering element can be engineered to realize wavelength-selective reflection for the integrated microring. In particular, a Fabry-Perot element can be used to produce reflection spectrum with a comb of peaks, whereas a carefully designed distributed Bragg grating can be inserted to realize single peak reflection at the design wavelength. Furthermore, a grating etalon can be used to obtain an ultra-narrow transmission filter or sharp cut-off mirror. The thesis will present semi-analytical solutions to easily anticipate the resultant reflection from the ring for a given scattering element. The results are presented graphically to facilitate understanding of the effects of various design parameters. The structures are candidates for compact planar wavelength-selective mirrors, filters, and switches for dense photonic integrated circuits.
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