Holograghic waveguide LIDAR
First Claim
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1. A waveguide sensor, comprising:
- at least one waveguide;
a source of first wavelength light;
at least one beam deflector for scanning said light; and
a detector optically coupled to said waveguide,said at least one waveguide supporting a first plurality of grating elements for deflecting said light into a predefined range of output directions and a second plurality of gratings for diffracting light reflected from external points to said detector.
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Abstract
A holographic waveguide LIDAR comprises a transmitter waveguide coupled to a beam deflector and a receiver waveguide coupled to a detector module. The transmitter waveguide contains an array of grating elements for diffracting a scanned laser beam into a predefined angular ranges. The receiver waveguide contains an array of grating elements for diffracting light reflected from external points within a predefined angular range towards the detector module.
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Citations
20 Claims
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1. A waveguide sensor, comprising:
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at least one waveguide; a source of first wavelength light; at least one beam deflector for scanning said light; and a detector optically coupled to said waveguide, said at least one waveguide supporting a first plurality of grating elements for deflecting said light into a predefined range of output directions and a second plurality of gratings for diffracting light reflected from external points to said detector. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification