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Subcarrier-multiplexed photonic dual bus with tunable channel slotted access for local/metropolitan area networks

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Abstract

Slotted-access networks are attractive for local/metropolitan area network (LAN/MAN) use because of their simplicity and independence of the round m p delay time. However, when the total capacity of the network increases, the nodes also become more complex. Most existing LAN/MANs require all the nodes to process the entire bandwidth of the network, thus increasing the cost unnecessarily since each node may only be using a small portion of the entire bandwidth. By dividing the available bandwidth into M smaller channels using subcarrier multiplexing (SCM), and employing tunable channel access, each node will only need to process the bandwidth of one single channel, thus reducing the node complexity by a factor of M.

© 1992 Optical Society of America

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