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:
Oct. 21, 2014
Filed:
Jul. 01, 2011
Marianne Bigot-astruc, Marcoussis, FR;
Pierre Sillard, Le Chesnay, FR;
Simon Richard, Villebon sur Yvette, FR;
Marianne Bigot-Astruc, Marcoussis, FR;
Pierre Sillard, Le Chesnay, FR;
Simon Richard, Villebon sur Yvette, FR;
Draka Comteq, B.V., Amsterdam, NL;
Abstract
A single-mode optical fiber includes a central core, an intermediate cladding, a buried trench, and optical cladding. The central core has an outer radius rand a refractive index difference Δnrelative to the optical cladding. The intermediate cladding has an outer radius rand a refractive index difference Δnrelative to the optical cladding. The buried trench has an outer radius rand a refractive index difference Δnrelative to the optical cladding. The optical fiber typically has an effective area of about 150 μmor greater at a wavelength of 1550 nanometers and exhibits low bending losses.