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:
Sep. 21, 2004
Filed:
Feb. 12, 2002
Applicant:
Inventor:
Bernhard A. M. Deutsch, Hickory, NC (US);
Assignee:
Corning Incorporated, Corning, NY (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B 6/16 ;
U.S. Cl.
CPC ...
G02B 6/16 ;
Abstract
The invention describes an optical waveguide and a fiberoptic isolator wherein the optical waveguide rotating the plane of polarization of coupled light consists of a fiber core ( ) exhibiting the Faraday effect, a fiber cladding ( ) and a coating ( ) concentrically surrounding the YIG-doped fiber core ( ) and generating a permanent magnetic field. The outer coating ( ) is manufactured from a material that is magnetizable or has magnetic properties, and the outer coating ( ) is subdivided into two half-shells whose magnetic orientations are mutually opposed.