Spurious Suppression in Millimeter-Wave OEO With a High- Q Optoelectronic Filter

A millimeter-wave optoelectronic oscillator with low phase noise and low spurs employing ultrahigh Q optoelectronic hybrid band-pass filter is proposed. The 1-MHz pass-band filter in 29.99 GHz with Q value of 30000 has been demonstrated. Based on this ultranarrow band-pass filter, a 29.99-GHz millim...

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Bibliographic Details
Published in:IEEE photonics technology letters 2017-10, Vol.29 (19), p.1671-1674
Main Authors: Liu, Anni, Liu, Jingliang, Dai, Jian, Dai, Yitang, Yin, Feifei, Li, Jianqiang, Zhou, Yue, Zhang, Tian, Xu, Kun
Format: Article
Language:English
Subjects:
Band-pass filters
Bandpass filters
Microwave filters
Millimeter wave technology
Noise levels
Optical fiber filters
optoelectronic hybrid band-pass filter
Optoelectronic oscillators
Optoelectronics
Phase noise
Radio frequency
spurious suppression
ultrahigh Q
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Summary:A millimeter-wave optoelectronic oscillator with low phase noise and low spurs employing ultrahigh Q optoelectronic hybrid band-pass filter is proposed. The 1-MHz pass-band filter in 29.99 GHz with Q value of 30000 has been demonstrated. Based on this ultranarrow band-pass filter, a 29.99-GHz millimeter-wave signal with the spurious suppression ratio more than 83 dB is successfully generated. Besides, the single-sideband phase noise is about -113 dBc/Hz at 10-kHz offset frequency.
ISSN:1041-1135
1941-0174
DOI:10.1109/LPT.2017.2742662