Fabric encased micro tubes for air blown fibers

    公开(公告)号:US10234649B2

    公开(公告)日:2019-03-19

    申请号:US15640784

    申请日:2017-07-03

    发明人: Jerry L. Allen

    IPC分类号: G02B6/44 G02B6/50

    摘要: A device to be inserted into a conduit includes at least one tube intended to receive optic fibers or micro fiber optic cables therein. A jacket surrounds the tube. In an embodiment where there are a plurality of tubes, they are loosely aligned within the jacket. In another embodiment, opposed surfaces of the jacket are attached to each other to form compartments for each tube. In still another embodiment, the jacket holds the tubes generally in a bundle. The jacket of a tube may also be attached to one or more innerducts, each of which can receive a fiber optic cable. Alternatively, an innerduct may be attached to two jackets each of which carry a tube therein.

    Intrusion detection system for an undersea environment

    公开(公告)号:US09927263B2

    公开(公告)日:2018-03-27

    申请号:US15287013

    申请日:2016-10-06

    发明人: Randy Young

    摘要: An intrusion detection system includes a suspended optical fiber having a neutral buoyancy and an optical time-domain reflectometer connected to the suspended optical fiber at an origin location. The suspended optical fiber is connected to a mooring at a first end of the suspended optical fiber and further includes at least one terminal end. The optical time-domain reflectometer includes a light source operable to emit an optical pulse of light into the suspended optical fiber from the origin location toward the terminal end, and a processor operable to receive an optical return signal from the terminal end of the suspended optical fiber or from a deformation created by a disturbance to the suspended optical fiber and to determine a location and a type of the disturbance based on an analysis of at least a time to receive the optical return signal and a magnitude of the optical return signal.