Bidirectional optical networks

Reseaux optiques bidirectionnels


A wavelength division multiplexed (WDM) apparatus is provided for a bidirectional dense WDM optical fiber communication network with cost-effective and efficient allocation of the resources available at each network node. For each fiber link, the invention uses a WDM signal composed of channels propagating in opposite directions and a band optical add-drop multiplexer (OADM) to isolate or combine a band to the WDM signal spectrum. As a result, the invention significantly reduces the number fiber connections and filtering equipment required with respect to each direction of transmission.




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    WO-02063801-A1August 15, 2002Redfern Broadband Networks Pty Ltd, Redfern Broadband Networks, Inc.Optical network structure