title: From the reflected spectrum to the properties of a fiber Bragg grating: a genetic algorithm approach with application to distributed strain sensing.
abstract: We describe a genetic algorithm approach to solve an inverse problem in optics, which determines the characteristics of a fiber Bragg grating from its reflected spectrum. The validity of the proposed method is demonstrated by use of a Bragg sensor for the measurement of nonlinear strain acting on a uniaxial aluminum test specimen.
authors.affiliation: Dipartimento di Fisica dell'Universita di Milano, Istituto Nazionale di Fisica della Materia, Milan, Italy. federico.casagrande@mi.infn.it
authors.forename: Federico
authors.initials: F
authors.lastname: Casagrande
authors.forename: Paola
authors.initials: P
authors.lastname: Crespi
authors.forename: Anna Maria
authors.initials: AM
authors.lastname: Grassi
authors.forename: Alfredo
authors.initials: A
authors.lastname: Lulli
authors.forename: Robert P
authors.initials: RP
authors.lastname: Kenny
authors.forename: Maurice P
authors.initials: MP
authors.lastname: Whelan