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Storage area network extension over passive optical networks using parallel signal detection

  • US 8,200,086 B2
  • Filed: 03/07/2008
  • Issued: 06/12/2012
  • Est. Priority Date: 09/11/2007
  • Status: Active Grant
First Claim
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1. A storage area network extension, comprising:

  • a storage terminal coupled to a remote node, the remote node being connected to a passive optical network (PON) for transferring data signals in the PON and storage signals to/from the storage terminal by employing subcarrier channels in the PON to enable concurrent bidirectional transfer of the data and the storage signals, wherein the data signals are multiplexed on a baseband signal using time division multiplexing and wherein the storage signals are carried by dedicated passband signals to provide storage data security; and

    a storage area network coupled to the storage terminal and configured to store and retrieve the storage signals for transfer over the PON,wherein the PON includes an optical line terminal (OLT) configured to employ subcarrier modulation (SCM) and parallel signal detection (PSD) to enable the concurrent transmission of the data and the storage signals.

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