title: Ultrafast all-optical temporal differentiators based on CMOS-compatible integrated-waveguide Bragg gratings.
abstract: 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.
authors: INRS-EMT, 1650 Boulevard Lionel Boulet, Varennes, Québec, J3X 1S2, Canada. kasia@if.pw.edu.pl
authors: K A
authors: KA
authors: Rutkowska
authors: D
authors: D
authors: Duchesne
authors: M J
authors: MJ
authors: Strain
authors: R
authors: R
authors: Morandotti
authors: M
authors: M
authors: Sorel
authors: J
authors: J
authors: Azaña
mesh_terms: D003198:Computer Simulation; D017076:Computer-Aided Design; D004867:Equipment Design; D008027:Light; D008962:Models, Theoretical; D055095:Optics and Photonics / Q000295:instrumentation*; D012031:Refractometry / Q000295:instrumentation*; D012542:Scattering, Radiation; D013685:Telecommunications / Q000295:instrumentation*