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. 05, 2013
Filed:
Jan. 31, 2012
Denis Molin, Draveil, FR;
Marianne Bigot-astruc, Marcoussis, FR;
Pierre Sillard, Le Chesnay, FR;
Koen DE Jongh, Son en Breugel, NL;
Denis Molin, Draveil, FR;
Marianne Bigot-Astruc, Marcoussis, FR;
Pierre Sillard, Le Chesnay, FR;
Koen de Jongh, Son en Breugel, NL;
Draka Comteq, B.V., Amsterdam, NL;
Abstract
A multimode optical fiber includes a central core having a graded-index profile with a delta value of about 1.9 percent or greater. The graded-index core profile has at least two different alpha parameter values along the core radius, namely a first value in an inner zone of the central core and a second value in an outer zone of the central core. The second alpha parameter value is typically less than the first alpha parameter value. The graded-index core profile and its first derivative are typically substantially continuous over the width of the graded-index core.