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Liquid crystal waveguide having refractive shapes for dynamically controlling light

  • US 8,311,372 B2
  • Filed: 07/06/2007
  • Issued: 11/13/2012
  • Est. Priority Date: 01/22/2004
  • Status: Active Grant
First Claim
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1. A waveguide, comprising:

  • a substantially planar core for guiding a light beam through the waveguide, wherein said planar core has a thickness of less than one half a wavelength of the light beam, wherein the core has an index of refraction sized such that a TE index is not equal to a TM index for an operable voltage range of 0 to 100 V to avoid TE and TM crossings;

    at least one cladding having a liquid crystal material disposed therein; and

    means for controllably refracting the light beam in a direction parallel to said planar core as the light beam travels through the waveguide.

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