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US Patent 11272269 Integrated band splitter for scaling dual-band ROADM

Patent 11272269 was granted and assigned to Ciena Corporation on March, 2022 by the United States Patent and Trademark Office.

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Patent abstract

Systems and methods for integrated band splitter for scaling a dual band Reconfigurable Optical Add/Drop Multiplexer (ROADM). A degree in a ROADM includes ROADM components including a line port and a plurality of connection ports; channel multiplexer/demultiplexer components including degree ports and local add/drop ports; and one or more band splitters in between the ROADM components and the channel multiplexer/demultiplexer components. The band splitter can be configured to split/combine C-band spectrum and L-band spectrum. The band splitter can be a passive fiber device.

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