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:
Dec. 04, 2012
Filed:
Sep. 17, 2010
Andrew Peter Knights, Grimsby, CA;
Adrian Petru Vonsovici, London, GB;
Dominic Joseph Brady, Headington, GB;
Andrew Alan House, Headington, GB;
George Frederick Hopper, Maidenhead, GB;
Andrew Peter Knights, Grimsby, CA;
Adrian Petru Vonsovici, London, GB;
Dominic Joseph Brady, Headington, GB;
Andrew Alan House, Headington, GB;
George Frederick Hopper, Maidenhead, GB;
Kotura, Inc., Monterey Park, CA (US);
Abstract
The sensor includes an optical waveguide defined in a light-transmitting medium. The waveguide includes a sensing portion and an non-sensing portion. The light-transmitting medium included in the sensing portion has defects that provide the light-transmitting medium with a deep band gap level between a valence band of the light-transmitting medium and a conduction band of the light-transmitting medium. The deep band gap level is configured such that the waveguide guiding light signals through the light-transmitting medium in the sensing portion causes free carriers to be generated in the light-transmitting medium. A detector is configured to detect the free carriers in the sensing region of the waveguide.