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Bi-directional optical access network

  • US 20050259988A1
  • Filed: 11/15/2004
  • Published: 11/24/2005
  • Est. Priority Date: 05/20/2004
  • Status: Abandoned Application
First Claim
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1. A bi-directional optical access network comprising:

  • a central office that generates a plurality of wavelength-locked downstream optical signals, multiplexes the downstream optical signals, and outputs the resultant multiplexed signal; and

    a remote node that demultiplexes the multiplexed signal of the downstream optical signals output from the central office, outputs the demultiplexed downstream optical signals to a plurality of subscriber units, respectively, multiplexes upstream optical signals, and outputs the resultant multiplexed signal of the upstream optical signals to the central office, wherein the plurality of subscriber units slices an associated one of the downstream optical signals to detect a portion of the associated downstream optical signal, the plurality of subscribers generate an associated one of the upstream optical signals, which is wavelength-locked by the remaining portion of the associated downstream optical signal, and output the associated upstream optical signal to the remote node.

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