基于光电振荡器的低相噪光生微波技术及其应用  

Low-Phase-Noise Microwave Signal Generation Based on Optoelectronic Oscillators and Its Application

作　　者：潘时龙[1] 刘世锋[1] 朱丹[1] 杨丽[1] PAN Shi-long;LIU Shi-feng;ZHU Dan;YANG Li(Key Laboratory of Radar Imaging and Microwave Photonics,Ministry of Education,Nanjing University of Aeronautics and Astronautics,Nanjing 211106,China)

机构地区：[1]南京航空航天大学雷达成像与微波光子技术教育部重点实验室,南京211106

出　　处：《微波学报》2022年第5期54-60,共7页Journal of Microwaves

基　　金：国家自然科学基金(61971222,62271249);江苏省杰出青年基金(BK20220076);江苏省卓越博士后计划基金(2022ZB237)。

摘　　要：光电振荡器通过自振荡产生超低相位噪声微波信号,具有光、电两种输出,有望从源头突破现有雷达、电子战等射频系统性能瓶颈。文章介绍了光电振荡器的基本结构和理论模型,回顾了光电振荡器相位噪声、边模抑制比、工作频率、稳定度和小型化等关键性能提升的研究进展,并讨论了光电振荡器的功能拓展及光电振荡器在雷达等领域的应用。Optoelectronic oscillators(OEOs) generate microwave signals with ultra-low phase noise through self-oscillation, which have both optical and electrical outputs. As one of the highest-performance microwave sources, the OEO is expected to be a promising solution to improve the key performance of existing RF systems such as radars and electronic warfare systems. This paper introduces the basic structure and the theoretical models of the OEO, and overviews the research progresses to improve the key characteristics of the OEO, including phase noise, sidemode suppression ratio, frequency range, stability, and size. Studies to extend the functions of the OEO are reviewed, and its applications, especially in radar systems, are discussed.

关 键 词：光电振荡器 相位噪声 本振 任意波形产生 

分 类 号：TN752[电子电信—电路与系统] TN15