The transmission characteristics of a kind of chiral fiber Bragg gratings

被引：0
|
作者：
Li, Junqing [1 ]
Cao, Yusheng [1 ]
Mu, Ruiyi [1 ]
机构：
[1] Harbin Inst Technol, Dept Phys, Harbin 150001, Peoples R China
来源：
OPTOELECTRONIC DEVICES AND INTEGRATION III | 2010年 / 7847卷
关键词：
Chiral fiber; coupled mode theory; fiber Bragg grating (FBG);
D O I：
10.1117/12.869957
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：
In this paper, we present the transmission characteristics of a kind of chiral fiber gratings, in which the permittivity of a length of chiral fiber is periodically distributed in sinusoidal style. We expand the coupled mode theory for traditional waveguide to the form of suitable for analysis of mode coupling in chiral waveguide. The different filtering characteristics for RCP and LCP modes are investigated. It is concluded that the chirality may induce the separation for both modes as well as the profile of filtering characteristics with respect to the achiral case. The larger the chirality is the wider the RCP and LCP separate.
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页数：7
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