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:
Jan. 05, 2021
Filed:
Oct. 03, 2019
Draka Comteq France, Paron, FR;
Marianne Bigot, Paron, FR;
Jean-Baptiste Trinel, Paron, FR;
Pierre Sillard, Paron, FR;
Louis-Anne De Montmorillon, Paron, FR;
DRAKA COMTEQ FRANCE, Paron, FR;
Abstract
A few-mode optical fiber including a core's refractive-index profile Δn(r) of trapezoid-like shape. The optical core having a center part of radius Rand a transition part ranges from the radius Rto a radius R, such that R>Rwith Rbetween 6.8 and 11.5 μm, said refractive-index profile being defined by a surface integral of the core index profile of between 180×10and 270×10μm; a transition slope S of between 1.7×10and 12×10μm; with Δnand Δnthe refractive-index difference respectively of the center part of the optical core and of the cladding part adjacent to the optical core, with respect to the outer optical cladding.