激光技术Issue(5)：579-585,7.DOI:10.7510/jgjs.issn.1001-3806.2014.05.001
耦合式光电振荡器的理论与实验研究
Theoretical and experimental research of coupled optoelectronic oscillators
摘要
Abstract
In order to study coupled optoelectronic oscillators ( COEO) further, the mode selection theory of COEO was expounded .The phase matching condition to maintain optimum mode-locked state was given .The affecting factors of phase noise of radio frequency signal were analyzed .The experiment of COEO based on polarization-maintaining mechanism was conducted .By adjusting the polarization-maintaining variable optical fiber delay lines in the optical ring cavity and the optoelectric microwave oscillation loop to change the cavity length , the relationship between cavity length and oscillation frequency was obtained .Meanwhile, by using the frequency discrimination method , phase noise performances of 5GHz radio frequency ( RF) signals under different operating conditions were measured and the effective factors were studied .The experimental results demonstrate that oscillation mode depends on the cavity length of optical ring cavity .Optical signal polarization, phase matching and loop length have influence on the phase noise of the RF signals . The coupled optoelectronic oscillator of 5GHz RF signal and phase noises of -136dBc/Hz at 10kHz offset frequency is obtained , whose phase noise is the lowest in our country as far as we know .关键词
光电子学/耦合式光电振荡器/振荡模式/相位匹配/保偏/相位噪声Key words
optoelectronics/coupled optoelectronic oscillator/oscillation mode/phase match/polarization-maintaining/phase noise分类
信息技术与安全科学引用本文复制引用
徐伟,金韬,池灏..耦合式光电振荡器的理论与实验研究[J].激光技术,2014,(5):579-585,7.基金项目
国家自然科学基金资助项目 （）
