Wavelength division multiplexed optical communication system...

Details Wavelength division multiplexed optical communication system... Wavelength division multiplexed optical communication system...

H - Electricity

04

J

H04J 14/02 (2006.01)

Patent

CA 2331125

In a wavelength division multiplexed system, optical frequencies are assigned in accordance with a channel plan conforming to an International Telecommunications Union (ITU) grid whereby every third channel position in the grid is vacant. As a result, both four wave mixing (FWM) and cross phase modulation (XPM) are reduced using ITU standard frequencies. In addition, a low bandwidth expansion factor (BEF) can be achieved.

L'invention porte sur un système à multiplexage par division de fréquence dans lequel les fréquences sont attribuées en conformité avec la grille UIT dans laquelle toute troisième position de la grille est vacante, d'où une réduction du mélange des quatre ondes et de la modulation interphase sur les fréquences standard de l'UIT. On peut de plus parvenir à un facteur réduit d'expansion des largeurs de bande.

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