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.

Date of Patent:
Dec. 12, 2017

Filed:

Apr. 25, 2016
Applicant:

Corning Incorporated, Corning, NY (US);

Inventors:

Douglas Llewellyn Butler, Painted Post, NY (US);

Daniel Warren Hawtof, Corning, NY (US);

Rick Charles Layton, III, Mansfield, PA (US);

Gautam Meda, Corning, NY (US);

John Stone, III, Painted Post, NY (US);

Pushkar Tandon, Painted Post, NY (US);

Assignee:

Corning Incorporated, Corning, NY (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 6/02 (2006.01); C03B 37/012 (2006.01); C03B 37/027 (2006.01); C03B 37/029 (2006.01);
U.S. Cl.
CPC ...
G02B 6/02042 (2013.01); C03B 37/01205 (2013.01); C03B 37/01222 (2013.01); C03B 37/027 (2013.01); C03B 37/029 (2013.01); C03B 2203/04 (2013.01); C03B 2203/12 (2013.01); C03B 2203/34 (2013.01);
Abstract

A multicore fiber is provided. The multicore fiber includes a plurality of cores spaced apart from one another, and a cladding surrounding the plurality of cores and defining a substantially rectangular or cross-sectional shape having four corners. Each corner has a radius of curvature of less than 1000 microns. The multicore fiber may be drawn from a preform in a circular draw furnace in which a ratio of a maximum cross-sectional dimension of the preform to an inside diameter of the preform to an inside diameter of the draw furnace is greater than 0.60. The multicore fiber may have maxima reference surface.


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