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From the reflected spectrum to the properties of a fiber Bragg grating: a genetic algorithm approach with application
Federico Casagrande1, Paola Crespi, Anna Maria Grassi
1Dipartimento di Fisica dell'Universita di Milano, Istituto Nazionale di Fisica della Materia, Milan, Italy. federico.casagrande@mi.infn.it
Applied Optics
|September 5, 2002
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.