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Monitoring optical decay in fiber connectivity systems

  • US 10,050,703 B2
  • Filed: 12/21/2015
  • Issued: 08/14/2018
  • Est. Priority Date: 07/11/2012
  • Status: Active Grant
First Claim
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1. An optical module through which optical signals are carried from at least one input line to a plurality of output lines, the optical module comprising:

  • a housing defining an interior, at least one input port at which the at least one input line is received, a plurality of output ports at which the output lines are received and from which the output lines are accessible from an exterior of the housing, and a single monitoring port that is separate from the input port and the output ports, wherein each output port is configured to read physical layer information from an optical connector plugged into the output port, wherein each output port is configured to direct the physical layer information to the single monitor port;

    an optical power splitter arrangement disposed within the interior of the housing, the optical power splitter arrangement including at least one optical splitter, the optical power splitter arrangement being configured to split the optical signals received at the at least one input line onto the output lines and onto a plurality of monitoring lines;

    at least one optical receiver arrangement disposed within the interior of the housing, the optical receiver arrangement being coupled to each of the monitoring lines, the optical receiver arrangement including at least one optical receiver, the optical receiver arrangement being configured to measure a power of optical signals received from the monitoring lines, the optical receiver arrangement also being configured to provide corresponding measurement signals to the single monitoring port of the housing; and

    a circuit board disposed within the housing, the circuit board electrically connecting the receiver arrangement to the single monitoring port of the housing so that the measurement signals are accessible from the exterior of the housing through the single monitoring port.

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