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

Yiwei Xie, Amol Choudhary, Yang Liu*, David Marpaung, Khu Vu, Pan Ma, Duk Yong Choi, Stephen Madden, Benjamin J. Eggleton

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

36 Citations (Scopus)
1 Downloads (Pure)


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.

Original languageEnglish
Article number8772119
Pages (from-to)5246-5258
Number of pages13
JournalJournal of lightwave technology
Issue number20
Publication statusPublished - 15 Oct 2019
Externally publishedYes


  • Link performance
  • Microwave photonics
  • Noise figure
  • Photonic integrated circuits
  • stimulated Brillouin scattering


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