1057 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 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.

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.

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 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.

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 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.

Disclosed is an integrated distributed fiber optic sensing (DFOS) system and method employing generative Artificial Intelligence (AI) and Large Language Models (LLM) which advantageously enhances operational efficiency and network performance. Operational components include a Live Infrastructure Query, a Live Construction Query, and a Live Anomaly Query, which, collectively provide an interactive AI / LLM-driven set of solutions fused with fiber optic sensing technologies that effortlessly identify optical fiber cable anomalies in real-time, thereby mitigating optical fiber cable damage and providing real-time reports on maintenance activities on infrastructure facilities—including communications—and services built thereupon. Advantageous features include: i) live-updated database; ii) LLM system specifically for telecommunications networks; iii) Real-time response facilitation between field operations and infrastructure; iv) Comprehensive reporting capabilities—daily, weekly, monthly, and yearly; vi) Intelligent event-based recommendations for preventing fiber damage; and vii) Proactive suggestions derived from historical data for preemptive disaster prevention.

The invention discloses an abnormal section positioning method suitable for a hollow-core optical fiber cable and a special test disc tool, and belongs to the technical field of hollow-core optical fiber cables, and the method comprises the following steps: configuring the special test disc tool and a test device; coiling the hollow-core optical fiber cable to be tested on the special test disc in a partitioned manner; performing a power return-to-zero test on the test device; connecting the testing device to the inner and outer ends of the to-be-tested hollow-core optical fiber cable, and carrying out primary measurement; and judging whether the result is abnormal or not, removing the hollow-core optical fiber cable in a partition cutting mode after the result is abnormal, connecting the remaining optical cable into the test device for re-measurement, and gradually switching the inner end and the outer end of the test optical cable in the partition cutting mode until the abnormal section of the optical cable is positioned. According to the method provided by the invention, the problem that the abnormal section positioning requirement of the optical cable cannot be met by a conventional winding method can be effectively solved, repeated rewinding of the hollow-core optical fiber cable is avoided, and the efficiency and precision of positioning the abnormal section of the hollow-core optical fiber cable are improved.

A female hardened fiber optic connector for terminating an end of a fiber optic cable that is suitable for making an optical connection with another hardened cable assembly and cable assemblies using the same are disclosed. The female hardened fiber optic connector includes a connector assembly, a crimp body, a connector sleeve, and female coupling housing. The connector sleeve has one or more orientation features that cooperate with one or more orientation features inside the female coupling housing. The crimp body has a first shell and a second shell for securing the connector assembly at a front end of the shells and a cable attachment region rearward of the front end for securing a cable.

A cable has a first end and a second end with the length of the cable being defined therebetween. The cable includes an outer jacket of plurality of internal lines disposed within the outer jacket and a plurality of labels. A plurality of labels are secured at predetermined intervals along the length of the cable. Each label of the plurality of labels includes an electronic tag. Each electronic tag includes information relevant to the cable and is configured to be read by a scanner external to the cable.

The invention provides an overflow monitoring system. The overflow monitoring system comprises a sleeve, an optical fiber cable, a monitoring device short section and a monitoring terminal, the monitoring device short section is arranged on the sleeve; the first end of the optical fiber cable is connected with the monitoring device in a short-circuit mode, the optical fiber cable is arranged on the outer side surface of the sleeve and extends to the second end of the sleeve in the axial direction of the sleeve, and the second end of the optical fiber cable is electrically connected with the monitoring terminal. By utilizing the support of the sleeve, the signal noise caused by the vibration of the device can be effectively reduced, so that the short section of the monitoring device can go deep into the stratum for monitoring, the optical cable can be supported, the real-time communication between the monitoring terminal on the earth surface and the monitoring device can be realized, and the real-time monitoring on overflow can be realized; therefore, the overflow monitoring is more stable and reliable.

A multicore fiber cable fanout device configured to connect a multicore fiber (MCF) cable comprising M MCFs having N cores with M×N single core fiber (SCP) pigtails is provided. The fanout device can include a housing enclosure and M MCF-to-SCF fanouts within the housing enclosure. The M×N SCF pigtails can be grouped in M×N / K SCF groups containing K SCF pigtails.

The invention discloses an optical fiber type tip timing sensor based on an APD array imaging method. The optical fiber type tip timing sensor comprises N transmitting end couplers, a transmitting optical fiber, a transmitting optical fiber bundle cable, a receiving and transmitting end beam combiner, a receiving and transmitting optical fiber cable, a probe, a receiving optical fiber bundle cable, a beam combiner, a receiving optical fiber and N receiving end couplers. N > = 5; the N transmitting end couplers are respectively connected into the laser transmitters with different wavelengths, and are respectively connected with the beam combiner at the transmitting end through N transmitting optical fibers; the N receiving end couplers are respectively connected with the beam combiner of the receiving end through N receiving optical fibers; the beam combiner of the transmitting end and the beam combiner of the receiving end are respectively connected with the input end of the beam combiner of the receiving and transmitting end through a transmitting optical fiber bundle cable and a receiving optical fiber bundle cable; the output end of the transceiving end beam combiner is connected with a probe through a transceiving optical fiber cable; and a to-be-detected blade is arranged in front of the probe.

A system for monitoring and establishing mechanical properties of a formation may include a strain sensing system and a controller. The strain sensing system may include an elongated fiber, a light emitter, and a detector. The elongated fiber may be or may include a fiber optic cable. Monitoring and establishing mechanical properties of a wellbore may include determining a stress applied to a casing of a length of the wellbore and sensing, with the strain sensing system, a strain that may be resultant from the stress applied to the casing. Based on the stress applied to the casing and the sensed strain, the controller may determine a value related to a mechanical property of the formation extending along the wellbore.

A system for determining one or more characteristics of a multiphase fluid flow within a flow line of a hydrocarbon well. The system can include a multiphase flow metering probe, a measurement device, and a computing device. The multiphase flow metering probe may comprise a unitary assembly of components including an optical fiber cable, at least one flow conditioning element, at least one optical sensor, and a mounting component designed to secure the multiphase flow metering probe within the flow line. Signals generated by the at least one optical sensor of the multiphase flow metering probe can be received by the measurement device and subsequently transmitted to the computing device for determining various characteristics of the multiphase fluid flow.

An example test system includes a probe card configured to contact a device under test (DUT); a module including a first optical connector configured to contact a second optical connector on the DUT, with the first optical connector being for a fiber optic cable; and a motion system configured to move into, and out of, contact with the module. When the motion system is in contact with the module, the motion system is configured to move the module relative to the DUT in order to align the first optical connector to the second optical connector.

Fibre optic cables 101-120, for use in a data communications network are adapted to be laid, along at least part of their length within a pipe (or conduit) 1 carrying a fluid and comprise fibres adapted for sensing the condition within or in the vicinity of the pipe 1. The cables 101-120 are constructed with sensing fibres 12 provided in edge interstitial spaces 19 between data fibre bundles 11. In further embodiments, the cables may comprise electrical conductors 22, 23 or one or more power fibres 15. Optionally, the cable is additionally provided with outer sensing fibres 14 which replace one or more wires in the armour 32. The cables 101-120 are optionally adapted to remain stably positioned in the invert 2 of the pipe 1 by suitable selection of stiffness and relative density compared to the fluid and / or the provision of surface formations to reduce lift and / or drag forces experienced by the cable as a result of fluid flow.

A method for laying an optical fiber cable including a cable core, a cable sheath that includes an inner jacket and an outer jacket, and a tensile strength member, a first kinetic friction coefficient of the outer jacket being smaller than a second kinetic friction coefficient of the inner jacket to the duct, first flame retardance of the inner jacket being higher than the second flame retardance of the outer jacket. The method includes wiring the optical fiber cable in an outdoor side via the duct, drawing the optical fiber cable from the outdoor side to an indoor side, making a part of the optical fiber cable as an optical fiber cable for indoor wiring by removing the outer jacket after the drawing of the optical fiber, and wiring the optical fiber cable for indoor wiring in the indoor side.

A system for calibrating the light sensitivity of a camera includes a light emitter for emitting a light pulse, a fiber splitter for receiving the light pulse via an input port and providing first and second portions of the light pulse to respective first and second output ports, and a light collector for receiving the first portion from the first output port and converting the first portion to a first signal representative of a light characteristic of the first portion. A first fiber optic cable connects the light emitter and the input port, a second fiber optic cable connects the first output port and the light collector, and a third fiber optic cable has a first cable end connected with the second output port and a second cable end for emitting the second portion of the light pulse for capture by the camera. A related method is also provided.

The present disclosure provides a hybrid optical fiber comprising a hollow core fiber section having a first end and a second end, one or more end fiber sections coupled to at least one end of the hollow core fiber section, and optionally a buffer tube encapsulating at least the hollow core fiber section. A hybrid optical cable may include a sheathing and two or more such hybrid optical fibers. Methods may include fabricating hybrid optical fibers by coupling glass core fiber sections to hollow core fiber sections, winding on a reel, and testing. Another method may involve installing and coupling hybrid optical fibers based on inspection results. The hollow core fiber sections may comprise various designs including anti-resonant, photonic bandgap, or nested structures.

A self-powered optical amplifier (SPOA) may include a proximal tap connected to a fiber optic cable, a proximal wavelength division multiplexer (WDM) optically connected to the proximal tap, and an Erbium doped fiber optically connecting the proximal WDM to a distal WDM. The SPOA may further includes a distal tap optically connected to the distal WDM, a pump optically connected to the distal WDM, and a controller optically connected to the proximal tap, the distal tap, and further electrically connected to the pump and a power supply.

The invention discloses an optical fiber cable intelligent fault diagnosis system based on artificial intelligence, and relates to the technical field of fault diagnosis. The method comprises the following steps: constructing a distribution map of an optical fiber cable, dividing the optical fiber cable into a plurality of monitoring sections, setting an acquisition unit, obtaining acquisition data, obtaining historical fault records and historical acquisition data and data characteristics of the optical fiber cable, and constructing a fault judgment model according to historical fault records and historical acquisition data of different monitoring sections. The method comprises the following steps: acquiring real-time acquired data, judging whether a fault exists or not by utilizing a fault judgment model, generating a fault judgment record, acquiring the fault judgment record with a misjudgment state and environmental parameters thereof, constructing a misjudgment evaluation model, and evaluating whether the fault judgment record has misjudgment or not by utilizing the misjudgment evaluation model; an effective fault judgment mechanism can be formed and optimized, and the accuracy of fault judgment can be improved.

An optical fiber cable includes: a core including an optical fiber; a first protective layer covering the core; and a second protective layer covering the first protective layer. An outer circumferential surface of the first protective layer has: one or more integrated regions fixed to or in pressure contact with the second protective layer; and one or more non-integrated regions neither fixed to nor in pressure contact with the second protective layer.

The invention relates to a socket insert (1) for a fiber optic subscriber connection for installation in an installation box (25). The socket insert (1) comprises a support plate (2) for fastening the socket insert (1) to an installation box (25) and a coupling holder (3) connected to the support plate (2) for a fiber optic coupling device (4). The socket insert (1) further comprises a splice cassette (5) at least indirectly connected to the support plate (2) for receiving at least one fiber optic cable (6).

The utility model relates to the technical field of well completion and cementing equipment, in particular to a casing centralizer for an optical fiber cable well, and aims to solve the technical problems that in the prior art, due to the fact that the casing centralizer is limited by the fixed outer diameter of rigid design, the casing centralizer is difficult to adapt to different well diameters, and a pipe string is difficult to put down or the centering degree of the casing string is low. The casing centralizer comprises a ring seat assembly and a ball cage made of an elastic material, wherein the ring seat assembly is provided with an optical fiber cable fixing hole. The ring seat assembly comprises a first ring seat and a second ring seat. The first ring base, the ball cage and the second ring base are arranged on the sleeve in a sleeving mode and are sequentially connected in the axis direction of the sleeve. According to the casing centralizer, the variable outer diameter capable of being elastically contracted is generated through the ball cage made of the elastic material, and the casing centralizer abuts against the well wall through elastic deformation of the ball cage so as to automatically adapt to well diameters of different sizes. The technical problems that due to the fact that an existing underground optical fiber cable fastening hoop is limited by the fixed outer diameter of rigid design, the existing underground optical fiber cable fastening hoop is difficult to adapt to different well diameters, and pipe string tripping-in is difficult or the centering degree of a casing pipe string is low are solved.

Fibre optic cables (100), for use in a data communications network are adapted to be laid, along at least part of their length within a pipe (or conduit) (1) carrying a fluid and comprise fibres adapted for sensing the condition within or in the vicinity of the pipe (1). The cables (100) comprise one or more data fibre bundles (11) and armour (32) in the form of a layer of protective wires provided around the data fibre bundles (11). The cable (100) is additionally provided with outer sensing fibres (14) which replace one or more wires in the armour (32). The cables (100) are optionally adapted to remain stably positioned in the invert (2) of the pipe (1) by suitable selection of stiffness and relative density compared to the fluid and / or the provision of surface formations to reduce lift and / or drag forces experienced by the cable as a result of fluid flow.

A method of improving heat recovery from a geothermal well includes receiving temperature distribution data from a distributed temperature sensing (DTS) system comprising a fiber optic cable disposed in a wellbore, which extends through a formation; analyzing the temperature distribution data to determine a fluid flow profile along the wellbore; determining, based on the fluid flow profile, a location of dominant flow rate; and injecting a sealing agent into the formation at the location. When the sealing agent cures, fractures within a fracture system are sealed in the formation at the location. The cured sealing agent prevents or mitigates fluid flow through the formation at the location.