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:
Mar. 13, 2001
Filed:
Mar. 09, 1999
Applicant:
Inventors:
Laura Boschis, Almese, IT;
Angelantonio Gnazzo, Alessandria, IT;
Oriana Rossotto, Almese, IT;
Luigi Tallone, Paesana, IT;
Assignee:
OTC-Optical Technologies Center S.r.l., Turin, IT;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 6/34 ;
U.S. Cl.
CPC ...
G02B 6/34 ;
Abstract
A grating made in the core of an optical fiber presents a nonuniform and asymmetrical profile of the modulation of the refractive index in the direction of the length, which profile is represented by a curve that rises gradually and monotonically from a minimum and substantially null value, with substantially horizontal tangent, in correspondence with an end of the grating to a maximum value, also with substantially horizontal tangent, which is reached in correspondence with the other end of the grating.