Chip-based Brillouin radio frequency photonic phase shifter and wideband time delay

I. Aryanfar*, D. Marpaung, A. Choudhary, Y. Liu, K. Vu, D.-Y. Choi, P. Ma, S. Madden, B.J. Eggleton

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

27 Citations (Scopus)

Abstract

We report a chip-based true-time-delay unit based on stimulated Brillouin scattering that uses an on–off Brillouin gain of 52 dB to enable 4 ns delay over a bandwidth of 100 MHz and a phase shift of ∼200°∼200°. To verify these operations, we use a two-tap microwave filter configuration and observed changes in the free spectral range of the filter and shift in the spectrum of the filter. The realization of these functionalities on chip-scale devices is critical for phased-array antennas, multibeam satellites, delay lines, arbitrary waveform generation, and reconfigurable microwave photonic filters.
Original languageEnglish
Pages (from-to)1313-1316
JournalOptics letters
Volume42
Issue number7
DOIs
Publication statusPublished - 2017
Externally publishedYes

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