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. 04, 2014
Filed:
Jun. 27, 2012
Applicants:
Marianne Bigot-astruc, Marcoussis, FR;
Denis Molin, Draveil, FR;
Pierre Sillard, Le Chesnay, FR;
Inventors:
Assignee:
Draka Comteq, B.V., Amsterdam, NL;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 6/036 (2006.01); G02B 6/028 (2006.01);
U.S. Cl.
CPC ...
G02B 6/0288 (2013.01); G02B 6/03683 (2013.01); G02B 6/0365 (2013.01); G02B 6/03605 (2013.01);
Abstract
A depressed graded-index multimode optical fiber includes a central core, an inner depressed cladding, a depressed trench, an outer depressed cladding, and an outer cladding. The central core has an alpha-index profile. The depressed claddings limit the impact of leaky modes on optical-fiber performance characteristics (e.g., bandwidth, core size, and/or numerical aperture).