Nexans

Alcatel

Alcatel Na Cable Systems, Inc.

David Keller

Randie Yoder

Dan Rouse

Jeff Rosenquist

Paul Kroushl

Norman Andrew Punch, Jr

Terry Gooch

Rakesh Sambaraju

Donald Stevens

John C Rosko

Christopher E Raynor

Leslie P Keller

Pritesh Majmundar

Robert L Pruitt

Wayne Y Chu

Allen L Jones

Jerry Freeman

Bulent Kose

Lisa Huff

Alfred Flores

Bernard Michael Blell

Daniel Poole

Tom C Goebelbecker

Andrew Punch

Chris Raynor

Woody Rhodes

Beni Blell

A cable is provided for detecting tampering thereof. The cable has at least one copper signal cable, a binder, an inner jacket, an armor, and at least one optical fiber sensor element, disposed within the cable. The at least one optical fiber sensor element is configured attenuate under stress to the cable, sufficient to detect a breach or tapping of the copper signal cable therein.

Cable with fiber optic sensor elements

A cable is provided for detecting tampering thereof. The cable has at least two copper signal cables, at least one hollow buffer tubes located abutting the two copper signal cables, an inner jacket, an armor, and at least one loose tube optical fiber sensor element disposed within the cable in a configuration that subjects the optical fiber sensor to external conditions. The at least one loose tube optical fiber sensor element is located between and abutting at least one of the copper signal cables and the at least one adjacent hollow buffer tube. The at least one loose tube optical fiber sensor element is configured attenuate under changes in the external conditions.

A multi-tube optical fiber cable has a core with a first set of one or more optical fiber tubes, each having one or more optical fibers loosely arranged therein. The first set of tubes is constructed of a polymer having a low Young's constant modulus. The core also includes at least two strength members with a first binder arranged around the first set of optical fiber tubes and the strength members, where the first binder is substantially flat in shape such that there is no deformation of the first set of tubes, and where the strength members are offset from a central axis of the cable. The cable maintains a second set of a plurality of optical fiber tubes, each having one or more optical fibers loosely arranged therein, arranged around the outer circumference of the core.

Fiber optic cable with improved flexibility, low temperature and compression resistance

A fiber optic cable is provided having a at least one fiber element, a layer of aramid strength members, and a jacket disposed over said layer of aramid strength members. The layer of aramid strength members is wound at a lay length that is equal to or lesser than a predetermined bend radius.

Fiber optic cable for cordage or tactical applications

A fiber optic cable has at least one fiber and at least one buffer tube surrounding the fiber, with the fiber being loosely held within the buffer tube. A jacket surrounds the tube where the at least one buffer tube is constructed from an extruded transparent polymer, allowing the arrangement of the fiber within the buffer tube to be visible along the entire length of the tube.

Fiber optic cable design with clear buffer tubes

An arrangement provides for an optical fiber cable having a plurality of fiber optic elements including a glass portion and a UV optical coating portion. A plurality of buffer tubes each contain one or more of the plurality of optical fibers made of a fire retardant polymer. A jacket surrounds the buffer tubes also made of a fire retardant polymer. The fire retardant polymers for the plurality of buffer tubes and for the jacket are selected from PVDF (PolyVinyliDene Fluoride) or FRPVC (Fire Resistance Poly Vinyl Chloride). The ratio of total polymer to UV optical coating of the fiber optic elements, by area, is substantially in the range of 5:1 to 9:1.

Fiber optic cable

A fiber optic arrangement includes a primary strand, a plurality of secondary connection strands, each of which is coupled to the primary strand at a notch. Tight buffer optical fibers are attached, one at the end of each of the secondary connection strands.

Tight buffer fiber optic cables for conduits

A multi-tight buffer fiber optic cable includes a first layer of tight buffer optical fibers and at least one second layer of tight buffer optical fibers surrounding the first layer of tight buffer optical fibers. A jacket surrounds the at least one second layer of tight buffer optical fibers, where the first layer of tight buffer optical fibers and the at least one second layer of tight buffer optical fibers are helically wound, and where the at least one second layer of tight buffer optical fibers are helically wound in the same direction as the first layer of tight buffer optical fibers and at substantially the same lay length.

Fiber optic cable design with improved compression test results

A fiber optic cable is provided with a plurality of buffer tubes each with one or more optical fibers, a plurality of strength members and a jacket. The fibers within the cable meet maximum attenuation of substantially 0.07 db increase when decreasing from &#x2212;23&#xb0; C. to &#x2212;60&#xb0; C.

Fiber optic cable with improved low temperature and compression resistance

A fiber optic cable includes a plurality of optical fiber subunits, each of the subunits including four fiber optic elements and an enclosing jacket. A plurality of optical fiber subunit assemblies are also included, each of which includes a plurality of the optical fiber subunits and an enclosing micro-sheath. The subunits are stranded around one another. A sheath encloses the plurality of optical fiber subunit assemblies.

Expanded four fiber unit cable for increased fiber count cables having increased flexibility and fiber strength utilization

An assembly of fiber optic elements includes at least two subunits, each of which has at least one fiber optic unit and a flat binder wrapped over the subunits into an arrangement. The at least two subunits are stranded in a S-Z arrangement at a first lay length and the binder is stranded over the subunits in a uni-directional helical lay at a second lay length. The payoff tension and the first lay length of the subunits, combined with a payoff tension and the second lay length of the binder are simultaneously sufficient to hold the subunits within the arrangement, while being loose enough to allow a single subunit to be removed without destroying the arrangement.

Fiber optic arrangement using flat wide water swellable binder for subunit access

A loose tube fiber optic cable having at least one optical fiber, a loose tube surrounding the fiber, with the tube having an irregular inner surface. A water swellable powder is provided around the fiber and inside the tube, where the particles of the water swellable powder rest in the irregular inner surface of the tube.

Loose tube optical fiber cable design and method for making the same

A composite cable includes at least two optical fiber components and at least one additional component. An irradiated crosslinked jacket surrounds the optical fiber component and the at least one additional component. A shield encloses at least the two optical fiber components within the jacket, where the shield protects the optical fibers from irradiation of the crosslinked jacket.

Composite, optical fiber, power and signal tactical cable

A fiber optic cable having a jacket, at least one tube and at least two fibers within the tube in a loose tube arrangement. The fibers within the tube have a fiber length differential substantially in the range of 0.01%-0.04%.

Optical fiber cable

A fiber cable having a first fiber containing portion with a plurality of optional fibers disposed therein. A second strength portion is separable from the first fiber containing portion arranged in a substantially flat arrangement. The second strength portion is separatably coupled to the first fiber containing portion.

Growing community of inventors

Cary, NC, United States of America

David Keller