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. 08, 1977
Filed:
Nov. 05, 1975
Applicant:
Inventor:
Charles K Kao, Roanoke, VA (US);
Assignee:
International Telephone and Telegraph Corporation, Nutley, NJ (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B / ;
U.S. Cl.
CPC ...
350 / ; 350 / ;
Abstract
Methods and apparatus are disclosed for forming a precision three-dimensional surface to clad optical fibers. One embodiment provides means for deforming the fiber end to conform to the geometry of the interstice formed between three tangential and parallel cylinders. The precision three-dimensional fiber end enables accurate low loss coupling between the fibers to be achieved through the accurate reference planes presented.