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. 31, 2016
Filed:
Aug. 14, 2013
Cleveland Electric Laboratories Co., Twinsburg, OH (US);
Scott V. Johnson, Scottsdale, AZ (US);
Mike McNeilly, Gilbert, AZ (US);
The Cleveland Electric Laboratories Co., Twinsburg, OH (US);
Abstract
A Sagnac interferometer event sensing device is disclosed. The device includes first and second light sources respectively emitting first and second light beams at first and second, different wavelengths. The device includes an optical fiber path, a first portion along which only the first light beam travels, a second portion along which only the second light beam travels, and a third portion along which both the first and second light beams travel. The device includes a first detector at an end of the first portion of the optical path to receive the first light beam, and a second detector at an end of the second portion of the optical path to receive the second light beam. The device includes a first plurality of depolarizers disposed along the first portion of the optical fiber path, and a second plurality of depolarizers disposed along the second portion of the optical fiber path.