title: Picosecond optical signal processing based on transmissive fiber Bragg gratings.
abstract: We report the experimental realization of an ultrafast (terahertz-bandwidth) linear optical signal processor, particularly a picosecond flat-top optical pulse shaper, based on a fiber Bragg grating (FBG) working in transmission. The used FBG design technique, based on a specially apodized linearly chirped FBG, enables the synthesis of readily feasible devices with processing bandwidths well in the terahertz range. The specific device reported here is successfully demonstrated for reshaping ultrashort (400 fs FWHM) optical Gaussian-like pulses into 2 ps flat-top pulses.
authors.affiliation: Institut National de la Recherche Scientifique—Énergie, Matériaux et Télécommunications, Montréal (QC) H5A 1K6, Canada. ruiz@emt.inrs.ca
authors.forename: María R
authors.initials: MR
authors.lastname: Fernández-Ruiz
authors.forename: Ming
authors.initials: M
authors.lastname: Li
authors.forename: Mansour
authors.initials: M
authors.lastname: Dastmalchi
authors.forename: Alejandro
authors.initials: A
authors.lastname: Carballar
authors.forename: Sophie
authors.initials: S
authors.lastname: LaRochelle
authors.forename: José
authors.initials: J
authors.lastname: Azaña