Out-of-plane losses of line-defect photonic crystal waveguides

被引：40

作者：

Hadley, GR ^{[1
]}

机构：

[1] Sandia Natl Labs, Albuquerque, NM 87185 USA

来源：

IEEE PHOTONICS TECHNOLOGY LETTERS | 2002年 / 14卷 / 05期

基金：

美国能源部;

关键词：

finite-difference methods; Helmholtz equations; optical losses; optical waveguide;

D O I：

10.1109/68.998711

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 numerical model is presented for computing the out-of-plane losses of a general class of two-dimensional photonic crystals superimposed onto a slab confinement structure. The usefulness of this model is demonstrated by calculating the propagation loss of a single-row-defect waveguide composed of hexagonal air holes etched into two different slab structures. The results are interpreted in terms of a simple coupied-mode-theory picture in which loss is due to resonant coupling between the fundamental and certain radiative slab modes. These calculations show that low-loss photonic crystal waveguides should be possible by carefully designing the slab waveguide.

引用

收藏

页码：642 / 644

页数：3

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