光电振荡器  

Optoelectronic Oscillators

作　　者：章献民[1] 金晓峰[1] 杨波[1] 池灏[1] 郑史烈[1] 

机构地区：[1]浙江大学信息与电子工程学系,杭州310027

出　　处：《微波学报》2013年第5期129-134,共6页Journal of Microwaves

基　　金：国家自然科学基金(61071059;61371029)

摘　　要：依托微波光子学的发展,光电振荡器采用光电反馈环路技术,将激光能量转换为微波信号能量,摆脱了传统微波振荡器随频率升高相噪性能会降低的限制,能以光、电两种形式输出稳定的低噪声信号,成为一种新型的高质量微波信号源。光电振荡器不仅具有一定的可调谐性能,而且能够产生频率从几GHz到上百GHz、Q值高达1010的电信号,具有广阔的应用前景,受到了广泛的关注。文章阐述了光电振荡器的研究现状,对光电振荡器的相位噪声、边模抑制、频率稳定性、频率可调谐性、高频输出、集成化等方面进行简要概括。Based on the development of microwave photonics, optoelectronic oscillator is a ring oscillator with both op- tical and electrical paths and converts light energy to microwave signal, overcoming the limitation of traditional microwave os- cillator in phase noise performance. With the ability of generating low phase noise high frequency signals in both electrical and optical domain, optoelectronic oscillators are becoming a new kind of high quality microwave signal source. The Oscilla- tion frequency can be tunable, and can cover from several gigabertz to hundreds of gigahertz with Q-factor up to 10l~. The optoelectronie oscillators have received considerable attentions due to their potential significance in applications. In this pa- per, the current situation of optoelectronic oscillators is investigated, and the phase noise, side mode suppression, frequency stability, frequency tunablility, high frequency output, and integration are discussed.

关 键 词：光电振荡器 相位噪声 宽带调谐 

分 类 号：TN752.5[电子电信—电路与系统]