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Third order material dispersion analysis in some types of glass optical fibres

MILAN S. KOVACEVIC1,* , ALEXANDAR DJORDJEVICH2

Affiliation

  1. University of Kragujevac, Faculty of Science, Department of Physics, R. Domanovića 12, 34000 Kragujevac, Serbia
  2. City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong

Abstract

An estimation of material dispersion is presented in some types of glass optical fibres. Using broadly applicable principles for group velocity, a simple expression is derived for material dispersion that includes the third derivative of the index of refraction with respect to the wavelength, 3 3 dn d/ λ . It is shown that material dispersion persists around the so-called zero material dispersion wavelength when 2 2 dn d/ 0 λ = , meaning that a pulse of light centred on this zero material dispersion wavelength also suffers significant dispersion, necessitating that the third order term 3 3 dn d/ λ be taken into account..

Keywords

Optical fibre, Material dispersion.

Submitted at: Jan. 5, 2012
Accepted at: April 11, 2012

Citation

MILAN S. KOVACEVIC, ALEXANDAR DJORDJEVICH, Third order material dispersion analysis in some types of glass optical fibres, Journal of Optoelectronics and Advanced Materials Vol. 14, Iss. 3-4, pp. 198-204 (2012)