Wavelength division multiplexing and demultiplexing with photonic crystal waveguide couplers

被引：274

作者：

Koshiba, M ^{[1
]}

机构：

[1] Hokkaido Univ, Div Elect & Informat Engn, Sapporo, Hokkaido 0608628, Japan

来源：

JOURNAL OF LIGHTWAVE TECHNOLOGY | 2001年 / 19卷 / 12期

关键词：

beam propagation method (BPM); finite element method; multiplexer-demultiplexer (MUX-DEMUX); photonic crystal; time-domain analysis; wavelength division multiplexing (WDM);

D O I：

10.1109/50.971693

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

A multiplexer-demultiplexer (MUX-DEMUX) based on PC waveguide couplers is proposed, and its wavelength demultiplexing properties are theoretically investigated. First, a two-channel MUX-DEMUX is designed and characterized, and then, by cascading, two stages of photonic crystal (PC) waveguide couplers with different coupling coefficients are constructed. The device sizes are expected to be drastically reduced from a scale of a few tens of micrometers to a scale of a few hundreds of micrometers in a MUX-DEMUX with a channel spacing of about 20 rim required for wide-passband wavelength division multiplexing (WWDM) systems. The simulation results are obtained using a time-domain beam propagation method (BPM) based on a finite element scheme and a simpler coupled-mode theory.

引用

页码：1970 / 1975

页数：6

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