System-Level Performance of Chip-Based Brillouin Microwave Photonic Bandpass Filters

Microwave photonic (MWP) filters using on-chip stimulated Brillouin scattering offer great potential for next-generation radio frequency (RF) applications due to the unprecedented high spectral resolution, flexible programmability, and ultra-wideband frequency agility. Although impressive functional...

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Bibliographic Details
Published in:Journal of lightwave technology 2019-10, Vol.37 (20), p.5246-5258
Main Authors: Xie, Yiwei, Choudhary, Amol, Liu, Yang, Marpaung, David, Vu, Khu, Ma, Pan, Choi, Duk-Yong, Madden, Stephen, Eggleton, Benjamin J.
Format: Article
Language:English
Subjects:
Amplification
Amplitude modulation
Band-pass filters
Bandpass filters
Link performance
Microwave filters
Microwave photonics
noise figure
Numerical models
Optical fiber filters
Performance enhancement
photonic integrated circuits
Radio frequency
Scattering
Spectral resolution
stimulated Brillouin scattering
Ultrawideband
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Summary:Microwave photonic (MWP) filters using on-chip stimulated Brillouin scattering offer great potential for next-generation radio frequency (RF) applications due to the unprecedented high spectral resolution, flexible programmability, and ultra-wideband frequency agility. Although impressive functionalities have been reported, limited link performance, due to the amplification noise induced by the Brillouin gain process, hinders the practical deployment in existing RF applications. In this paper, we present the first comprehensive numerical and experimental study of chip-based Brillouin MWP bandpass filters implemented in a range of link configurations. In the experiments, key RF performance figures of merit, including link gain, noise figure, passband resolution, bandwidth tunability, and passband extinction of chip-based Brillouin filters are experimentally investigated and numerically analyzed. This comprehensive study points out a preferable filter scheme with optimized system-level performance. The numerical model developed in this paper allows for extrapolations to further improve the performance. The systematic work establishes a feasible design route for achieving high link-performance chip-based Brillouin microwave photonic bandpass filters.
ISSN:0733-8724
1558-2213
DOI:10.1109/JLT.2019.2931077