韩秀友

个人信息Personal Information

教授

博士生导师

硕士生导师

主要任职:光电工程与仪器科学学院副院长

性别:男

毕业院校:中国科学院上海光学精密机械研究所

学位:博士

所在单位:光电工程与仪器科学学院

学科:光学工程. 测试计量技术及仪器. 通信与信息系统

联系方式:电话:0411-84706251

电子邮箱:xyhan@dlut.edu.cn

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Influence of coupling conditions on the time delay characteristics of parallel-cascaded optical waveguide ring resonators

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论文类型:期刊论文

发表时间:2013-03-01

发表刊物:OPTIK

收录刊物:SCIE、EI

卷号:124

期号:5

页面范围:377-384

ISSN号:0030-4026

关键字:Microwave photonics; Optical beamforming network; True time delay line; Waveguide ring resonator

摘要:The influence of coupling conditions of parallel-cascaded waveguide ring resonators on the time delay application in the optically phased array antennas is analyzed. Two kinds of coupling conditions, over-coupling and restriction free are considered to achieve a certain target delay time by parallel-cascaded three ring resonators. The results show that the restriction free coupling condition is better than the over-coupling one to obtain a flat time delay response in the target delay bandwidth especially for the small target delay time, which is the advantage of ring-resonator-based tunable true time delay line. The influence of round-trip loss on the time delay response and the transmission amplitude response is also investigated, which indicates that ring resonators with low optical round-trip loss are preferred to achieve a high performance true time delay line. (C) 2012 Elsevier GmbH. All rights reserved.