Wavelength demultiplexer using the spatial dispersion of multilayer thin-film structures

被引：50

作者：

Gerken, M ^{[1
]}

Miller, DAB ^{[1
]}

机构：

[1] Stanford Univ, Edward L Ginzton Lab, Stanford, CA 94305 USA

来源：

IEEE PHOTONICS TECHNOLOGY LETTERS | 2003年 / 15卷 / 08期

关键词：

dispersive media; nanotechnology; nonhomogeneous media; wavelength-division multiplexing;

D O I：

10.1109/LPT.2003.815318

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：

We demonstrate that a single 66-layer nonperiodic thin-film stack can be used to separate four wavelength channels by spatial beam shifting. This device uses group velocity effects similar to the superprism effect observed in photonic crystals, but shows larger and more controlled shifts including constant dispersion allowing for equidistant channel spacing. Experimentally, a nearly linear 100-mum shift is achieved between 827 and 841 nm. System considerations are discussed.

引用

页码：1097 / 1099

页数：3

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