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. 05, 2019
Filed:
Aug. 31, 2018
Nexans, Courbevoie, FR;
Paul Michael Good, New Holland, PA (US);
Rakesh Sambaraju, Downingtown, PA (US);
NEXANS, Courbevoie, FR;
Abstract
A multi-mode optical fiber includes a glass center for conducting fundamental and high order modes of light waves, the high order modes including a first desired group of high order modes and a second undesired group of high order modes. A cladding surrounds the glass center, the glass center and cladding forming a core. A trench within the cladding surrounds the glass center reflecting the first and second groups of high order modes into the core. An acrylic layer surrounds the core. A buffer coating of polymer surrounds the acrylic layer and the core. The buffer coating is a pressure extruded polymer, where the buffer coating retains at least some of the pressure from the pressure extrusion and applies continuous pressure to the acrylic layer and the core therein, along the length of the fiber, such that the at least the first group of desired high order modes are permitted to be transmitted through the core and where the second group of undesired high order modes are suppressed.