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Digital optical transmitter

  • US 7,773,879 B2
  • Filed: 10/31/2007
  • Issued: 08/10/2010
  • Est. Priority Date: 06/22/1998
  • Status: Active Grant
First Claim
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1. A method comprising:

  • receiving a first analog signal and a second analog signal;

    converting the first analog signal to a first digital signal and the second analog signal to a second digital signal;

    generating a digital pilot tone;

    adding the digital pilot tone to the first digital signal to produce a first summed signal and to the second digital signal to produce a second summed signal;

    converting the first summed signal to a first serial signal and the second summed signal to a second serial signal;

    interleaving bits of the first serial signal with bits of the second serial signal to generate an interleaved signal; and

    producing an optical signal in accordance with the interleaved signal.

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