高性能注入锁相光电振荡器

发布时间：2018-01-11 20:30

本文关键词：高性能注入锁相光电振荡器　出处：《光子学报》2017年01期 　论文类型：期刊论文

【摘要】：提出一种基于注入锁定和锁相环技术的注入锁相光电振荡器.利用注入锁定来改善光电振荡器的近载频相噪以及杂散抑制度.将光电振荡器的输出信号与外注入源进行鉴相,通过锁相环来提升频率稳定性,并进一步改善光电振荡器的近载频相噪.实验结果表明:注入锁相光电振荡器在电滤波器中心频率为9.5GHz、3dB带宽为20 MHz和光纤环长度为6km的情况下,实现了输出信号频率为9.5GHz的单模振荡;当注入锁定带宽为1.98kHz时,光电振荡器输出信号在1kHz频偏处的相位噪声为-125dBc/Hz,在10kHz频偏处的相位噪声为-147dBc/Hz,杂散抑制度高于80dB,阿伦偏差接近1.37×10~(-11)@1s和1.22×10~(-11)@1000s.
[Abstract]:An injection phase-locked photoelectric oscillator based on injection locking and phase-locked loop technology is proposed. The near carrier frequency phase noise and spurious suppression degree of the optoelectronic oscillator are improved by injection locking. The output signal of the optoelectronic oscillator is injected with external injection. Source for phase detection. The phase-locked loop is used to improve the frequency stability and the near carrier frequency phase noise of the photoelectric oscillator is further improved. The experimental results show that the frequency of the injection phase-locked photooscillator is 9.5 GHz at the center of the electric filter. When the bandwidth of 3 dB is 20 MHz and the fiber loop length is 6 km, the output signal frequency is 9.5 GHz and the single mode oscillation is realized. When the injection locking bandwidth is 1.98 kHz, the phase noise of the output signal at 1 kHz frequency offset is -125 dBc / Hz. The phase noise at 10kHz frequency offset is -147dBc / Hz, and the spurious suppression is more than 80dB. The Allen deviations are close to 1.37 脳 10 ~ (-1) and 1.22 脳 10 ~ (10) -11 @ @ @ 10s.
【作者单位】：东南大学电子科学与工程学院;
【基金】：国防"十二五"预研项目国家自然科学基金项目(No.61671148)资助~~
【分类号】：TN752
【正文快照】： 0引言高频谱纯度、低相噪的微波和毫米波信号源被广泛应用于电子测量、通信、雷达等领域[1].高频谱纯度微波、毫米波信号产生的传统方法主要有两种:一种是在较低频晶振或声表面波振荡器的基础上进行倍频;另一种是利用高品质因子(Q值)的微波、毫米波谐振腔产生振荡信号,例

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