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. 09, 1997
Filed:
Mar. 11, 1996
Applicant:
Inventor:
Marcos Y Kleinerman, Southbridge, MA (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B / ; H04J / ; G01J / ; H01J / ;
U.S. Cl.
CPC ...
385123 ; 385 12 ; 385 13 ; 385126 ; 385127 ; 359115 ; 359124 ; 356319 ; 356320 ; 356432 ; 356445 ; 25022711 ; 25022714 ; 25022718 ; 25022723 ; 25022722 ;
Abstract
The invention relates to fiber optic methods and devices for sensing physical parameters, like temperature or force, by converting a fraction of the intensity of the interrogating light into a positive signal with wavelengths and/or light propagation modes different from those of the interrogating light. Preferred embodiments make use of the redistribution of the intensity of the interrogating light between the core and a secong light-guiding region of an optical fiber probe, and the processing of the light carried by said second light-guiding region into a positive signal separable from the interrogating light.