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:
May. 24, 2011
Filed:
Apr. 27, 2010
Robert M. Atkins, Millington, NJ (US);
James W. Fleming, Westfield, NJ (US);
Paul F Glodis, Atlanta, GA (US);
Man F. Yan, Berkeley Heights, NJ (US);
Robert M. Atkins, Millington, NJ (US);
James W. Fleming, Westfield, NJ (US);
Paul F Glodis, Atlanta, GA (US);
Man F. Yan, Berkeley Heights, NJ (US);
OFS Fitel, LLC, Norcross, GA (US);
Abstract
The specification describes methods for the manufacture of very large optical fiber preforms wherein the core material is produced by MCVD. Previous limitations on preform size inherent in having the MCVD starting tube as part of the preform process are eliminated by removing the MCVD starting tube material from the collapsed MCVD rod by etching or mechanical grinding. Doped overcladding tubes are used to provide the outer segments of the refractive index profile thus making most effective use of the MCVD produced glass and allowing the production of significantly larger MCVD preforms than previously possible.