Broadband circulators based on directional coupling of one-way waveguides

被引：58
|
作者：
Qiu, Wenjun [1 ]
Wang, Zheng [1 ]
Soljacic, Marin [1 ]
机构：
[1] MIT, Dept Phys, Cambridge, MA 02139 USA
来源：
OPTICS EXPRESS | 2011年 / 19卷 / 22期
基金：
美国国家科学基金会;
关键词：
MAGNETOOPTICAL PHOTONIC CRYSTALS; OPTICAL CIRCULATOR; SEMICONDUCTORS;
D O I：
10.1364/OE.19.022248
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Resonator-based optical circulators are fundamentally bandwidth-limited by their quality factors. We propose a new type of circulator based on directional coupling between one-way photonic chiral edge states and conventional two-way waveguides. The operational bandwidth of such circulators is tied to the bandwidth of the directional waveguide coupler and has the potential for simultaneous broadband operation and small device footprint. (C)2011 Optical Society of America
引用
收藏
页码：22248 / 22257
页数：10
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