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:
Dec. 24, 1985
Filed:
Jul. 01, 1983
Applicant:
Inventor:
Pierre Aldebert, Vanves, FR;
Assignee:
Quartz et Silice, , FR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B / ;
U.S. Cl.
CPC ...
350 9630 ; 350 9631 ;
Abstract
Multimode optical fibers are described comprising a cylindrical core with a radius a.sub.o exhibiting an index of refraction n.sub.o surrounded by a cladding having an outer radius a in which the index of refraction varies continually from the core to the periphery from a value of n.sub.1 to a lower value n.sub.e. Between the core and cladding there is a step change .DELTA.n in their respective indices of refraction whose value is a function of the ratio a.sub.o /a. Such fibers have both slight attenuation and slight dispersion and can be manufactured using processes similar to those used in making step-index optical fibers.