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:
Oct. 23, 1984
Filed:
Mar. 13, 1980
Applicant:
Inventor:
Robert Olshansky, Addison, NY (US);
Assignee:
Corning Glass Works, Corning, NY (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C03C / ;
U.S. Cl.
CPC ...
65-312 ; 65 182 ;
Abstract
An optical waveguide for a communication system includes a graded index core formed from at least three glass-forming compounds with a profile having at least two .alpha.-type index profile terms. The core has a refractive index which is n.sub.c at the center of the core and which varies as a function of the radial distance r from the center of the core substantially as: ##EQU1## where .alpha..sub.i is defined by: ##EQU2## .DELTA.=(n.sub.c.sup.2 -n.sub.o.sup.2)/2n.sub.c.sup.2, n.sub.o is the refractive index of said compounds at r=a,