Simple approach to calculate the refractive index profile of ion-exchanged waveguides (Articolo in rivista)

Type
Label
  • Simple approach to calculate the refractive index profile of ion-exchanged waveguides (Articolo in rivista) (literal)
Anno
  • 2005-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1117/1.1914802 (literal)
Alternative label
  • S. Sebastiani, S. Berneschi, M. Brenci, G. Nunzi Conti, S. Pelli, G. C. Righini (2005)
    Simple approach to calculate the refractive index profile of ion-exchanged waveguides
    in Optical engineering (Bellingham, Print)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • S. Sebastiani, S. Berneschi, M. Brenci, G. Nunzi Conti, S. Pelli, G. C. Righini (literal)
Pagina inizio
  • 54602- (literal)
Pagina fine
  • 54602- (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 44(5) (literal)
Rivista
Note
  • Scopu (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • Istituto di Fisica Applicata \"Nello Carrara\" - CNR - Firenze (literal)
Titolo
  • Simple approach to calculate the refractive index profile of ion-exchanged waveguides (literal)
Abstract
  • In graded-index glass waveguides a key factor for the design of components and devices is usually the accurate determination of the refractive index profile as a function of depth. The problem of reconstructing the index profile using the measured effective refractive indices has been faced by several authors. Here we suggest a new expression linear combination of two analitical functions, which is able to provide a good approximation of the solution of the differential equation thath rules the thermal diffusion process. The use of this equation, in connection with the general approach of inverting the Wentzel-Kramer-Bruilloin (WKB) eigenvalue equation, leads to a simple, fast and accurate computation of the refractive index profile obtained by ion exchange.The application of the method to various Ag-echanged waveguides in different glass matrices, with better accuracy than most of the usual procedures, has been demonstrated. (literal)
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