Ultrafast all-optical temporal differentiators based on CMOS-compatible integrated-waveguide Bragg gratings

KA Rutkowska, D Duchesne, Michael Strain, R Morandotti, M. Sorel, J Azaña

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28 Citations (Scopus)


We report the first realization of integrated, all-optical first- and higher-order photonic differentiators operating at terahertz (THz) processing speeds. This is accomplished in a Silicon-on-Insulator (SOI) CMOS-compatible platform using a simple integrated geometry based on (π-)phase-shifted Bragg gratings. Moreover, we achieve on-chip generation of sub-picosecond Hermite-Gaussian pulse waveforms, which are noteworthy for applications in next-generation optical telecommunications.
Original languageEnglish
Pages (from-to)19514-19522
Number of pages9
JournalOptics Express
Issue number20
Publication statusPublished - 26 Sep 2011


  • Bragg gratings
  • photonic differentiators
  • waveforms

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