From the reflected spectrum to the properties of a fiber Bragg grating: a genetic algorithm approach with application to distributed strain sensing.
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.
Casagrande
Federico
F
Dipartimento di Fisica dell'Universita di Milano, Istituto Nazionale di Fisica della Materia, Milan, Italy. federico.casagrande@mi.infn.it
Crespi
Paola
P
Grassi
Anna Maria
AM
Lulli
Alfredo
A
Kenny
Robert P
RP
Whelan
Maurice P
MP