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. 07, 2005
Filed:
May. 23, 2003
William R. Christoff, Elmira, NY (US);
Kristina M. Jeric, Wilmington, NC (US);
David T. Marlowe, Wilmington, NC (US);
Snigdharaj K. Mishra, Wilmington, NC (US);
William R. Christoff, Elmira, NY (US);
Kristina M. Jeric, Wilmington, NC (US);
David T. Marlowe, Wilmington, NC (US);
Snigdharaj K. Mishra, Wilmington, NC (US);
Corning Incorporated, Corning, NY (US);
Abstract
The present invention provides an optical fiber suitable for the manufacture of optical fiber couplers and having low macrobending loss, low cutoff wavelength, low attenuation, and low sensitivity to variations in overclad mass. One aspect of the present invention provides an optical fiber having a core having an index profile, the index profile of the core having a value of α of between about 1.7 and about 3.0; and a cladding region surrounding and in contact with the core, the cladding region having an outer radius of at least about 40 μm, wherein the optical fiber has a cutoff wavelength of between about 870 nm and about 970 nm, and a macrobending loss of below about 1 dB at a wavelength of 1550 nm when wrapped one turn around a 32 mm mandrel.