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:
Mar. 08, 2011
Filed:
Dec. 01, 2006
Applicants:
Terry L. Smith, Roseville, MN (US);
Yasha Yi, Woodbury, MN (US);
Barry J. Koch, Woodbury, MN (US);
Inventors:
Assignee:
3M Innovative Properties Company, St. Paul, MN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01B 9/02 (2006.01); G02B 6/26 (2006.01); G01N 21/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
An optical sensing system and method are disclosed. The optical sensing system includes one or more bus waveguides. A first bus waveguide includes an input port that is in optical communication with a light source. The system further includes a microresonator optically coupled to the bus waveguides and an optical scattering center configured for alteration of a strength of optical coupling between the optical scattering center and the microresonator. In addition, the system includes a detector in optical communication one of the bus waveguides or the microresonator.