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:
Jun. 25, 2013
Filed:
Sep. 28, 2010
John Michael Fini, Metuchen, NJ (US);
Robert Lee Lingle, Jr., Johns Creek, GA (US);
Yi Sun, Suwanee, GA (US);
John Michael Fini, Metuchen, NJ (US);
Robert Lee Lingle, Jr., Johns Creek, GA (US);
Yi Sun, Suwanee, GA (US);
OFS Fitel, LLC, Norcross, GA (US);
Abstract
Optical fiber comprises core and a cladding configured to support and guide a fundamental transverse mode, the cladding including (i) an outer cladding having an index nless than the index nof the core, (ii) an inner cladding having an index n<n, (iii) a pedestal having an index n˜n, (iv) an inner trench disposed between the inner cladding and the pedestal, the inner trench having an index n<<n, and (iv) an outer trench disposed between the pedestal and the outer cladding, the outer trench having an index n<nand relatively close to n. To suppress unwanted HOMs the pedestal is configured to resonantly couple at least one unwanted transverse mode of the core (other than the fundamental mode) to at least one transverse mode of the pedestal. Also described is a modular method of making the optical fiber of silica glass.