Sean Jones

6807358, Oct 19, 2004

Aug 30, 2002

10/232078

Marc D. Jones - Lithonia GA
Sean L. Jones - Clarkston GA
Francis G. McCormack - Cumming GA
David N. Ridgway - Conyers GA
Ian A. White - Dunwoody GA

Fitel USA Corp. - Norcross GA

G02B 600

385140, 385 70, 385 72

A variable attenuator has first and second substantially identical ferrules or capillaries, each being mounted in a barrel or splice housing and extending toward each other, with their distal ends being separated by a gap of a first width. The width of the gap is controlled by a sleeve into which the ferrules are inserted, the ends of the sleeve butting against the front faces of the barrels. The ferrules are made by producing a glass rod mounted between the barrels and having a bore offset from and parallel to the centerline of the rod and breaking or cleaving the rod at its longitudinal center. The broken ends are then polished. The barrels are keyed to a housing member so that the offset bores are coincident in the zero position as defined by the keys.

6810196, Oct 26, 2004

Nov 6, 2003

10/703785

Sean L. Jones - Clarkston GA
Francis G. McCormack - Cumming GA
David N. Ridgeway - Conyers GA
Ian A. White - Dunwoody GA

Fitel USA Corp. - Norcross GA

G02B 600

385140, 385 73

A fiber optic cable suitable for blowing into and through ducts containing pressurized gas, such as natural gas, has the fibers therein arranged in arrays that form longitudinally extending vents. The vents are blocked from transmission of any gas by each being filled with a compliant member which assumes the cross-sectional shape of the vents thereby blocking it. In a second embodiment of the invention, the first and third ferrules are fixed within the housing with their offset bores in alignment. A second ferrule is interposed between the first and third ferrules and is mounted in a rotatable member for misaligning the bore in the second ferrule with the bores in the first and third ferrule to produce attenuation of a signal passing through the ferrules by misaligning the fibers contained in the bores.

7082250, Jul 25, 2006

Apr 15, 2004

10/825341

Sean L. Jones - Clarkston GA, US
Jinkee Kim - Norcross GA, US
Yu Lu - Norcross GA, US

Furukawn Electric North America, Inc. - Norcross GA

G02B 6/00

385134, 21912161, 21912167, 21912169

A laser cleaving apparatus for use in terminating optical fiber cable ends has a laser beam source, the output of which is directed through a beam distorting member, which produces a beam having a chisel shape with a substantially flat side normal to the axis of a connector fiber containing ferrule and focuses it onto the fiber at a point adjacent the ferrule end face with the flat side also adjacent the end face. A single step polishing stage polishes the cleaved fiber end face to make it flat and flush with the ferrule end face.

20030068114, Apr 10, 2003

Aug 2, 2002

10/211136

Gayle Link - Smyrna GA, US
Ikechukwu Nnamani - Norcross GA, US
Gerald Ramdeen - Roswell GA, US
Sean Jones - Clarkston GA, US
Calvin Martin - Atlanta GA, US
Carlos Restrepos - Atlanta GA, US
Zelda Gills - Atlanta GA, US
Gary Baker - Atlanta GA, US

G02B006/12
G02B006/10

385/014000, 385/131000

An all-optical semiconductor waveguide optical regenerative device uses a nonlinear ridge waveguide structure to mix an input signal with a local oscillator signal to produce wavelength-switched and optically-regenerated signals. The ridge waveguide structure, and the local oscillator sources, filters and amplifiers may be tunable, microprocessor-controlled and monolithically integrated. The present invention relates to semiconductor waveguide-based structures, photonic application-specific integrated circuits, which can be used for optical signal processing and, more particularly wavelength-conversion, wavelength-shifting, wavelength-translation, wavelength-switching, wavelength-routing and optical signal transmission, amplification, pulse-shaping and regeneration in optical networks by integrating multiple functions on monolithic semiconductor substrates of Indium Phosphide and its ternary and quaternary semiconductor material derivatives. The device has been fashioned from InP-InGaAsP material, other non-linear optical bulk or doped materials.