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Optical network

  • US 6,643,041 B1
  • Filed: 07/01/1999
  • Issued: 11/04/2003
  • Est. Priority Date: 07/01/1998
  • Status: Expired due to Fees
First Claim
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1. An optical network, comprising at least:

  • a plurality of pieces of transmission equipment having switching information; and

    a plurality of optical paths which connect said plurality of pieces of transmission equipment to one another;

    wherein said optical paths are used as working optical paths or protection optical paths, and wavelengths of predetermined transmission light are assigned to said optical paths to perform wavelength division multiplexing digital transmission, and said plurality of optical paths have optical paths which connect said plurality of pieces of transmission equipment in a straight chain form, and wherein the switching information includes at least numbers of working optical paths highest in importance, numbers of transmission equipment which transmitted the switching information, and switched states of the transmission equipment.

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