Kenneth Alan Jackson

US Patent:

6904210, Jun 7, 2005

Filed:

Sep 17, 2002

Appl. No.:

10/200681

Inventors:

Vidyananda Bangalore Chandraiah - Lawrcenville GA, US
Kyoyul Oh - Alpharetta GA, US
Kenneth Wade Jackson - Snellville GA, US

Assignee:

Fitel USA Corp. - Norcross GA

International Classification:

G02B006/44

US Classification:

385114, 385128

Abstract:

A fiber optic cable is disclosed that buffers against loss, where the cable includes an outer jacket, and an optical fiber ribbon disposed within the outer jacket, wherein the ribbon includes more than one optical fiber, and at least two distinct matrix coatings disposed on the optical fibers, the coatings having distinct characteristics. Preferably, the inner coating is relatively soft, with a lower elastic modulus than the relatively stiff, hard outer coating. Also disclosed is a method of buffering loss in an optical fiber transmission, including providing an optical fiber ribbon, wherein the ribbon includes more than one optical fiber, and at least two distinct matrix coatings disposed on the optical fibers, the coatings having distinct characteristics; and transmitting in at least one of the C-band, L-band and U-band of wavelengths.

US Patent:

D2999447, Feb 21, 1989

Filed:

Jul 23, 1987

Appl. No.:

7/076924

Inventors:

Thomas H. Haavig - Cedar MN
Howard G. Haataja - St. Paul MN
Kenneth R. Jackson - Oakdale MN

US Classification:

D22126

US Patent:

63210134, Nov 20, 2001

Filed:

Sep 15, 1999

Appl. No.:

9/397444

Inventors:

Nathan E. Hardwick - Dunwoody GA
Kenneth Wade Jackson - Snellville GA
Clyde Jefferson Lever - Buford GA
Richard Hartford Norris - Powder Springs GA
Jim Jenqtsong Sheu - Dunwoody GA
Richard Dalton Small - Lilburn GA
Carl Raymond Taylor - Lawrenceville GA
Peter A. Weimann - Atlanta GA

Assignee:

Lucent Technologies, Inc. - Murray Hill NJ

International Classification:

G02B 644

US Classification:

385114

Abstract:

An optical module includes a stack of optical fiber ribbons that are within a buffer encasement, such as a thin sheath, that closely bounds the periphery of the stack. The optical modules can be rectangular, so that the optical modules can be readily stacked in a manner that results in a very space efficient fiber optic cable. The optical modules can be tested prior to being incorporated into the fiber optic cable so as to maximize the probability of the fiber optic cable being fully operable. The sheath cushions all of the sides of the stack. In some optical modules, the stack is movable relative to the sheath and the optical fiber ribbons are movable relative to one another. The sheath is preferably sufficiently rigid to maintain the stack in a stacked configuration, and sufficiently flexible to allow the optical fiber ribbons to slide laterally relative to one another so that, in an end elevation view of the stack, the stack and the sheath can transition from a non-skewed configuration to a skewed configuration. The lateral displacement between the optical fiber ribbons in the skewed configuration is different from the lateral displacement between the optical fiber ribbons in the non-skewed configuration. The stack can be in a longitudinally twisted configuration, and the sheath is sufficiently rigid to hold the stack in the longitudinally twisted configuration.

US Patent:

63175428, Nov 13, 2001

Filed:

Sep 15, 1999

Appl. No.:

9/396305

Inventors:

Nathan E. Hardwick - Dunwoody GA
Kenneth Wade Jackson - Snellville GA
Clyde Jefferson Lever - Buford GA
Richard Hartford Norris - Powder Springs GA
Jim Jenqtsong Sheu - Dunwoody GA
Richard Dalton Small - Lilburn GA
Carl Raymond Taylor - Lawrenceville GA
Peter A. Weimann - Atlanta GA

Assignee:

Lucent Technologies, Inc. - Murray Hill NJ

International Classification:

G02B 644

US Classification:

385114

Abstract:

A fiber optic cable includes multiple differently sized stacks of optical fiber ribbons. The stacks include a central stack that is approximately centrally located in a jacket passage and peripheral stacks positioned radially around the central stack. A difference exists between the dimensions of the central stack and the dimensions of one or more of the peripheral stacks. Another fiber optic cable has multiple longitudinally extending stacks of optical fiber ribbons that are within a jacket passage. The stacks include a central stack that is approximately centrally located in the jacket passage, and peripheral stacks positioned radially around the central stack. Buffer encasements that respectively contain the peripheral stacks are longitudinally stranded around the central stack. Each buffer encasement includes a longitudinally extending interior surface that extends around and defines a longitudinally extending passage that contains the respective peripheral stack, and each interior surface closely bounds and engages a substantial portion of the periphery of the respective peripheral stack. Another fiber optic cable includes multiple optical modules within a longitudinally extending jacket and longitudinally stranded around a central member.

US Patent:

62159321, Apr 10, 2001

Filed:

Sep 15, 1999

Appl. No.:

9/396329

Inventors:

Nathan E. Hardwick - Dunwoody GA
Kenneth Wade Jackson - Snellville GA
Clyde Jefferson Lever - Buford GA
Richard Hartford Norris - Powder Springs GA
Jim Jenqtsong Sheu - Dunwoody GA
Richard Dalton Small - Lilburn GA
Carl Raymond Taylor - Lawrenceville GA
Peter A. Weimann - Atlanta GA

Assignee:

Lucent Technologies Inc. - Murray Hill NJ

International Classification:

G02B 644

US Classification:

385114

Abstract:

A stack of optical fiber ribbons is enclosed in a buffer encasement having a relatively soft inner portion and an relatively hard outer portion. The inner portion has an interior surface extends around and defines a longitudinally extending passage that contains the stack, and the interior surface closely bounds the stack. The outer portion extends around, closely bounds and contacts the inner portion, and has a modulus of elasticity that is greater than the modulus of elasticity of the inner portion. In accordance with one example of the invention, the inner portion has an exterior surface that extends around and is spaced apart from the passage, and the outer portion has an interior surface that extends around, closely bounds, and engages the exterior surface of the inner portion, whereby the buffer encasement has multiple plies. In contrast, in accordance with another example of the invention, a surface is not defined between the inner portion and the outer portion.