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. 27, 2013
Filed:
Jan. 22, 2010
Simon Richard, Villebon sur Yvette, FR;
Louis-anne DE Montmorillon, Versailles, FR;
Pierre Sillard, Le Chesnay, FR;
Marianne Bigot-astruc, Marcouseis, FR;
Denis Molin, Draveil, FR;
Simon Richard, Villebon sur Yvette, FR;
Louis-Anne de Montmorillon, Versailles, FR;
Pierre Sillard, Le Chesnay, FR;
Marianne Bigot-Astruc, Marcouseis, FR;
Denis Molin, Draveil, FR;
Draka Comteq, B.V., Amsterdam, NL;
Abstract
An optical fiber includes a central core, which has a radius rand a refractive index n, and a surrounding optical cladding, which has a refractive index nsuch that n<nand 0.31%<((n−n)÷n)<0.55%. The optical cladding has at least five holes. These holes, which are positioned between about 9 microns and 17 microns from the central core, have a radius rsuch that 0.5r≦r≦r.