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:
Jun. 13, 2017
Filed:
Feb. 28, 2014
Draka Comteq B.v., Amsterdam, NL;
Draka Comteq, B.V., Amsterdam, NL;
Abstract
The invention concerns a multimode optical fiber, with a graded-index core co-doped with at least fluorine F and germanium GeOand a refractive index profile with at least two α-values. According to the invention, the concentration of fluorine F at the core center ([F]) is between 0 and 3 wt % and the concentration of fluorine F at the core outer radius ([F]) is between 0.5 wt % and 5.5 wt %, with [F]−[F]>0.4 wt %. For wavelengths comprised between 850 nm and 1100 nm, said multimode optical fiber has an overfilled launch bandwidth (OFL-BW) greater than 3500 MHz·km and a calculated effective modal bandwidth (EMBc) greater than 4700 MHz·km over a continuous operating wavelength range greater than 150 nm.