An optical cable according to an embodiment of present disclosure includes following features. Asheath layer contains a liquid crystal polymer forming a liquid crystal phase and an olefin resin serving as a principal component, a content of the liquid crystal polymer is 2 mass% to 30 mass% relative to the sheath layer, a major axis of the liquid crystal phase is oriented in a longitudinal direction of the sheath layer, and in a region from a surface of the sheath layer to a depth of 5% of a thickness of the sheath layer, an average ratio of a length of the liquid crystal phase in a major axis direction to a length of the liquid crystal phase in a minor axis direction is 2.0 or more.

An apparatus has a chassis having a base. A first wall extends substantially perpendicularly from the base at a first edge of the base. The first wall is configured to be a first attachment point for an optical cable comprising one or more optical sensors. An opposing second wall extends substantially perpendicularly from the base at a second edge of the base. A mobile attachment point is configured to be a second attachment point for the optical cable. A spring is coupled to the second wall and the mobile attachment point. The spring is configured to provide a specified force as the mobile attachment point moves.

A light guide or beam guiding system with safety component and a method for its breakage monitoring. The present invention provides a fiber optic cable comprising a power fiber as well as first and second channels for break and plug monitoring of the power fiber, wherein the first and second channels may be separate.

Disclosed is a non-steel headline sonar cable having a strength member [5] and a core [1], the headline sonar cable comprising a length of a core-cable [10], the length of core-cable (10] comprising core [1] as well as comprising at least one fiber-optic conductor [2] that is: [i] disposed in a helical shape; and [ii] completely encased in a solid, flexible material. Also disclosed is a process for making a headline sonar cable. The headline sonar cable is capable of being wound on a winch under tensions and surging shocks experienced by a fishing trawler and provides high quality data signal transmission and resolution so as to permit use for transmitting data from high resolution sonars used to monitor fish caught in a fish trawl during operation.

A fiber optic cable in the present disclosure comprises: an outer tube having an inner surface and an outer surface; a fiber in metal tube (FIMT) comprising one or more optical fibers, wherein the FIMT is disposed within the outer tube, and wherein the outer surface of the FIMT and the inner surface of the outer tube form an annular space; and a cured gelling material in the annular space. By incorporating the cured gelling material into the annular space, fluid migration through the annular space can be reduced, and sheer stress for strain coupling of the FIMT and the outer tube can be increased.

Systems and methods for determining the identity of a liquid within a liquid dispenser are provided. A device includes a holder having an opening that is configured to retain the liquid dispenser. A surface of the liquid dispenser is configured to affix a label identifying a liquid within the liquid dispenser. A plurality of lenses are mounted on the holder. Each lens has a respective field of view that includes a respective portion of the surface of the liquid dispenser. In addition, the device includes a plurality of fiber bundles. Each fiber bundle includes an input that is configured to receive a respective signal from a respective one of the plurality of lenses. Further, the device includes an imaging sensor that is configured to receive the respective signals from the plurality of fiber bundles and to form a plurality of images of the surface of the liquid dispenser.

Various implementations of a data communication cable assembly are disclosed that improve the transmission of data signals that traverse long distances. Some cable assembly implementations are configured to transmit data signals via one or more electrical wire mediums and one or more signal extenders that modify the data signals for improved transmission between devices over one or more electrical wire mediums. Other cable assembly implementations are configured to transmit data signals via one or more optical transmission mediums and optical-to-electrical and electrical-to-optical converters for improved transmission of the data signals between devices. Other cable assembly implementations are configured for cascading or daisy-chaining together for transmitting data signals between devices in the optical and/or electrical domain.

A downhole strain sensing cable includes a core optical unit which includes a plurality of optical fibers. A fiber-reinforced polymer matrix layer surrounds and contacts the core optical unit. An extrusion layer surrounds and contacts the fiber-reinforced polymer matrix layer. An outer metal tube surrounds and contacts the extrusion layer.

Disclosed is a novel vascular optical fiber guidewire. The vascular optical fiber guidewire includes a metal axial wire and an optical fiber surrounding the metal axial wire. The optical fiber includes a core wire and a cladding layer covering the core wire. For above vascular optical fiber guidewire, in a part of the optical guidewire that is required to transmit light, a bending radius of the optical fiber around the metal axial wire is greater than a critical bending radius, and in a region of the optical fiber guidewire that is required to scatter light, the bending radius of the optical fiber around the metal axial wire is less than the critical bending radius. The present disclosure is capable of entering a blood vessel by a percutaneous puncture technique, guiding the optical fiber guidewire through a medical imaging device in a blood vessel, and performing side-illumination on the head.

Embodiments include an optical fiber cable comprising a length extending between a first end and a second end, a central cooling tube, a plurality of optical fibers disposed radially around the cooling tube, each optical fiber comprising a fiber core and a cladding disposed around the fiber core, an outer protective cover, and an inner thermal filler disposed between the outer protective cover and the central cooling tube and surrounding each of the optical fibers, wherein each of the central cooling tube, the outer protective cover, the inner thermal filler, and the plurality of optical fibers extend the length of the cable. Various systems and methods for removing imperfections from individual optical fibers and for distributing power across long distances using the optical fiber cable are also provided.