FIBRE DE COMPENSATION DE LA DISPERSION CHROMATIQUE

摘要

An optical transmission system over a given spectral band comprises an optical transmission fiber of length L 0 , a chromatic dispersion and a slope of the chromatic dispersion and at least two chromatic dispersion compensating fibers (DCF i ) of length (L i ), chromatic dispersion D i and slope of the chromatic dispersion S i . The dispersion compensating fibers substantially verify the following equations at a median wavelength (» 0 ) of the given spectral band: D 0 » 0 ‹ L 0 + ˆ‘ i D i » 0 ‹ Li = 0 ps / nm S 0 » 0 ‹ L 0 + ˆ‘ i S i » 0 ‹ Li = 0 ps / nm 2 At least two of the dispersion compensating fibers having values for the slope of the slope of the dispersion SS i of opposite signs in order to minimize the absolute value of the residual chromatic dispersion.