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Fabry-perot laser apparatus mode-locked to multi-frequency lasing light source and optical transmission apparatus using the same

  • US 20040101305A1
  • Filed: 08/11/2003
  • Published: 05/27/2004
  • Est. Priority Date: 11/21/2002
  • Status: Active Grant
First Claim
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1. A Fabry-Perot (FP) laser apparatus mode-locked to a multi-frequency lasing light source as a light source for Wavelength Division Multiplexing WDM-based optical communications, comprising:

  • an optical amplifier that amplifies inputted optical signals;

    a laser light source that wavelength division demultiplexes a first part of the inputted optical signals, multiplexes the demultiplexed optical signals, re-transmits the multiplexed optical signals, wavelength division demultiplexes the remaining part of the amplified optical signals, and outputs signals mode-locked to the demultiplexed signals; and

    a first circulator that inputs the remaining part of the amplified optical signals into the laser light source, and outputs, to an optical transmission link, optical signals mode-locked to the multi-frequency lasing light source outputted from the laser light source.

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