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

Katarzyna A. Rutkowska | Zendy; D. Duchesne | Zendy; Michael J. Strain | Zendy; Roberto Morandotti | Zendy; Marc Sorel | Zendy; José Azaña | Zendy

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

Author(s) -

Katarzyna A. Rutkowska,

D. Duchesne,

Michael J. Strain,

Roberto Morandotti,

Marc Sorel,

José Azaña

Publication year - 2011

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.19.019514

Subject(s) - optics , ultrashort pulse , fiber bragg grating , apodization , waveguide , optoelectronics , picosecond , photonics , differentiator , materials science , terahertz radiation , photonic integrated circuit , cmos , bandwidth (computing) , physics , laser , computer science , telecommunications

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.

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