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Genetic algorithm-based characterization of the optical properties of flame-hydrolysis deposited silica waveguides

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4 Author(s)
Garcia-Blanco, S. ; Inst. Tecnologico de Informatica, Univ. Politecnica de Valencia, Spain ; Alfaro-Cid, E. ; De La Rue, R.M. ; Aitchison, J.S.

Genetic algorithms have been demonstrated to be a robust method for the calculation of the refractive-index profile of annealed germanium-doped flame-hydrolysis deposited (FHD) silica layers using measurements of the effective refractive indexes of the different modes of propagation. A nonuniform refractive-index profile in depth was obtained, which agrees well with the germanium concentration and density profiles measured for the films.

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Lightwave Technology, Journal of  (Volume:22 ,  Issue: 12 )