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Concept for individual channel polarization control in a WDM signal using an integrated device

A device that can be used for channel individual polarization controlling in WDM systems is proposed. The design concept is suitable for implementation in thermo optic material like silicon. PLC technology, is preferred due to overall cost efficiency and space reduction. Here we propose such an integrated WDM polarization controller and show how it can be formed from existing device designs, which are based on arrayed waveguide grating (AWG) filters.