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:
Feb. 02, 2016
Filed:
Feb. 24, 2012
Lars Gruner-nielsen, Copenhagen, DK;
Robert L. Lingle, Alpharetta, GA (US);
Alan Mccurdy, Duluth, GA (US);
David W. Peckham, Lawrenceville, GA (US);
Torger Tokle, Allerod, DK;
Lars Gruner-Nielsen, Copenhagen, DK;
Robert L. Lingle, Alpharetta, GA (US);
Alan McCurdy, Duluth, GA (US);
David W. Peckham, Lawrenceville, GA (US);
Torger Tokle, Allerod, DK;
OFS FITEL, LLC, Norcross, GA (US);
Abstract
A few-mode optical fiber comprises a core surrounded by a cladding, having a step index profile that is structured to support propagation of a plurality of desired signal-carrying modes, while suppressing undesired modes. The core and cladding are configured such that the undesired modes have respective effective indices that are close to, or less than, the cladding index such that the undesired modes are leaky modes. The index spacing between the desired mode having the lowest effective index and the leaky mode with the highest effective index is sufficiently large so as to substantially prevent coupling therebetween.