独特的单向光延迟复合波导  

Unique unidirectional optical delay compound waveguide

作　　者：袁胜男 方云团[1] YUAN Shengnan;FANG Yuntuan(School of Computer Science and Telecommunication Engineering Jiangsu University, Zhenjiang 212013, China)

机构地区：[1]江苏大学计算机科学与通信工程学院,中国镇江212013

出　　处：《量子电子学报》2017年第6期754-758,共5页Chinese Journal of Quantum Electronics

摘　　要：提出一种新的机制实现光延迟,构造了含单向边界回路和单向空气波导的复合波导。电磁波传播通过边界回路时,其单向传播和干涉相长效应使电磁波绕过这些回路达到完美传输,这些回路由于增加了额外传播距离而导致光延迟。该复合波导的独特之处在于它拥有光延迟、单向传播和克服散射损耗的复合功能。频域和时域仿真分别论证了其完美传输和时间延迟功能。A new mechanism to achieve optical delay is proposed. A compound waveguide with unidirectional boundary loop and unidirectional air waveguide is constructed. When the electromagnetic wave propagates through the boundary loop, its one-way transmission and the constructive interference effect make the electromagnetic wave around these loops to achieve the perfect transmission. These loops lead to optical delay because of the enlarged propagation distance. The unique feature of the composite waveguide is that it has compound functions, such as optical delay, one-way transmission and overcoming scattering loss. The frequency-domain and time-domain simulation demonstrates the perfect transmission and time delay function, respectively.

关 键 词：波导光学 单向波导 时间延迟 传输 干涉 

分 类 号：O455[理学—无线电物理]