Design of ideal structures for lossless bends in optical waveguides by conformal mapping

Mount Learn Wu, Ping Lin Fan, Jui Ming Hsu, Ching Ting Lee

研究成果: Article同行評審

15 引文 斯高帕斯(Scopus)

摘要

In this study, we propose an ideal structure for lossless bends in optical waveguides for the first time. The ideal structure is obtained by applying a series of conformal mappings to transform a single-mode straight waveguide into the equivalent bend configuration. The expressions used to determine the waveguide path and the refractive index are derived for the lossless bends with arbitrary bend angles, even up to 90°. Also, variations in the waveguide path and the refractive index are illustrated by adopting lossless bends with six different bend angles (4, 10, 30, 45, 60, and 90°). The simulated results show that the refractive-index distribution can be controlled within the range of interest for the practical bend structure. Moreover, the characteristics of the phase front for the modal field in a lossless bend are thoroughly discussed to verify that no transmitted power would be lost by conversion to radiation modes.

原文English
頁(從 - 到)2604-2614
頁數11
期刊Journal of Lightwave Technology
14
發行號11
DOIs
出版狀態Published - 1996 十一月

All Science Journal Classification (ASJC) codes

  • 原子與分子物理與光學

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