Title :
Adiabatic method for fibres with nonseparable index profiles
Author :
Barthelemy, A. ; Arnaud, Jerome
Author_Institution :
Université de Limoges, Laboratoire d´Electronique des Microondes, CNRS ERA 535 and GRECO 11, Limoges, France
Abstract :
A new powerful numerical technique is proposed that quickly gives the propagation constants, group velocities and caustics of modes with specified numbers in multimode fibres of arbitrary 2-dimensional index profiles. This method is based on the adiabatic approximation of ray optics.
Keywords :
geometrical optics; optical fibres; optical waveguide theory; adiabatic approximation; group velocities; mode caustics; multimode optical fibres; nonseparable index profiles; propagation constants; ray optics;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19800139
