title: Proposal of a uniform fiber Bragg grating as an ultrafast all-optical integrator.
abstract: It is demonstrated that a uniform fiber Bragg grating (FBG) working in the linear regime inherently behaves as an optical temporal integrator over a limited time window. Specifically, the reflected temporal waveform from a weak-coupling uniform FBG is proportional to the time integral of an (arbitrary) optical pulse launched at the component input. This integration extends over a time window fixed by the duration of the squarelike temporal impulse response of the FBG. Ultrafast all-optical integrators capable of accurate operation over nanosecond time windows can be implemented using readily feasible FBGs. The introduced concepts are demonstrated by numerical simulations.
authors.affiliation: Institut National de la Recherche Scientifique - Energie, Matériaux et Télécommunications, 800 de la Gauchetière Ouest, Suite 6900, Montréal, Québec H5A 1K6, Canada. azana@emt.inrs.ca
authors.forename: José
authors.initials: J
authors.lastname: Azaña