Abstract
For long-haul fiber-optic transmission systems to support multiple high speed channels wavelength-division multiplexing (WDM), is currently being deployed to achieve high-capacity. It allows information to be transmitted at different channels with different wavelength. But FWM is one of the major problems needed to be taken into account when one designs high-capacity long-haul WDM transmission system. Recently, unequal-spaced channel-allocation technique have been studied and analyzed to reduce four wave mixing (FWM) crosstalk. Finding a solution by this proposed channel allocation technique need two parameters such as minimum channel spacing and number of channel used in WDM system. To get better result minimum channel spacing has to be selected perfectly.
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