Semi-analytic simulations of microring resonators with scattering elements

microring;micro-resonator;distributed bragg reflector;mirror;optical filters;optical switches

Kang, Young Mo ; Goddard ; Lynford L.

关键词: microring;    micro-resonator;    distributed bragg reflector;    mirror;    optical filters;    optical switches;   

Others  :  https://www.ideals.illinois.edu/bitstream/handle/2142/15975/Kang_YoungMo.pdf?sequence=1&isAllowed=y

美国|英语

来源: The Illinois Digital Environment for Access to Learning and Scholarship

【 摘 要 】

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.