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:
Jun. 10, 1986
Filed:
Oct. 28, 1983
Jack E Goodman, Germantown, MD (US);
Donald C Schmadel, Kensington, MD (US);
Chevron Research Company, San Francisco, CA (US);
Abstract
A ruggedized grated optical fiber is described. The gratings in the fiber permit its use as a reflector or an interferometer when pairs of gratings having the same reflectance characteristics are spaced along the optical fiber. The ruggedized fiber comprises an optical fiber having the outer cladding removed down to an inner sheathing wherein a portion of the inner sheathing is further removed to expose the core wherein evanescent waves are encountered. The gratings are formed in this core. Surrounding the gratings and connected to the inner sheathing are two semi-tubular sections which are affixed to the inner sheathing and hermetically sealed around the gratings.