Optimization of Pulley-Type Ring Resonator with Waveguide Offset

In this work, we dealt with the optimization of the pulley-type ring resonator using the offset of the straight input and output waveguide at the junction with the curved waveguide. We adopted the finite-difference time-domain method to simulate the structure. It was found that the coupling loss cou...

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Detalles Bibliográficos
Autores principales: Yen, Meng-Hua, Feng, Pei-Yu, Lin, Chu-En, Chen, Chii-Chang, Chang, Jenq-Yang
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2018
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6187597/
https://www.ncbi.nlm.nih.gov/pubmed/30424159
http://dx.doi.org/10.3390/mi9050226
Descripción
Sumario:In this work, we dealt with the optimization of the pulley-type ring resonator using the offset of the straight input and output waveguide at the junction with the curved waveguide. We adopted the finite-difference time-domain method to simulate the structure. It was found that the coupling loss could be significantly reduced and the critical coupling could be precisely tuned. This results in the possibility of the Q-factor being higher than that of the structure without waveguide offset. In this study, the Q-factor of the ring resonator is increased from 9180 to 11,302. The corresponding enhancement is 23.1%.

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