Title :
Comments on “Fiber spot size: a simple method of calculation”
Author :
Wang, Z.H. ; Meunier, J.-P.
Author_Institution :
Lab. Traitement du Signal et Instrum., Univ. Jean Monnet, Saint-Etienne, France
fDate :
7/1/1995 12:00:00 AM
Abstract :
The paper by R. L. Gallawa, J. Lightwave Technology, vol. 1, p. 192, 1993; describes the use of Ritz-Galerkin method for evaluating single mode fiber parameters e.g.: spot size, launch efficiency integral and far-field distribution; that require the integration of the modal field over an infinite cross-section. To sum up, although the numerical results in the paper are correct they have been obtained in a manner which leads to an intricate technique to compute single mode parameters
Keywords :
Galerkin method; integral equations; laser beams; laser modes; optical fibre theory; Ritz-Galerkin method; far-field distribution; fiber spot size calculation; infinite cross-section; intricate technique; launch efficiency integral; modal field integration; numerical results; single mode fiber parameters; single mode parameter computation; Computer languages; Difference equations; Eigenvalues and eigenfunctions; Electron optics; Instruments; Optical fiber losses; Polynomials; Propagation constant; Refractive index; Vectors;
Journal_Title :
Lightwave Technology, Journal of
