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:
Apr. 24, 2007
Filed:
Feb. 19, 2003
Daniel Cantin, Sainte-Foy, CA;
Alain Cournoyer, Québec, CA;
Marc Lévesque, Saint-Augustin-de-Desmaures, CA;
Julie Fréchette, Sainte-Foy, CA;
Sylvain Plante, Québec, CA;
Daniel Cantin, Sainte-Foy, CA;
Alain Cournoyer, Québec, CA;
Marc Lévesque, Saint-Augustin-de-Desmaures, CA;
Julie Fréchette, Sainte-Foy, CA;
Sylvain Plante, Québec, CA;
Institut National d'Optique, Quebec, CA;
Abstract
The present invention concerns an optical sensor located on a preferred azimuthal portion of the side of an optical fiber. An optical fiber having two opposite ends, a core and a cladding and at least one sensing area is disclosed. Each of the sensing areas is located between the two opposite ends and each has a longitudinal, a radial and an azimuthal portion of the fiber that has been removed and replaced by a sensing material. The sensing collected light is thus representative of a parameter to be measured, such as temperature. Placing the sensing material in a lateral side portion of the fiber increases the sensitivity of the sensor, particularly when it comes to contact temperature measurement in vivo.