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A model-based parameter estimation approach for numerical analysis of single-mode optical fibers

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4 Author(s)
Fiumara, V. ; DIIIE, Salerno Univ., Italy ; Galdi, V. ; Pierro, V. ; Pinto, I.M.

An efficient numerical method is proposed and implemented for the analysis of propagation characteristics of single-mode optical fibers with arbitrary refractive index profile. The method follows the concept of the so-called model-based parameter estimation, and the Pade algorithm is used to construct a low-order rational approximant of the spectral domain Green's function, obtained by solving a hierarchy of static problems. The sought eigenfrequency and field distribution are then estimated by computing, respectively, the dominant pole and the related residual of the rational approximant. A number of profiles are analyzed and experiments show that very accurate results can be cheaply obtained through this technique

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Lightwave Technology, Journal of  (Volume:17 ,  Issue: 4 )