Design and analysis of completely adiabatic tapered waveguides by conformal mapping

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

研究成果: Article同行評審

35 引文 斯高帕斯(Scopus)

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.

原文English
頁(從 - 到)403-410
頁數8
期刊Journal of Lightwave Technology
15
發行號2
DOIs
出版狀態Published - 1997 二月

All Science Journal Classification (ASJC) codes

  • 原子與分子物理與光學

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