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:
Mar. 02, 2010
Filed:
Feb. 21, 2006
Martin W. Allen, Wilmington, NC (US);
Dana C. Bookbinder, Corning, NY (US);
Dipakbin Q. Chowdhury, Corning, NY (US);
Daniel W. Hawtof, Painted Post, NY (US);
Dale R. Powers, Painted Post, NY (US);
Martin W. Allen, Wilmington, NC (US);
Dana C. Bookbinder, Corning, NY (US);
Dipakbin Q. Chowdhury, Corning, NY (US);
Daniel W. Hawtof, Painted Post, NY (US);
Dale R. Powers, Painted Post, NY (US);
Corning Incorporated, Corning, NY (US);
Abstract
A method of fabricating an optical waveguide fiber that includes the steps of providing a cylindrical glass optical fiber preform having a longitudinally extending centerline hole, and closing the hole under conditions suitable to result in uniform and symmetric hole closure. The method may include first plugging a first end and a second end of the centerline hole to prevent gas flow therethrough. The method preferably involves closing the centerline hole of the preform by drawing the preform down into an optical waveguide fiber.