A Novel Scheme of Microwave Generation Based on Heterodyne Phase Locking of an OEO

A Novel Scheme of Microwave Generation Based on Heterodyne Phase Locking of an OEO
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基于OEO外差锁相的微波发生新方案

DOI:
10.1109/lpt.2016.2612879
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发表时间:
2016-11
影响因子:
2.6
通讯作者:
Zhang Xianmin
Zhang Xianmin
中科院分区:
工程技术3区
文献类型:
--
作者:
Zhu Yanhong;Jin Xiaofeng;Jin Xiangdong;Yu Xianbin;Zheng Shilie;Chi Hao;Zhang Xianmin

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提出并论证了一种基于光电子振荡器外差锁相的微波产生新方案。双环自注入锁定光电振荡器(DSILOEO)的振荡信号与压控晶体振荡器(VCXO)混频,其上变频输出由参考源锁相,形成外差锁相环。DSILOEO抑制了相位噪声,同时其频率波动被VCXO抵消,因此可以独立地实现微波产生的低相位噪声和出色的长期稳定性,这大大增加了设计灵活性。实验结果表明,在10 kHz载波偏移处,相位噪声为-122 dBc/Hz,Allan偏差为1.6 × 10-12。
A novel scheme of microwave generation based on heterodyne phase locking of an optoelectronic oscillator (OEO) is proposed and demonstrated. The oscillation signal of a dual loop self-injection-locking OEO (DSILOEO) is mixed with a voltage controlled crystal oscillator (VCXO) and its up-converted output is phase-locked by a reference source to develop a heterodyne phase-locked-loop. The DSILOEO has suppressed phase noise while its frequency fluctuation is cancelled out by the VCXO so that low phase noise and excellent long-term stability can be realized independently for microwave generation, which greatly increases the design flexibility. The experimental results show that the phase noise at 10-kHz offset carrier of -122 dBc/Hz and the Allan deviation of 1.6 × 10-12 are achieved.
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