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Revista mexicana de física
versión impresa ISSN 0035-001X
Resumen
CASTRO, E.; MARTIN, P.; PUERTA, J. y CERECEDA, C.. Guided-wave modes in graded-index optical fibers by two-point quasi-rational approximants. Rev. mex. fis. [online]. 2006, vol.52, n.2, pp.120-128. ISSN 0035-001X.
Approximated analytic solutions for wave propagation in graded-index optical fiber have been found in the case of a parabolic profile. Approximants with high accuracy are presented that are much better than those found by other authors. A two-point quasi-rational method and two-point Pade approximants are used in this work. The approximants are explicitly determined for the azimuthal eigenvalues l = 0,1,2 and the mth mode numbers m = 0,1, 2, 3.
Palabras llave : Two-point quasi-rational approximants; graded-index fibres; waveguide propagation; eigenmode analysis.