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:
May. 18, 2004
Filed:
Nov. 09, 2001
Applicant:
Inventors:
Marco Groenewoud, Eindhoven, NL;
Jozef Wilhelmus Quirinus Fianen, Oisterwijk, NL;
Assignee:
Draka Fibre Technology B.V., Eindhoven, NL;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01B 9/02 ;
U.S. Cl.
CPC ...
G01B 9/02 ;
Abstract
The invention relates to a method for measuring the spin in an optical fibre by irradiating an optical fibre with light so as to form an interference pattern, wherein the ovality of the optical fibre, which results in a continuously changing interference pattern, is used for determining the spin in the optical fibre.