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Generation of optical signals with RF components

  • US 5,777,771 A
  • Filed: 01/16/1996
  • Issued: 07/07/1998
  • Est. Priority Date: 03/31/1993
  • Status: Expired due to Term
First Claim
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1. A method of generating an optical signal having a first RF component including a first RF carrier frequency and an information component, the method comprising the steps of:

  • i) generating a first optical signal having a second RF component including a second RF carrier frequency different from said first RF carrier frequency;

    ii) generating a control signal having a third non-zero RF component including a third RF carrier frequency different from said first RF carrier frequency;

    said second or said third RF component including the information component;

    iii) applying the first optical signal to an optical modulator; and

    iv) applying the control signal to the optical modulator to modulate the first optical signal so as to produce an output optical signal modulated by said first RF carrier frequency and said information component, said first carrier frequency being said second carrier frequency up-converted by said third carrier frequency or by an integer multiple of said third carrier frequency, wherein an amplitude of said control signal is controlled to control a desired harmonic output.

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