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Optomechanical sensor for accelerometry and gyroscopy

  • US 9,239,340 B2
  • Filed: 12/13/2013
  • Issued: 01/19/2016
  • Est. Priority Date: 12/13/2013
  • Status: Active Grant
First Claim
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1. A micro-electromechanical system (MEMS) apparatus, comprising:

  • a laser arrangement configured to generate a light beam having a resonant wavelength;

    a waveguide configured to receive and output the light beam; and

    an optical resonator comprising a deformable closed loop and optically coupled to the waveguide to receive a portion of the light beam, wherein the deformable closed loop defines a radial plane in which the deformable closed loop is disposed,wherein the deformable closed loop is to deform in response to an application of inertial force to the deformable closed loop, substantially parallel to the radial plane of the deformable closed loop, wherein a deformation of the deformable closed loop occurs in the radial plane of the deformable loop and results in a change of a length of the deformable closed loop and corresponding change of an optical path length of a portion of the light beam traveling through the deformable closed loop, to cause a change in the resonant wavelength of the light beam outputted by the waveguide.

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