The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 19, 2009
Filed:
May. 15, 2006
Thomas Keyser, Plymouth, MN (US);
Glen A. Sanders, Scottsdale, AZ (US);
Grenville Hughes, Wayzata, MN (US);
Lee K. Strandjord, Tonka Bay, MN (US);
Thomas Keyser, Plymouth, MN (US);
Glen A. Sanders, Scottsdale, AZ (US);
Grenville Hughes, Wayzata, MN (US);
Lee K. Strandjord, Tonka Bay, MN (US);
Honeywell International, Inc., Morristown, NJ (US);
Abstract
Methods and apparatus are provided for a low cost optical gyro using thin film waveguides to direct light beams among the components of the gyro. The gyro includes a substrate having an insulator layer, a silicon waveguide formed on the insulator layer, and a resonator coupled to the silicon waveguide and configured to circulate a portion of a first light beam in a first counter-propagating direction and circulate a portion of a second light beam in a second counter-propagating direction. The first silicon waveguide propagates the first and second light beams therethrough. Each of the first and second light beams has a resonance frequency when circulating in the resonator.