title: Enhancement of the sensitivity of a temperature sensor based on fiber Bragg gratings via weak value amplification.
abstract: We present a proof-of-concept experiment aimed at increasing the sensitivity of Fiber-Bragg-gratings temperature sensors by making use of a weak-value-amplification scheme. The technique requires only linear optics elements for its implementation and appears as a promising method for increasing the sensitivity than state-of the-art sensors can currently provide. The device implemented here is able to generate a shift of the centroid of the spectrum of a pulse of ∼0.035  nm/°C, a nearly fourfold increase in sensitivity over the same fiber-Bragg-grating system interrogated using standard methods.
authors.forename: L J
authors.initials: LJ
authors.lastname: Salazar-Serrano
authors.forename: D
authors.initials: D
authors.lastname: Barrera
authors.forename: W
authors.initials: W
authors.lastname: Amaya
authors.forename: S
authors.initials: S
authors.lastname: Sales
authors.forename: V
authors.initials: V
authors.lastname: Pruneri
authors.forename: J
authors.initials: J
authors.lastname: Capmany
authors.forename: J P
authors.initials: JP
authors.lastname: Torres