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En Route to Grouping-Constraint Free, Colorless Directionless ROADMs

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WSS-based ROADM architecture limits local transponder wavelengths to a grouping constraint. 3D-switch-based architecture offers powerful solution without grouping constraint. This paper presents an updated performance and cost analysis comparing WSS-based and 3D-switch-based ROADM architectures.

© 2010 IEEE Communications Society, IEEE Photonics Society, OSA, Telcordia

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