Corning Incorporated

David T Marlowe

George Edward Berkey

Snigdharaj Kumar Mishra

Douglas Gregg Neilson

William R Christoff

Kristina M Jeric

Jeffrey C Nelson

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 &#x3b1; 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 &#x3bc;m, 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.

Low macrobending loss optical fiber

The method of fabricating an optical waveguide fiber from a preform having a centerline aperture which includes reducing the pressure in the centerline aperture, then increasing the pressure in the centerline aperture to a pressure in order to improve uniformity, circularity, and/or symmetry around the centerline aperture region.

Method for fabricating a low polarization mode dispersion optical fiber

Growing community of inventors

Wilmington, NC, United States of America

David T Marlowe