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Passive optical ring network

  • US 5,448,389 A
  • Filed: 06/03/1994
  • Issued: 09/05/1995
  • Est. Priority Date: 12/22/1989
  • Status: Expired due to Fees
First Claim
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1. An optical communication network comprising:

  • a passive optical ring mesh network including a plurality of closed optical fibre loops, each loop being interconnected with at least two other loops by respective optical couplers,the loops being provided with a plurality of input/output nodes constituted by optical couplers,the nodes being so positioned, and of such a number, that the optical path length through any given pair of nodes includes n couplers where n is less than the number of nodes.

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