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Effect of refractive-index profiles on two-mode optical fiber dispersion compensators

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Abstract

We evaluate the effect of refractive-index profile variations on the performance of two-mode fibers used as dispersion compensators in long-distance transmission systems operated near 1550 nm. The comparison of various profiles is carried out for two cases: (i) For a constant operating wavelength away from the LP11-mode cutoff, the step-index fiber is shown to be the best dispersion compensator. (ii) For a constant power confinement in the core (Pcore/Ptotal), a matched-cladding, power-law profile with α = 6 presents a 20% performance improvement over step-index fibers.

© 1992 Optical Society of America

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