1948 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.

In the present invention, a location joint monitoring solution based on the state of a distributed optical fiber and based on an ultra-short baseline is used, and the solution consists of a distributed optical fiber monitoring device, an ultra-short baseline positioning device and a health monitoring host computer. The distributed optical fiber monitoring device consists of a distributed optical fiber cable (300), a distributed optical fiber demodulator (421), etc. The ultra-short baseline positioning device consists of an ultra-short baseline array (200), an underwater beacon (100), a signal processing device (411), etc. The health monitoring host computer (431) can perform signal conditioning, digital signal processing and parameter estimation by means of the signal processing device and the distributed optical fiber demodulator and by using acquired data such as key point locations, deformation and postures, and complete space curve reconstruction of an underwater riser by means of a space curve reconstruction algorithm and an existing finite element analysis software platform, thereby realizing visual outputs of an underwater state of a marine riser.

The invention discloses an optical cable intelligent label full life cycle management method and system, and the method comprises the steps: extracting structured data through an XML analysis engine based on a configuration file, carrying out the semantic analysis of an unstructured text, carrying out the regression quantification of text features through combining symbol quantiles, and constructing a knowledge graph; according to the knowledge graph, dynamically adjusting the character size, the two-dimensional code position and the error-tolerant rate by adopting a generative adversarial network technology according to the optical cable type and the pasting scene, and generating optical cable intelligent labels adaptive to different scenes; collecting a label image, and converting the label image into structured label identification data including an optical cable type, a connection relation and a transmission signal type by adopting a computer vision technology; the identification data and the knowledge graph are compared, consistency is checked, potential abnormity is analyzed, influences are evaluated, and graded early warning is generated; a micro-service architecture system is constructed, data analysis, AI generation, an intelligent recognition engine and knowledge graph service are integrated, and full-life-cycle management is achieved. The intelligent level of full-life-cycle management of the optical cable label is improved.

In some embodiments, a system for producing fluid from a well can include an electrical submersible pump (ESP) disposed in a wellbore of the well and configured to pump the fluid. The system may further include a distributed acoustic sensing (DAS) system, for example having an interrogator unit and a fiber optic cable extending downhole in the wellbore. An end of the fiber optic cable can be disposed downhole relative to the ESP. In embodiments, the system may further include a controller configured to receive data from the DAS system, process the data to detect a slug, determine a parameter of the detected slug, and alter operation of the ESP in response to determining that the parameter exceeds a threshold.

The invention provides a hollow-core optical fiber cable fiber breakage detection method based on a reference optical fiber and an optical cable, and belongs to the technical field of optical fiber communication. The method comprises the following steps: acquiring monitoring data of a reference optical fiber in a hollow-core optical fiber cable, and performing quality evaluation on the data to generate a signal quality comprehensive score; when the score is higher than a preset threshold value, feature extraction and dynamic weighted fusion are carried out to generate a comprehensive feature vector; outputting a fiber breakage probability by using the fiber breakage state recognition model, calculating a fiber breakage risk value through a prediction model in combination with time sequence data, and obtaining a fiber breakage risk index through a risk fusion algorithm; and finally, matching and executing a hierarchical response strategy according to the risk index. According to the invention, multi-modal data fusion, intelligent state identification and active early warning are realized, and the reliability, precision and operation and maintenance efficiency of broken fiber detection are significantly improved.

A computer-implemented method useful for performing seismic tomography, including obtaining seismic data comprising distributed acoustic sensing (DAS) data, comprising at least one of P-wave or S-wave travel times from a plurality of seismic events to a plurality of recording stations coupled to a network of optical fibers in a geological structure; and generating tomography data from the DAS data, wherein tomography data is useful for characterizing the geological structure. We employ distributed acoustic sensing data recorded along a 100-km fiber-optic cable traversing the caldera to image its subsurface structure. Our images highlight a definite separation between the shallow hydrothermal system and the large magma chamber located at ˜12 km depth. The combination of the geological evidence with our results shows how fluids exsolved through second boiling provide the source of the observed uplift and seismicity. Thus Fiber-seismic tomography reveals that the unrest in the Long Valley Caldera is likely driven by fluid from second boiling, not new magma intrusion.

The invention relates to the field of optical fiber cable preparation, and discloses an optical fiber cable preparation method and a pressure control device.The method comprises the steps that an optical fiber preform is prepared, and a sleeve is coaxially assembled outside the optical fiber preform; extending the optical fiber preform and the sleeve through two extension pipes; a cavity between one ends of the two extension pipes is blocked through a blocking piece; performing wire drawing treatment on the optical fiber preform, and dynamically adjusting micro-positive pressure and negative pressure in the optical fiber preform and between the optical fiber preform and the sleeve at the same time; the device has the beneficial effects that the problem of low stacking efficiency of the hollow optical fiber caused by deformation of the capillary tube is avoided by setting the micro-positive pressure in the optical fiber preform 1 and the negative pressure between the optical fiber preform 1 and the sleeve 2, the manufacturing efficiency is improved, and the product quality is improved.

A fiber sensing control device (FSCD) is provided for protecting a network infrastructure in an optical fiber network against intrusive fiber sensing. The FSCD resides on an optical fiber cable at a boundary between the first network segment containing the network infrastructure that is to be protected and a neighboring network segment. The FSCD comprises at least one blocking element that can block sensing of backscattered light on at least one optical fiber of the optical fiber cable.

Disclosed are a device and method for detecting and identifying shallow-stratum foreign objects based on distributed acoustic sensing. The device includes a vibrating sensitivity-enhanced fiber optic cable, a distributed acoustic sensing demodulator, a vibrator system, a vibration data processing unit, a velocity structure inversion unit and an AI-aided locating and identification unit. The distributed acoustic sensing demodulator transmits vibration signals to the vibration data processing unit for preprocessing to obtain waveform signals; the velocity structure inversion unit performs inversion to obtain the shallow-stratum underground velocity structure; positions of shallow-stratum foreign objects are identified through the underground velocity structure and abnormal waveforms; and the types of shallow-stratum foreign objects are identified. A distributed acoustic sensing method for fiber optic cables is used to obtain vibration signals, velocity imaging is performed on a shallow-stratum velocity structure, and AI is utilized to achieve locating and type identification of shallow-stratum underground foreign objects.

Numerous examples are disclosed of a fiber optic cable coupling assembly and components thereof. In one example, a fiber optic cable coupling assembly comprises a coupling board containing a plurality of lasers and a plurality of photodiodes; and a mechanical-optical interface comprising a first plurality of ferrules and a plurality of lasers, where each laser in the plurality of lasers is aligned with a ferrule in the first plurality of ferrules; and a second plurality of ferrules and a plurality of photodiodes, wherein each photodiode in the plurality of photodiodes is aligned with a ferrule in the second plurality of ferrules.

A method to perform measurements of a field is disclosed. The method includes disposing a landing dock at a target location in the field, the landing dock being coupled to a fiber optic cable for distributed fiber-optic sensing measurement, directing an unmanned aerial vehicle (UAV) to land on the landing dock, the UAV including an interrogator unit, communicatively coupling, in response to the UAV landing on the landing dock, the interrogator unit and the fiber optic cable, sending, by the interrogator unit, a light pulse to the fiber optic cable, receiving, by the interrogator unit and in response to sending the light pulse, a backscattered light signal from the fiber optic cable, and generating, by the interrogator unit and based on the received backscattered light signal, a measurement of the target location.

The utility model discloses an optical fiber array butt joint device, which comprises a butt joint seat, a round rod and an optical fiber seat, a rectangular groove is arranged at the upper end of the butt joint seat, the inner end of the butt joint seat is in threaded connection with a miniature threaded rod, and the inner end of the miniature threaded rod is fixedly provided with a side edge rubber pad; an upper rubber pad is fixedly mounted at the lower end of the round rod, a spring is fixedly mounted at the upper end of the upper rubber pad, and the spring is arranged on the outer side of the round rod; a pressing plate is rotatably mounted at the upper end of the optical fiber seat, silica gel pads are fixedly adhered to the inner ends of the pressing plate and the optical fiber seat, a base is fixedly mounted at the lower end of the butt joint seat, and a supporting frame is fixedly mounted at the upper end of the base. And the optical fiber array can be pressed down and limited, so that displacement during butt joint operation is avoided, optical fiber cables can be arranged and limited conveniently, scattering is avoided, and the butt joint convenience is improved.

The present invention discloses a hollow fiber discharge splicing platform and method for an active optical fiber cable, which includes a discharge splicing platform. The discharge splicing platform includes a splicing unit, a wind shield and an optical fiber fixture. The optical fiber fixture includes a bottom plate and a cover plate. A first optical fiber positioning groove and a second optical fiber positioning groove are arranged on the bottom plate. The first optical fiber positioning groove and the second optical fiber positioning groove are coaxially arranged. An image processing system and a pressing foot are arranged inside the wind shield. The present invention can complete the positioning of the optical fiber without loading the hollow optical fiber by means of two support points plus a limiting point, effectively improving the discharge splicing efficiency of the hollow anti-resonant optical fiber.

In some embodiments, a fiber optic cable may be monitored while reducing false positives from disturbances in trusted areas. In some embodiments, a system includes a light source, a first remote termination unit in a trusted area, and a second remote termination unit in another trusted area. The light source emits light through the fiber optic cable, which passes through the first remote termination unit, an untrusted area, and then the second remote termination unit. The remote termination units reflect portions of the light back towards the light source. The system uses a prediction model to detect disturbances in the untrusted area based on the reflected light data.

The present invention discloses an integrated bronchoscope, comprising a handle, characterized in that a display connector is fixedly installed with a thread on the top of the handle, a display is fixedly installed at the end of the display connector, the display is electrically connected to a fiber optic cable bundle, the end of the fiber optic cable bundle is electrically connected to the bronchoscope, one side of the handle is connected to a three-way device through a connecting pipe, the bottom of the handle is fixedly connected to a guide tube, the bottom of the guide tube is connected to a suction tube, a negative pressure chamber is provided inside the handle, a negative pressure pump and a rechargeable battery are fixedly installed inside the negative pressure chamber, the negative pressure pump is electrically connected to the rechargeable battery, the output end of the negative pressure pump extends out of the interior of the handle and is connected to the exhaust hole on the side wall of the handle, and the input end of the negative pressure pump extends out of the interior of the negative pressure chamber and opens vertically upward.

The utility model relates to the technical field of communication equipment, in particular to an optical fiber fusion splicing module box which comprises a box body with an opening in the upper portion, a box cover detachably connected to the upper end of the box body to cover the opening, an adapter installed at the front end of the box body, an anti-disengaging end shell clamped at the front end of the box body and arranged on the adapter in a sleeving mode and a fusion splicing clamping base. The welding clamping seat can be connected to the inner wall of the box body in a turnover mode and is provided with a plurality of wire grooves for clamping and embedding cables. The welding clamping seat of the optical fiber welding module box can be connected to the inner wall of the box body in a turnover mode, the welding clamping seat can be turned over to be in a vertical state in the wiring process, occupied space is reduced, a worker can conveniently insert a wiring terminal of an optical fiber cable into a wiring port of an adapter, the flexibility and efficiency of optical fiber harness construction are improved, and the construction cost is reduced. After wiring is completed, the welding clamping seat is folded to be in a horizontal state, and the protective sleeve fixedly sleeved at the welding position of the cable is clamped in the wire groove.

Systems, methods, and structures for efficiently identifying individual fibers located in a deployed cable that advantageously reduces laborious field efforts while reducing service outage time. The systems and methods locate a targeted fiber in a cable (“Cable ID”) and then identify the targeted fiber (“Fiber ID”) by detecting DFOS signal attentions—without cutting the optical fiber. Two distinct determinations may be made namely, Cable ID and Fiber ID. DFOS operation detects vibration signals occurring along a sensor fiber. As implemented, Cable ID is an interactive-machine learning-based algorithm that automatically locates cable position along a sensor fiber route. Fiber ID detects a signal attenuation by bending a group of fibers with bifurcation to pinpoint a targeted individual fiber within a fiber cable.

A distributed data processing system includes a first data processing system and a second data processing system. The first data processing system includes a first housing, a first data processor, and a first optical module that is configured to convert output electrical signals from the first data processor to output optical signals that are provided to a first optical fiber cable. The second data processing system includes a second housing, a second data processor, and a second optical module that is configured to convert output electrical signals from the second data processor to output optical signals that are provided to a second optical fiber cable. An optical power supply includes at least one laser that is configured to provide a first light source to the first optical module through a first optical link and to provide a second light source to the second optical module through a second optical link.

The invention discloses a stainless steel welded pipe weld joint laser cleaning machine which comprises a supporting table composed of a base, a first supporting table and a second supporting table and further comprises a material frame composed of a rotating shaft, a first material disc and a second material disc. The laser cleaning machine is composed of a sliding base, a laser cleaning head, a welding seam scanning camera, a hard wire pipe, an optical fiber cable drag chain and a laser cleaning machine cabinet, the material frame is rotationally installed on the supporting table, and a synchronous belt electric guide rail used for adjusting the position of the laser cleaning head is fixedly installed on the supporting table; according to the stainless steel welded steel pipe laser cleaning device, welded steel pipes only need to be orderly placed in the corresponding material grooves in the first material disc and the second material disc, then the welding seam scanning camera is driven by the synchronous belt electric guide rail to conduct scanning positioning on welding seams, and the laser cleaning head corresponds to the welding seams on the stainless steel welded steel pipes; and finally, the stainless steel welded steel pipe is driven to rotate through the first rotating mechanism and the second rotating mechanism, and 360-degree laser cleaning can be automatically conducted on the welding seam of the stainless steel welded steel pipe.

An apparatus, system and method for adjustable magnet assemblies that deliver power through fiber optics. An energy storage device that includes a rechargeable battery is located in a magnetron assembly and a fiber optic cable located outside the magnetron assembly delivers power signals to recharge the rechargeable battery.

This application describes techniques for testing fiber optic telecommunication systems, such as undersea fiber optic cable systems. Testing terminals may be deployed at a location of terminating equipment for a fiber optic cable. The testing terminals may be operated remotely. The testing terminals may be configured to programmatically test the cable by loading one or more tests and automatically configure the cable's transmitters and receivers based on predetermined loading schemes selected based on the tests to be performed. The testing terminals may iterate over channels and fiber pairs of the cable and may use back-to-back tests to remove artifacts from test results. Using the described techniques, a cable's channels and fiber pairs can be fully characterized in the amount of time afforded for a typical testing schedule, which was not generally possible using conventional testing.

A rack or cabinet system, including: a cabinet adapted to receive a circuit pack; a trough assembly movably coupled to the cabinet, where the trough assembly is adapted to receive a plurality of client fibers from a faceplate of the circuit pack; and a hinge assembly coupled to the cabinet and adapted to pivot the trough assembly away from / towards a front portion of the cabinet and the circuit pack. The trough assembly and the hinge assembly are collectively adapted to pivot the trough assembly away from the front portion of the cabinet and the circuit pack to move the plurality of client fibers such that a plurality of fabric cables coupled to front-side portions of the circuit pack behind the plurality of client fibers can be accessed by a user.

Disclosed are systems and methods that employ distributed fiber optic sensing (DFOS) / distributed acoustic sensing (DAS) to monitor and provide real-time estimation of ice thickness on fiber optic communications facilities, and which integrate DSA data with a hybrid processing technique that combines frequency domain decomposition (FDD) and stochastic subspace identification (SSI). Aspects of our innovative systems and methods include: i) Hybrid Signal Processing Techniques; ii) Real-time, Continuous Ice Monitoring; iii) Enhanced Noise Robustness and Non-linear Dynamics Handling; and iv) Adaptability and Scalability.

A multi-fiber push-in (MPO) connector configured to be assembled in situ after being pushed through a conduit may include a ferrule portion configured to terminate optical fibers of a multi-fiber cable and a subassembly portion. The subassembly portion may be configured to include an adapter portion that may be configured to couple with the ferrule portion, a retention portion that may be configured to couple with the multi-fiber cable, and a biasing portion that may be configured to extend on one or more sides of an optical fiber of the multi-fiber cable and couple the adapter portion with the retention portion. The biasing portion may be configured to apply one or more biasing forces to the adapter portion at one or more sides of the optical fiber to urge the ferrule portion in a forward direction such that the one or more biasing forces are balanced at such one or more sides of the optical fiber.

The invention discloses a conveying device which comprises a first conveying line body, a second conveying line body and a third conveying line body. The multiple layers of second conveying line bodies are arranged on the upper side and the lower side of the first conveying line body; the connection module comprises a lifting mechanism and a connection stator, the connection stator is connected with the first track stator through an optical fiber cable, and the lifting mechanism drives the connection stator to ascend and descend so that the connection stator can be in butt joint with the first track stator or the second conveying line body; and the power distribution module is connected with the first conveying line body, the second conveying line body and the connection stator through power lines. The connection stator on the connection module in the conveying device is connected with the stator on the middle layer in the conveying device through the optical fiber line, and the required connection line length and distance are short during movement, so that the stability of data signal transmission is improved, the connection line is simplified, the arrangement number of the optical fiber line is reduced, and the manufacturing cost is reduced.

The embodiment of the invention provides a hollow-core anti-resonance optical fiber, a preparation method thereof and an optical fiber cable. The hollow-core anti-resonance optical fiber comprises an outer tube; the capillary tubes are arranged on the inner wall of the outer tube at equal intervals in the extending direction of the outer tube; the air fiber core is surrounded by the plurality of capillary tubes; wherein the outer tube and the capillary tube are made of 27As < 2 > Te < 2 >-39GeSe < 2 >-34As < 2 > Se < 3 > glass. By applying the hollow-core anti-resonance optical fiber provided by the invention, low-loss transmission facing a wave band of 12-30 [mu] m can be realized.

The utility model relates to the technical field of light fault detection, in particular to an optical fiber fault positioning device which comprises a bottom plate, the outer surface of the bottom plate is fixedly connected with a motor base, the outer surface of the motor base is fixedly connected with a motor, the output end of the motor is fixedly connected with a driving rotating shaft, concave wheel grooves are formed in the two sides of the bottom plate, and the driving rotating shaft is fixedly connected with the driving rotating shaft. The inner surface of the concave wheel groove in the left side is rotationally connected with the outer surface of a driving rotating shaft, and the inner surface of the concave wheel groove in the right side is rotationally connected with a driven rotating shaft. The advantages of the utility model are that the fan and the heating wire of the device can blow heat of the heating wire to the surface of the optical fiber cable through the air outlet pipe and the air outlet when the surface of the optical fiber cable is covered with ice and the device is difficult to walk, so that the ice covered on the surface is melted, and the smooth operation of the device is ensured; the two ventilation openings of the device can allow airflow to pass through the device, so that the influence of wind power on the device is reduced, and the shaking amplitude is reduced.

A system includes a substrate on which a data processor and a connector block are mounted. The connector block has a first array of electrical connectors on a first surface, and a second array of electrical conducts on a second surface that is oriented at an angle between 45° to 135° relative to a main surface of the substrate. At least a portion of the first array of electrical connectors are electrically coupled to the data processor, and the second array of electrical contacts are electrically connected to the electrical contacts of a pluggable module. The pluggable module includes an optical module, at least one first optical connector, a first fiber optic cable optically coupled between the optical module and the first optical connector, and a fiber guide positioned between the optical module and the first optical connector and provides mechanical support for the optical module and the first optical connector.

The utility model relates to the technical field of optical fiber distribution, and discloses an optical fiber distribution frame, which comprises a main body assembly and a supporting transverse plate, the wire clamp assembly is arranged on one side of the supporting transverse plate and comprises a clamping piece, the clamping piece is located on one side of the supporting transverse plate and comprises a fixing plate, a connecting plate, an annular block, a movable column, a rotating plate, a clamping block, a connecting block and an arc-shaped plate, the fixing plate is fixed to the supporting transverse plate, the connecting plate is arranged on one side of the fixing plate, and the annular block is arranged on the other side of the fixing plate. And the annular block is fixed on one side of the connecting plate. The beneficial effects of the utility model are that by adopting the design of the annular collecting groove, one optical fiber cable corresponds to one groove, the mutual winding and interference among the optical fiber cables are effectively avoided, the position of each cable can be fixed by pressing the button, the optical fiber is prevented from deviating, the stability and reliability of an optical fiber communication system are improved, and the service life of the optical fiber communication system is prolonged. And meanwhile, the locking state of a certain wire can be unlocked independently, so that the maintenance of the optical fiber is facilitated.

Systems and methods include an optical switch system which provides a combination of μLED arrays, PDs, imaging fiber cables, and crosspoint switch on a single chip. The system includes one or more input ports with each input port configured to connect to an input fiber bundle. The system additionally includes one or more output ports with each output port configured to connect to an output fiber cable, wherein each of the input fiber bundle and the output fiber cable include a plurality of fiber cores. An electrical crosspoint switch is connected to the one or more input ports and the one or more output ports, wherein the electrical crosspoint switch is configured to connect a given input port to a corresponding output port, including all signals in the input fiber cable to the corresponding output fiber cable.