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:
Nov. 30, 1999
Filed:
Nov. 19, 1997
Kevin Christopher Byron, Bishop Stortford, GB;
Clifford Michael Leggett, Bishop Stortford, GB;
Northern Telecom Limited, Montreal, CA;
Abstract
A partially coated optical fiber for laser transmission, is described, wherein the partially coated optical fiber comprises an optical fiber which comprises an optionally clad fiber core and an external coating. The external coating and the fiber core are longitudinally substantially coextensive but circumferentially non-coextensive whereby the coating defines a grating window extending longitudinally for at least the major part of the length of the fiber. The window is optionally interrupted by one or more coating continuities which partition said window. The coating has a thickness such that a plane bridging the circumferential displacement of the grating window is extra-peripheral of the optical fiber.