Wdm transmission system

Details Wdm transmission system Wdm transmission system

H - Electricity

04

J

H04J 14/02 (2006.01) H04B 10/17 (2006.01) H04B 10/18 (2006.01)

Patent

CA 2409611

The invention relates to a WDM transmission system enabling high-speed and large-capacity optical transmission over the long haul. The WDM transmission system includes an optical transmission line for transmitting WDM signals in four or more channels with a channel spacing therebetween of not more than 0.4 nm and a bit rate of not less than 9 Gbit/s, and the optical transmission line has, as characteristics at a wavelength of 1.55 µm, a chromatic dispersion with an absolute value is 8-16 ps/nm/km and a ratio (n2/A eff), which is a ratio of a nonlinear refractive index n2 to an effective area A eff, of not more than 6.4 × 10-10/W.

Cette invention concerne un système de transmission par multiplexage en longueur d'onde (WDM) permettant de transmettre un fort volume d'informations à débit élevé et sur une grande distance. Ce système de transmission comprend une ligne de transmission optique pour la transmission de signaux WDM de plus de trois canaux avec intervalles entre canaux de 0,4 nm ou moins à un débit de 9 Gbits ou plus. A une longueur d'onde de 1,55 mu m, la ligne de transmission optique se caractérise par une dispersion en longueur d'onde de 8-18 ps/nm/km et un rapport N2/Aeff de 6,4x10<10>/W ou moins entre un indice de réfraction non linéaire N2 et une section effective de Aeff.

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