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. 02, 2002
Filed:
Nov. 10, 1998
Applicant:
Inventors:
Thomas Chaodung Yang, North Chelmsford, MA (US);
Lee-Ching Hwu, Carlisle, MA (US);
Steven David Conover, Chelmsford, MA (US);
Assignee:
Corning Laserton, Inc., Bedford, MA (US);
Primary Examiner:
Int. Cl.
CPC ...
G02B 6/02 ;
U.S. Cl.
CPC ...
G02B 6/02 ;
Abstract
An endface configuration of an optical fiber has a frustum region which is produced by polishing the endface. In order to produce the optimal rounded tip, however, the polished fiber is then fused. To increase coupling efficiency, the vertex angle of the polished frustum region is acute, preferably between 16 and 20°. Further, to create a hyperbolic endface surface, an intermediate frustum region is preferably polished prior to fusing tip. This fused tip is preferably has a circular cross-section.