Dual-mode fiber optic telecommunications system and method

  • US 6,665,500 B2
  • Filed: 01/29/2001
  • Issued: 12/16/2003
  • Est. Priority Date: 01/29/2001
  • Status: Active Grant
First Claim
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1. An optical data transmitter comprising:

  • a laser;

    a phase modulator for phase modulating light from the light source; and

    a controller having an input for receiving an electronic data stream, the controller in a first mode controlling the phase modulator so as to create phase-modulated optical signals in the light from the laser as a function of the electronic data stream and the controller in a second alternate mode amplitude-modulating the light from the laser as a function of the electronic data stream, the first mode and the second mode occurring at different times.

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