102 results about "Optical fiber cable" patented technology

Disclosed herein is an angular optical component retention and removal system that reduces the amount of space needed to accommodate fiber optic cables and enables optical components to be quickly and easily inserted, retained, and removed from an optical communications system. The optical component retention and removal system may include a single or plural angular retention sections that retain optical components in an angular orientation through a faceplate. The system may further include an insertion / retention mechanism that enables an optical component to be inserted and removed with a single hand. With the system, fiber optic cables extend at an angle from the optical components, requiring less clearance space in front of the faceplate for provision of the fiber optic cables.

The present disclosure provides a micro sheath buffer tube with rollable optical fiber ribbons for optical fiber cable to reduce the overall cable diameter. The buffer tube indicates one or more subunits, a micro sheath layer and a plurality of water swellable yarns. The one or more subunits encloses a plurality of optical fiber ribbons. Each optical fiber ribbon of the plurality of optical fiber ribbons includes 12 optical fibers. Further, each of a plurality of optical fibers is a colored optical fiber. In addition, the micro sheath layer surrounds the one or more subunits. Furthermore, the one or more subunits has a coating layer of low smoke zero halogen material.

This utility model relates to the field of arc flash protection technology and discloses an arc flash protection device for use in a power distribution cabinet. The device includes a mounting frame, an externally fixed mounting plate, a top cover, a connecting plug, an internally inserted optical fiber body, an arc flash probe, a rotatably connected winding roller, a limiting collection mechanism, and an externally mounted auxiliary installation mechanism. During use, the opening and closing degree of the clamping block can be adjusted by pressing a button to accommodate optical fiber cables of different sizes. The movement of the limiting roller ensures constant contact and limiting between the limiting roller and the optical fiber cable. Rotation of the bidirectional threaded rod allows for adjustment of the mounting block position to accommodate different pre-drilled mounting holes in the power distribution cabinet.

Optical terminals and fiber optic connectors using optical terminals disposed within a connector housing are disclosed. The optical terminals allow strain-relieving a ferrule assembly to a fiber optic cable using a sleeve for quick and easy assembly of the connector. The connector may also include a boot received into the connector housing. The connector may also have an outer housing with a transverse wall at the rear end for providing a ferrule assembly position assurance when the outer housing is properly attached to the optically mated fiber optic connector. Connectors may use fiber-based or lens-based optical interfaces along with other optional features such as sealing gasket disposed on the ferrule assembly to protect when mated, a sealing membrane disposed on a front opening of the connector housing for inhibiting moisture, dirt, debris or dust from reaching the optical interface prior to optical mating.

This invention provides a near-infrared therapy device for improving Alzheimer's disease, characterized by comprising: a frequency-modulated drive circuit 1, a near-infrared LD light source 2, an optical fiber coupler 3, a light source power monitoring photodetector (PD) 4, an optical power monitoring circuit 5, an optical fiber beam splitter 6, an MPO optical fiber cable 7, and an optical transmitter 8. The optical transmitter includes an optical transmitter housing 8-1, a fiber-end hemispherical emitting microlens 8-2, and a beam-shaping coupling lens 8-3. This invention can be used to regulate the metabolism and cellular function of meningeal lymphatic endothelial mitochondrial cells, promote meningeal lymphatic transport in the central nervous system, thereby alleviating the pathological symptoms of Alzheimer's patients and enhancing their cognitive function. The device has a simple and compact structure, is easy to plug and unplug, has low optical signal loss, and high coupling efficiency. It can be widely used in novel non-invasive optical brain-computer interface devices and belongs to the field of fiber optic sensing technology.

An intravascular imaging system includes an imaging catheter, a first imaging device that is translatable and rotatable within the imaging catheter and a second imaging device that is translatable and rotatable within the imaging catheter. A connector assembly is disposed adjacent to a proximal end region of the imaging catheter and is configured to connect the imaging catheter to a control unit. The connector assembly includes a first pair of electrical connectors for connecting the first imaging device to the control unit and a second pair of electrical connectors for connecting the second imaging device to the control unit. The imaging catheter may further include an optical imaging device and an optical fiber cable that extends between the optical imaging device and the connector assembly.

A method of deploying an optical fiber cable in a telecommunications network, the optical fiber cable being configured to connect a first optical fiber interface unit in the telecommunications network and a second optical fiber interface unit in a dwelling, is disclosed.

The application belongs to the field of optical fiber cables, and specifically discloses a production method of a hollow-core fiber hybrid cable, a product and equipment thereof, and the production method comprises the following steps: S1, connecting a pressure filling device to the exposed end of a hollow-core fiber wound on a fiber reel, keeping the pressure of the pressure filling device within a set pressure range until the air pressure in the hollow core of the hollow-core fiber is balanced, ending the pressure filling, and then plugging the exposed end of the hollow-core fiber to obtain a pressure-filled hollow-core fiber; and S2, placing the fiber reel of the pressure-filled hollow-core fiber on a wire rack with a heating and heat preservation function, and releasing the pressure-filled hollow-core fiber into an extruder to perform cabling. The application further provides the above hollow-core fiber hybrid cable production equipment. The method and equipment can solve the pollution problem of the air core of the hollow-core fiber hybrid cable and improve the production quality of the hollow-core fiber.

A laser tool apparatus includes a tool body, an optical fiber cable disposed in the tool body, the optical fiber cable including a laser head that emits a laser beam, a shaping optic coaxially disposed downstream of the optical fiber cable, the shaping optic shaping the laser beam emitted from the laser head, and a flexible cable attached to the shaping optic. The flexible cable flexibly directs the laser beam to a desired angle within a borehole.

A fiber optic cable includes a braided core (1) defining a plurality of helical grooves (3a-3c), and one or more optical fibers (4a-4c) disposed along one or more of the helical grooves (3a-3c) of the braided core (1). The elongated structures braided to form the braided core (1) are composed of braided ropes (2a-2c) or monolithic wires (2d-2f). An outer layer disposed over an outer surface of the braided core is composed of a metal layer (5) or a flexible plastic layer (6).

This utility model discloses a hot melt glue gun and an optical fiber cable fixing device. The hot melt glue gun includes a glue gun body, a spool for winding the optical fiber cable, and a guide ring. The glue gun body has a nozzle body, and the guide ring has a first guide hole for the optical fiber cable to pass through. The first guide hole is closer to the nozzle body than the spool. The hot melt glue gun of this utility model embodiment can significantly improve the convenience and efficiency of optical fiber cable wiring, thereby comprehensively improving the convenience and efficiency of FTTR construction.

A modular utility vault system can include a plurality of panels, a clip, and a cover panel. Each panel can include a first side including a first protrusion, a second side including a second protrusion, a lower side having a first length, and an upper side having a second length. The second length is less than first length. The first side of a panel of the plurality of panels is configured to abut the second side of a second panel thereby causing the first protrusion to abut the second protrusion. The clip can be configured to hold the first protrusion to the second protrusion.

This optical fiber cable comprises: a cable core that includes a plurality of optical fiber core wires; a plurality of tensile bodies that are arranged along the cable core; and an outer sheath that covers the cable core and encloses the tensile bodies. The tensile bodies each have an exposed part that is exposed from the outer sheath to the inside of the cable core. In a cross-sectional view of the optical fiber cable, the exposed part includes a portion where a line segment connecting the center of the tensile body and the center of the optical fiber cable intersects with the outer periphery of the tensile body, and the plurality of tensile bodies are arranged on a diagonal line.

A furcation housing for forming a furcation in a fiber optic cable carrying a plurality of optical fibers is disclosed. The furcation housing has a modular construction including a plurality of separate furcation housing components releasably connectable to form the furcation housing. At least two of the plurality of furcation housing components connect to each other through a snap fit connection. The furcation housing components include a base, lid, at last one tube insert, and optionally one or more expansion modules that allow the size of the furcation housing to be scaled with the number of optical fibers. A kit for making the modular furcation housing from the furcation housing components, a method of assembling the components to form the furcation housing, and a method of forming a furcation in a fiber optic cable using the modular furcation housing are also disclosed.

A system may include a processor, a memory, and instructions stored on the memory and executable by the processor to receive, from a fiber optic cable extending along a fluid conduit, an indication of a leak event, and receive, from one or more sensors, measured pressure values of a fluid flow along the conduit. Additionally, the processor may determine one or more estimated time stamps associated with one or more expected pressure changes at one or more locations along the fluid conduit based on the indication of the leak event and a rarefaction wave model, compare the measured pressure values from the one or more sensors to expected pressure values at the one or more locations along the fluid conduit to verify the one or more estimated time stamps, and generate a notification based on the comparison of the measured pressure values and the expected pressure values.

The present disclosure relates to a multi-core optical fiber cable (MCF). In some embodiments, an MCF comprises a plurality of cores, a cladding surrounding the plurality of cores, wherein a refractive index of one or more of the plurality of cores is greater than a refractive index of the cladding, and a coating surrounding the cladding, a distal end free of the coating and having a reduced diameter. The MCF also comprise an annular gap formed between the distal end of the MCF and the inner surface of the cannula, wherein the concentricity of the distal end of the MCF with the inner passage of the cannula is maintained.

The utility model discloses a kind of optical fiber line gluing jigs, it is related to optical fiber line technical field, including slide plate body, the slide plate body upper portion slidingly arranged with positioning member, and is equipped with JUMPER adjusting clamp, positioning member upper portion is equipped with optical fiber main line groove, and is equipped with fixed assembly, and positioning member is located in the side of JUMPER adjusting clamp and is equipped with optical fiber line positioning block, the optical fiber line positioning block upper portion is equipped with two optical fiber inner line placing groove, the JUMPER adjusting clamp upper portion is equipped with JUMPER module placing groove, this optical fiber line gluing jig, by setting slide plate body and JUMPER adjusting clamp cooperation, and setting optical fiber line positioning block for positioning optical fiber line on slide plate body, so that optical fiber line passes every process (peeling, cutting and gluing etc.), and itself position is always maintained on slide plate body, so as to ensure the positioning accuracy and convenience of optical fiber line position, and only need to move slide plate body to transfer position, so as to effectively improve the convenience and stability of optical fiber line gluing.

The application discloses a kind of optical fiber cable fabric pressure reflection layer refractive index pressure test system and method, it is related to optical fiber cable technical field, the system includes: connection positioning module, parameter configuration module, pressure acquisition module, analysis transmission module and cyclic export module;The application is by constructing and including connection positioning, parameter configuration, pressure acquisition, analysis transmission, cyclic export test architecture, let the whole of each link of optical fiber cable fabric test form orderly link, by electromagnetic shield cover to the closed test area, cooperate with the synchronous start operation of data acquisition unit and pressure exertion unit, real-time pressure value and reflection layer refractive index, reflected light power data are synchronously marked and then transmitted, make pressure exertion and multiple types of optical data acquisition form accurate linkage, let test whole process advance according to preset specification architecture, realize the collaborative operation of test process and data acquisition.

The fiber optic cable (1) of the present invention is characterized in that a plurality of F with geometric micro-bending loss characteristics are housed in the internal space (3S) of the sheath (3). μBL_G and optical microbending loss characteristics F μBL_Δβ The fiber (10), when the cable characteristics Dc of the fiber cable (1) are defined using the porosity a of the internal space (3S) and the number of cores b of the fiber (10) housed in the internal space (3S), has the microbending loss characteristic factor F expressed by the following formula. μBL_GΔβ The value is 1.2 × 10 －9 The following F μBL_GΔβ =F μBL_G ×F μBL_Δβ ×Dc.

A fiber optic control system for an unmanned aerial vehicle, operating according to a data transmission protocol and comprising a ground-based transmit module and a fiber optic receiver module attached to the unmanned aerial vehicle, both modules being interconnected via a fiber optic cable, wherein the transmit module comprises a fiber optic transmitter, a remote control connected to the fiber optic transmitter via a first interface converter, and video goggles directly connected to the fiber optic transmitter, wherein the fiber optic receiver module comprises a fiber optic receiver and a coil with a fiber optic cable, wherein the fiber optic transmitter is connected to the fiber optic cable via a first connector, the other end of which is connected to the fiber optic receiver via a second connector, the first output of which is connected to the flight controller of the unmanned aerial vehicle via a second interface converter.while the second output is directly connected to the video transmission point of the unmanned aerial vehicle via the flight controller, characterized in that hardware interface converters RS485↔TTL are used.

The technology is generally directed to a method of mapping fiber networks. The fiber networks may include a plurality of cables, such as fiber optic cables. The cable may be divided into segments. Each cable has a first end segment and a second end segment, each with a known location. When there is a perturbation that causes the cable to vibrate, each segment of the cable may experience an associated strain at a different time. Based on the known location of the perturbation sources, the known location of the end segments, and the relative time that the perturbation is detected at each cable segment, the location of each segment and, therefore, the entire cable may be determined.

A one-to-many optical fiber cable structure and a connecting device thereof include a plurality of optical fiber lines, a covering member, and a bonding structure. One end of the plurality of optical fiber lines includes a bundled segment, and the opposite end includes a branched segment. The covering member covers the bundled segment of the plurality of optical fiber lines. The branched segment is separated from each of the plurality of optical fiber lines. The bonding structure is located at the junction of the bundled segment and the branched segment of the plurality of optical fiber lines. The bonding structure bonds the plurality of optical fiber lines. The bonding structure is covered by the covering member. Thus, the plurality of optical fiber lines have good bending effect at the branched segment. The covering member provides good protection and high-temperature resistance at the bundled segment.

Embodiments of the disclosure relate to an optical fiber cable. The optical fiber cable includes an outer jacket defining a central bore extending along a longitudinal axis of the optical fiber cable. An armor layer is disposed within the first central bore and defines a second central bore extending along the longitudinal axis. A plurality of buffer tubes are disposed within the second central bore. Bedding is disposed between the plurality of buffer tubes and the armor layer. In some embodiments, a binder layer is disposed within the armor layer.

This invention discloses a novel spiral light-collecting device and method for well logging fiber optic cables, along with a cable clamp. The spiral light-collecting device includes a winding body, a cable guiding mechanism, and a cable pulling and compressing mechanism. The cable guiding mechanism is located at the upper end of the winding body, and the cable pulling and compressing mechanism is fitted below the cable guiding mechanism. This invention reduces the time required to fabricate spiral light collection of fiber optic cables from 8 minutes to 20 seconds with a 100% success rate. It solves the problems of stainless steel tube bending and breakage during spiral light collection, leading to rework, and the time-consuming nature of manual spiral light collection.

The present application belongs to the technical field of optical fiber cable detection, and particularly relates to a method for positioning insulation damage of an optical fiber cable, which comprises: applying pressure to a conductive copper tube of the optical fiber cable, and collecting a time-space two-dimensional distribution vibration signal diagram of the optical fiber cable; when a certain sensing channel area on the signal diagram repeatedly appears an impulse abnormal signal group in the time dimension, the impulse abnormal signal group appearing each time presents a bidirectional propagation characteristic occurring with time in the space dimension, and the voltage on the conductive copper tube suddenly drops each time the impulse abnormal signal group appears, then a space position area of the optical fiber cable corresponding to the certain sensing channel area is an abnormal partial discharge area; in the impulse abnormal signal group appearing each time, a space position area corresponding to a sensing channel in which the impulse abnormal signal first appears is locked as an abnormal partial discharge signal occurrence area, and the positioning error is less than the sensing channel length. The present application can accurately realize long-distance distributed insulation damage positioning of the optical fiber cable.

An apparatus for measuring a light level in a fiber-optic cable using a mobile device is disclosed. The apparatus includes an adapter that has a sensor end and a connector. The connector is configured to couple to the fiber-optic cable to be tested. The sensor end includes a gasket for blocking light between the adapter and the mobile device. The apparatus further includes an arm coupled to the adapter. The adapter can be slid between a proximal end and a distal end of the arm. The apparatus also includes an attachment base connected to the arm. The attachment base can hold a back surface of the mobile device.

A system can include a wellbore (10) extending to a first depth within a formation. Further, an in-situ cured pipe liner (100) can be coupled to a wall (11) of the wellbore. One or more fiber optic cables (101, 102, 103) are embedded in the in-situ cured pipe liner (100) to monitor curing of the in-situ cured pipe liner (100) and to record well data. The one or more fiber optic cables (101, 102, 103) can be used to continuously monitor the wellbore (10) during a method of lining the wellbore. The method of lining the wellbore (10) can include inserting the in-situ cured pipe liner (100) into the wellbore, forcing the in-situ cured pipe liner (100) against the wall (11) of the wellbore, curing the in-situ cured pipe liner (100), monitoring the curing of the in-situ cured pipe liner (100) with the one or more fiber optic cables (101, 102, 103) embedded in the in-situ cured pipe liner (100), and coupling the in-situ cured pipe liner (100) to the wall (11) of the wellbore.

A wall-through optical fiber connector (100), comprising a connector main body (11), a traction sheath (12), and a housing structure (13). One end of the connector main body (11) is provided with a mounting hole (111). The mounting hole (111) is configured to mount an optical fiber cable (200). The traction sheath (12) comprises a pulling head (121) and an assembly body (122). One end of the assembly body (122) is detachably mounted on the other end of the connector main body (11) away from the mounting hole (111). One end of the pulling head (121) is rotatably connected to the end of the assembly body (122) away from the connector main body (11). The pulling head (121) and the mounting hole (111) are coaxially arranged. The housing structure (13) and the traction sheath (12) are alternatively mounted on the connector body (11).

A mounting device for a fiber-optic cable that includes a light guide including an optical fiber and a cladding which fully encloses the light guide at least in portions on its outer circumferential face. The mounting device is formed from one piece or from a first and a second segment, and has a first fixing portion and a second fixing portion spatially separated from the first fixing portion. The second fixing portion is arranged concentrically around the first fixing portion, and the light guide is connected or connectable at least partially or in portions materially to the first fixing portion and the cladding is connected or connectable to the second fixing portion at least partially or in portions with a form fit, a force fit and / or materially, so that fixing of the light guide and fixing of the cladding on the mounting device are separated or separable from one another.