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:
Jul. 07, 2015
Filed:
Feb. 22, 2011
Xinli Jiang, Shrewsbury, MA (US);
Jinkee Kim, Norcross, GA (US);
George Oulundsen, Belchertown, MA (US);
Yi Sun, Suwanee, GA (US);
Durgesh S. Vaidya, Southbridge, MA (US);
Man F. Yan, Berkeley Heights, NJ (US);
Xinli Jiang, Shrewsbury, MA (US);
Jinkee Kim, Norcross, GA (US);
George Oulundsen, Belchertown, MA (US);
Yi Sun, Suwanee, GA (US);
Durgesh S. Vaidya, Southbridge, MA (US);
Man F. Yan, Berkeley Heights, NJ (US);
OFS FITEL, LLC, Norcross, CA (US);
Abstract
Optical fiber designs are depicted with a core having an alpha profile inner portion and a steep vertical step between the core and a cladding with no shoulder, referred to herein as a truncated core. A further aspect of this invention can include a trench between the truncated core and cladding. In this embodiment, the core performs as not only as the primary light guiding structure, but now also functions essentially the same as that of a trench structure. Thus, what was formally a trench can now be much less negative or even positive. Another embodiment of the present invention includes an optical fiber having a truncated core with the addition of a ledge or shoulder between the core and vertical step, followed directly by a cladding.