Resumen de On the use of PML for the computation of leaky modes: An application to microstructured optical fibres

Y. Ould Agha, F. d. Zolla, A. Nicolet, S. Guenneau

• Purpose – The purpose of this paper is to present a complete analysis of leaky modes within a microstructured optical fibre (MOF). Some new numerical results illustrating the versatility and accuracy of our approach are to be given.

  Design/methodology/approach – A method involving both finite elements and perfectly matched layer (PML) is proposed.

  Findings – A rigorous definition of the leaky modes is proposed that leads to a proof of the validity of the PML approach together with a rule for the choice of the PML parameters.

  Originality/value – The choice of parameters associated with the PML are discussed in great detail. The accuracy of the constant of propagation (and especially the imaginary part) are highlighted.