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High-speed electro-optic modulator

  • US 6,330,097 B1
  • Filed: 04/08/1999
  • Issued: 12/11/2001
  • Est. Priority Date: 04/08/1998
  • Status: Expired due to Fees
First Claim
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1. A light modulator comprising:

  • an input optical fiber;

    a polarization separator that separates incident light from the input optical fiber into two polarization components along separate paths within the modulator;

    a solid-state electro-optic PLZT phase retarder having electrodes that provide an electric field across the paths, said electric field in said phase retarder producing relative phase retardation with respect to the two polarization components from the separator;

    a polarization recombiner that combines the polarization components from the retarder to form a modulated optical signal;

    an output fiber optically coupled to the recombiner and that receives the modulated optical signal; and

    an optical sensor that is optically coupled such that the sensor receives at least a portion of the modulated optical signal, the sensor providing a feedback signal that controls the modulator.

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