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Optical safety and connections discovery

  • US 10,397,091 B1
  • Filed: 09/17/2018
  • Issued: 08/27/2019
  • Est. Priority Date: 09/17/2018
  • Status: Active Grant
First Claim
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1. A method comprising:

  • at a first optical node of an optical communications system;

    during a signal initialization phase, receiving a first optical pattern including a prefix indicating a beginning of a signal, a first word, and a first working signal for verifying stability of a connection between the first optical node and a second optical node of the optical communications system;

    in response to the receiving, transmitting a second optical pattern including the prefix, a second word different from the first word, and the first working signal;

    after transmitting the second optical pattern, receiving a third optical pattern including the prefix, the first word, and a second working signal for verifying stability of the connection between the first optical node and the second optical node;

    determining if a duration of the second working signal is greater than a duration of the first working signal plus a predetermined time; and

    based on determining that the duration of the second working signal is greater than the duration of the first working signal plus the predetermined time, determining that the second optical node is an adjacent node of the first optical node.

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