A tunable photonic RF notch filter based on opto-VLSI technology

Rong Zheng*, Kamal E. Alameh, Zhenglin Wang

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)


In this paper, we propose a novel tunable transversal photonic RF notch filter based on opto-VLSI technology. By using an array of fiber Bragg gratings (FBGs) in conjunction with an opto-VLSI processor, the broadband light source can be spectrally sliced and attenuated, hence realizing a two-tap RF notch filler with stepwise true-time delays and variable weights. In addition, the free spectral frequency and notch depth of the RF notch filter can be tuned by driving the opto-VLSI processor with optimized phase-only holograms. We experimentally demonstrate the proposed tunable RF notch filter structure and the results show that a notch depth greater than 40 dB can be attained.

Original languageEnglish
Pages (from-to)1011-1015
Number of pages5
JournalMicrowave and Optical Technology Letters
Issue number6
Publication statusPublished - 1 Jun 2006
Externally publishedYes


  • Fiber Bragg grating
  • Optical delay lines
  • Opto-VLSI processor
  • Photonic signal processing


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