Design and analysis of completely adiabatic tapered waveguides by conformal mapping

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题名:	Design and analysis of completely adiabatic tapered waveguides by conformal mapping
作者:	Lee,CT;Wu,ML;Sheu,LG;Fan,PL;Hsu,JM
贡献者:	光電科學研究所
关键词:	CHANNEL WAVE-GUIDES;DIELECTRIC TAPERS;DISCONTINUITIES;SIZE
日期:	1997
上传时间:	2010-06-29 19:43:16 (UTC+8)
出版者:	中央大學
摘要:	In this study, we propose a novel equivalent-waveguide concept to design the completely adiabatic tapered waveguides. The optimal combination of taper shape and refractive-index distribution in such ideal structures is obtained by applying a series of conformal mappings to transform a single-mode straight waveguide into an equivalent tapered configuration. In an ideal taper the curved phase-front effect verifies the constant V-number concept is insufficient for designing a tapered waveguide. Also, the beam propagation method combined with the conformal mapping method is used to analyze the characteristics of light propagation in ideal structures. Simulation results predict that in the ideal taper a perfect mode-size conversion can be achieved adiabatically.
關聯:	JOURNAL OF LIGHTWAVE TECHNOLOGY
显示于类别:	[光電科學研究所] 期刊論文

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