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. 31, 2004
Filed:
Mar. 17, 2003
Scott R. Bickham, Corning, NY (US);
William D. Cornwell, Chester, GB;
Nigel H. Taylor, Chester, GB;
Thomas J. Atwood, Merrimack, NH (US);
Corning Incorporated, Corning, NY (US);
Abstract
Optical fibers of different physical characteristics are combined to produce a hybrid fiber which, at the operating wavelength, has a relatively large effective area and desirable net dispersion and attenuation characteristics over the combined length of the hybrid system. Hybrid fibers are constructed in accordance with the principles of the invention by optically connecting a first fiber having a large effective area (greater than 85 &mgr;m ), an attenuation less than 0.19 dB/km and a dispersion greater than 10 ps/nm/km at 1550 nm, to a second fiber having an effective area which is smaller than the first fiber, a dispersion which is less than 10 ps/nm/km, and an attenuation which is less than 0.23 dB/km at 1550 nm. Both the first and second fibers preferably have a positive dispersion slope at 1550 nm. The first and second fibers are preferably spliced directly together.