Errors of optical fiber chromatic dispersion calculation caused by line approximation of silica glass refraction index as a function of dopant concentration

Abstract

Errors of optical fiber chromatic dispersion calculation caused by line approximation of silica glass refraction index as a function of dopant concentration are investigated. Calculation of chromatic dispersion for fibers with refractive index profiles, for which experimental data of chromatic dispersion are known, is performed by an investigated method. Errors of chromatic dispersion calculation are estimated by deviation evaluated results from data of measuring for samples of optical fiber. On the basis of the comparative analysis the estimation of adequacy of the cosidered method is given.