|
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
Novel photonic broadband microwave frequency measurement based on intensity-modulated link with output microwave interference detection
点击次数：
论文类型：期刊论文
发表时间：2012-01-01
发表刊物：OPTICAL ENGINEERING
收录刊物：SCIE、EI
卷号：51
期号：1
ISSN号：0091-3286
关键字：microwave photonics; microwave frequency measurement; fiber dispersion
摘要：A novel photonic approach for measuring microwave frequency over a wide bandwidth, based on intensity-modulated link with output microwave interference detection, is proposed. In this simple measurement system, a tunable laser and a fixed-wavelength laser are used with a single-mode fiber as the dispersive medium. By scanning the wavelength of a tunable laser, the frequency of the modulated microwave signal can be obtained directly through analyzing the interference intensity of the microwave signal at the output of the photodetector. The proposed approach is demonstrated experimentally by obtaining the unknown microwave frequency in the range of 1 to 20 GHz with a measurement accuracy of several tens of MHz. (C) 2012 Society of Photo-Optical Instrumentation Engineers (SPIE). [DOI: 10.1117/1.OE.51.1.019001]