Generation of an ultra low phase noise and highly stable optoelectronic oscillator signal using an Injection-locked Technique

Zhou Zhenghua,Zhang Zhizhong,Yang Chun,Chong Yuhua,Cao Zhewei

doi:10.1109/apmc.2015.7413333

Generation of an ultra low phase noise and highly stable optoelectronic oscillator signal using an Injection-locked Technique

Zhou Zhenghua, Zhang Zhizhong + Show 3 more

https://doi.org/10.1109/apmc.2015.7413333

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Publication Date: Dec 1, 2015

Citations: 7

Affiliation: Southeast University

#Injection-locked Technique #Optoelectronic Oscillator + Show 8 more

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Abstract

A new approach for the design of an optoelectronic oscillator (OEO) based on an injection-locked (IL) technique is introduced. In the IL OEO, a highly stable microwave reference resource can be used as external frequency reference in IL for side mode suppression and phase noise reduction at low offset frequencies relative to a free running oscillator. With the proposed method, we obtained a highly stable 9.5 GHz microwave signal with the phase noise level of −125 dB/Hz at 1 kHz offset frequency, −143 dBc/Hz at 10 kHz offset frequency, the side mode suppression ratio (SMSR) is larger than 40 dB.

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