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Method and apparatus for transmitting broadband amplitude modulated radio frequency signals over optical links

  • US 5,500,758 A
  • Filed: 10/11/1994
  • Issued: 03/19/1996
  • Est. Priority Date: 12/04/1989
  • Status: Expired due to Term
First Claim
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1. A method of receiving intensity-modulated optical signals over optical links to produce a plurality of radiofrequency channels covering more than one octave of bandwidth, comprising:

  • receiving at least three intensity-modulated optical signals over optical links;

    demodulating each received intensity-modulated optical signal to produce a corresponding group of modulated radiofrequency carrier signals;

    filtering each said group of modulated radiofrequency carrier signals to roll off noise and distortion products, thereby producing respective groups of modulated radiofrequency carrier signals, each group of modulated radiofrequency carrier signals having a bandwidth of contiguous radiofrequency channels covering less than one octave; and

    combining the groups of modulated radiofrequency carrier signals to produce a single signal having a plurality of radiofrequency channels covering more than one octave of bandwidth.

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