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Compact wide tunable bandwidth phased array antenna controller

  • US 5,187,487 A
  • Filed: 03/05/1992
  • Issued: 02/16/1993
  • Est. Priority Date: 03/05/1992
  • Status: Expired due to Fees
First Claim
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1. An optical signal control system comprising:

  • a source of coherent, polarized light;

    acousto-optic means for generating a reference beam cluster and a signal beam cluster from light beams emanating from the light source, each of said clusters comprising a plurality of light beams;

    one of said beam clusters being diffracted and one of said beams clusters being undiffracted;

    an optical phase modulating device coupled to said acousto-optic means and disposed to selectively delay the phase selected light beams in said signal beam cluster;

    means for combining along collinear paths said reference light beams said signal light beams passing from said modulating device; and

    heterodyne means for detecting interference between respective ones of the combined signal light beams and corresponding reference light beams.

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