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. 09, 2011
Filed:
Nov. 19, 2009
Louis-anne DE Montmorillon, Versailles, FR;
Denis Molin, Draveil, FR;
Pieter Matthijsse, Hapert, NL;
Frans Gooijer, Eindhoven, NL;
Ivo Flammer, Paris, FR;
Yves Lumineau, Herblay, FR;
Marianne Bigot-astruc, Marcoussis, FR;
Pierre Sillard, Le Chesnay, FR;
Pascale Nouchi, Ville d'Avray, FR;
Louis-Anne de Montmorillon, Versailles, FR;
Denis Molin, Draveil, FR;
Pieter Matthijsse, Hapert, NL;
Frans Gooijer, Eindhoven, NL;
Ivo Flammer, Paris, FR;
Yves Lumineau, Herblay, FR;
Marianne Bigot-Astruc, Marcoussis, FR;
Pierre Sillard, Le Chesnay, FR;
Pascale Nouchi, Ville d'Avray, FR;
Draka Comteq, B.V., Amsterdam, NL;
Abstract
An optical transmission fiber comprises a central core having an index difference Δwith an outer optical cladding; a first inner cladding having an index difference Δwith the outer cladding; and a second buried inner cladding having an index difference Δwith the outer cladding of less than −3·10. The second buried inner cladding moreover contains Germanium in a weight concentration of between 0.5% and 7%. The fiber shows reduced bending and microbending losses whilst exhibiting the optical performances of a standard single-mode fiber (SSMF).