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个人信息Personal Information
教授
博士生导师
硕士生导师
主要任职：Head, Photonics Research Center,
其他任职：辽宁省先进光电子技术重点实验室 主任
性别：男
毕业院校：比利时根特大学
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
办公地点：光仪学院厚望楼405
联系方式：Tel：0411 84706491
电子邮箱：mszhao@dlut.edu.cn
基于可调光延迟线的光子学微波频率测量
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发表时间：2011-01-01
发表刊物：发光学报
期号：9
页面范围：944-949
ISSN号：1000-7032
摘要：A photonic approach for microwave frequency measurement is proposed. A phase difference of the two microwave signals carried on two optical wavelengths is induced by a tunable dispersion medium. The interference microwave power is tuned periodically by changing dispersion value. The frequency of the microwave signal can be extracted from the period. In the proposed approach, a 7-bit optic delay line composed by 8 magneto-optical switches and 1.6 km single-mode fiber (SMF) is utilized as the tunable dispersion medium. The measurement accuracy remains within ±40 MHz over a range of 1~20 GHz. The minimum measureable power can reach to -20 dBm and the dynamic range is 45 dB.
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