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:
Sep. 23, 1997
Filed:
Apr. 10, 1995
Jocelyn Lauzon, Saint-Augustin-de-Desmaures, CA;
Francedilla.ois Ouellette, Dulwich Hill, AU;
Universite Laval, Quebec, CA;
Abstract
A linear chirp is imposed on a fibre Bragg grating by means of a temperature gradient impressed on the grating. An optical fibre containing a fibre Bragg grating is set in a groove in an elongated plate. A temperature gradient is imposed on the plate by the applying heat to each end of the plate containing the optical fibre. The heat is applied by means of Peltier effect plates which sandwich each end of the elongated plate. Thermistors are applied to the elongated plate between the Peltier effect plates to provide feedback as to the temperature of the elongated plate and to enable an estimate to be made of the gradient across the fibre Bragg grating.