Cross-sectional shape optimization of whispering-gallery ring resonators

Akihiro Takezawa, Mitsuru Kitamura

研究成果: Article査読

7 被引用数 (Scopus)

抄録

Optimal cross-sectional shapes of whispering-gallery ring resonators with prescribed emission wavelength and resonance mode are generated using topology optimization based on the finite element method. The two critical performance indices, the quality factor (Q factor) and mode volume of a resonator, are treated as the objective functions in the optimization. In our numerical study, characteristics of optimal configurations are identified and analyzed. Since the Q factor and mode volume have a trade-off relationship, i.e., an increasing Q factor increases mode volume, a Pareto-optimal set of solutions can be identified under certain device specifications. These configurations achieve better performances than existing shapes in producing both a high Q factor and low mode volume.

本文言語English
論文番号6235968
ページ(範囲)2776-2782
ページ数7
ジャーナルJournal of Lightwave Technology
30
17
DOI
出版ステータスPublished - 2012 9 1
外部発表はい

ASJC Scopus subject areas

  • 原子分子物理学および光学

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