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:
Aug. 01, 2000
Filed:
Jul. 23, 1998
Applicant:
Inventors:
Andre Tardy, Egly, FR;
Pascale Nouchi, Villebon S/Yvette, FR;
Rosine Meilleur, Saint Germain les Arpajon, FR;
Assignee:
Alcatel, Paris, FR;
Primary Examiner:
Int. Cl.
CPC ...
G02B / ;
U.S. Cl.
CPC ...
385126 ; 385127 ;
Abstract
The multi-core optical fiber comprises cores embedded in common cladding, with each core containing a dopant. A 'peculiar' one of the cores has a central zone that is not doped by the dopant, the other cores all being completely doped by the dopant, thereby enabling the peculiar core to be used as a local reference point in order to locate the cores of the optical fiber individually.