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Technique for remote power feeding in access networks

  • US 8,963,367 B2
  • Filed: 12/28/2011
  • Issued: 02/24/2015
  • Est. Priority Date: 12/30/2010
  • Status: Active Grant
First Claim
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1. A method for power feeding a common element being a bidirectional block of optical amplifiers serving a first plurality of subscriber devices of an optical access network via optical fibers, the method comprises:

  • providing the first plurality of the subscriber devices with respective local batteries and lasers for transmitting power to the common element at respective optical wavelengths;

    selecting a second plurality of subscriber devices from among said first plurality of subscriber devices;

    powering the common element from said local batteries of the second plurality of subscriber devices by combining power received from the second plurality of subscriber devices at the common element; and

    powering the optical amplifiers using the combined power.

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