Abstract

The variation of the core–cladding refractive index difference Δn(λ) is determined as a function of wavelength for GeO2-SiO2, B2O3-SiO2, TiO2-SiO2, P2O5-SiO2, Al2O3-SiO2, and Cs2O-SiO2 optical fibers. The measurements are obtained by electronically processing the output of an interference microscope illuminated by a monochromatic light source variable over the 0.5–1.1-μm range. The Δn(λ) results are utilized to calculate the precise grading of the refractive index profile characterized by an exponent α(λ) required to achieve a minimum modal dispersion. The material dispersion for these compositions is also calculated with the aid of available n(λ) data for SiO2.

© 1976 Optical Society of America

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Corrections

H. M. Presby and I. P. Kaminow, "Binary silica optical fibers: refractive index and profile dispersion measurements; corrigenda," Appl. Opt. 17, 3530-3531 (1978)
https://www.osapublishing.org/ao/abstract.cfm?uri=ao-17-22-3530

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