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Optical repeater

  • US 20040101313A1
  • Filed: 11/20/2003
  • Published: 05/27/2004
  • Est. Priority Date: 11/21/2002
  • Status: Active Grant
First Claim
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1. An optical repeater, comprising:

  • a demultiplexer for dividing an inputted light into two components;

    a semiconductor optical amplifier including an active layer that has one type of structure selected from a group composed of a quantum dot, a quantum wire, a quantum dash, and a quantum well, and amplifying respective components of a light outputted from said demultiplexer; and

    a multiplexer for coupling two components of a light outputted from said semiconductor optical amplifier.

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