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Output steerable optical phased array

  • US 5,233,673 A
  • Filed: 10/09/1991
  • Issued: 08/03/1993
  • Est. Priority Date: 10/09/1991
  • Status: Expired due to Fees
First Claim
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1. An optical phased array, comprising:

  • an input light source;

    a substrate having an optical waveguide pattern formed thereon, said pattern comprising an input waveguide having a light receiving end disposed to receive light from said light source and a plurality of optical waveguide channels terminating in respective light emitting ends, said waveguide pattern arranged to divide the light received in said input waveguide into said plurality of optical channels, wherein said light emitting ends comprise an array of monochromatic light emitters arranged along an axis; and

    means for adjusting the relative optical phase delay between adjacent light emitters to provide a progressive phase delay change across said array to steer a focussed spot of light resulting from said light emitters to a desired direction.

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