Passive optical network with bi-directional optical spectral sli

Optical: systems and elements – Deflection using a moving element – Using a periodically moving element

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359118, 359127, 359168, H04B 1000, H04B 1008, H04J 1402

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active

056802340

ABSTRACT:
A passive optical network is provided that spectrally slices optical signals transmitted in both upstream and downstream directions utilizing wavelength division multiplexing routing. The passive optical network preferably includes a broadband optical signal source at both ends to provide signals that are spectrally sliced according to optical frequency. The downstream information may be transmitted in a conventional data format. The upstream transmissions may be segregated by subcarrier multiplexing, time scheduling or wavelength division multiplexing. At the subscriber end of the network there is an optical network unit which includes a device coupling the downstream fiber to the upstream fiber. Such coupling allows the passive optical network to perform enhanced diagnostic tests.

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Wagner, S.S., et al., "Experimental Demonstration of a Passive Optical Subscriber Loop Architecture," Electronic Letters, An International Publication, vol. 24, No. 6, Mar. 17, 1988, pp. 344-346.
Reeve, M.H., et al., "LED Spectral Slicing for Single-Mode Local Loop Applicaations," Electronic Letters, An International Publication, vol. 24, No. 7, Mar. 31, 1988, pp. 389-390.
Iannone, P.P., et al., "WDM passive-optical-network architecture with bidirectional optical sppectral slicing," Technical Digest from OFC'95, Feb. 26-Mar. 3, 1995, San Diego, Ca., pp. 51-53.

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