Wavelength-division multiplexing telecommunication system...

Details Wavelength-division multiplexing telecommunication system... Wavelength-division multiplexing telecommunication system...

H - Electricity

04

J

H04J 14/02 (2006.01) H04B 10/18 (2006.01)

Patent

CA 2165146

Optical telecommunication system comprising at least two sources of optical modulated signals at different wavelengths in a predetermined transmission wavelength band, means for multiplexing said signals at the inlet of a single optical fibre, an optical fibre line connected at one end to said multiplexing means, means for receiving and demultiplexing said signals, in which said line comprises an optical fibre having a chromatic dispersion value lower than a predetermined value in said transmission wavelength band and increasing with the wavelength increase, which fibre has a zero value at a wavelength lower than the minimum wavelength of said transmission wavelength band by such an amount that no local wavelength zero value of the chromatic dispersion present in the fibre and capable of generating a four-wave-mixing phenomenon, is included in said band.

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