Band splitting and modal dispersion induced by symmetry braking in coupled-resonator slow-light waveguide structures

被引：2

作者：

Scheuer, J. ^{[1
]}

Shtaif, M. ^{[1
]}

机构：

[1] Tel Aviv Univ, Dept Elect Engn, IL-69978 Tel Aviv, Israel

来源：

OPTICS EXPRESS | 2010年 / 18卷 / 02期

关键词：

WHISPERING-GALLERY MODES; STORAGE; DEGENERACY;

D O I：

10.1364/OE.18.001762

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We study the dispersion relations in slow-light waveguide structures consisting of coupled microdisk resonators. A group theoretical analysis of the symmetry properties of the propagating modes reveals a fundamental phenomenon: The degeneracy of the CW and CCW rotating modes is removed, giving rise to two distinct transmission bands. This effect induces symmetry-based dispersion which may limit the usable bandwidth of such structures. The properties of this band splitting and its impact on CROW performance for optical communications are studied in detail. (C) 2010 Optical Society of America

引用

页码：1762 / 1776

页数：15

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