121 results about "Fusion splicing" patented technology

The invention belongs to the technical field of data processing, and particularly relates to a multi-view cloud high-precision fusion splicing method based on semantic geometry collaborative optimization, which comprises the following steps: extracting and quantifying features of multi-view cloud, endowing each point cloud with a semantic label, calculating the confidence coefficient of classification of each point cloud, and simultaneously calculating the normal vector and curvature geometric features of each point cloud. And performing robust initial registration based on semantic constraint, and outputting a robust initial transformation matrix. And constructing a collaborative energy function, carrying out dynamic quantitative coupling on semantic confidence and geometric stability, and carrying out iterative registration. And realizing anisotropic point cloud fusion based on semantic guidance, and outputting a fused and spliced three-dimensional point cloud model. And finally, verifying the performance of the method, and measuring fusion splicing errors. According to the method, the semantic features of the point cloud data are effectively extracted and utilized, the precision and robustness of point cloud fusion splicing are improved, and geometric details of a final model are reserved to the maximum extent.

The invention relates to a hollow-core microstructure optical fiber welding method, which comprises the following steps of: 1, firstly, stripping coating layers at to-be-welded ends of two sections of optical fibers to form bare optical fiber ends, and cleaning the bare optical fiber ends; cutting the end face of the bare fiber; 2, clamping the bare optical fiber ends of the two sections of optical fibers processed in the step 1 on an optical fiber clamp of a fusion splicer, and coaxially aligning the bare optical fiber ends; the welding machine is arranged in the sealing cover; 3, aiming at the condition that the two sections of optical fibers are hollow-core micro-structure optical fibers, installing inflation valves at the external non-processing ends of the two sections of optical fibers; only one section of optical fiber is a hollow-core microstructure optical fiber, and only an inflation valve needs to be installed at the non-processing end of the hollow-core microstructure optical fiber. 4, pre-inflation is carried out, wherein the sealing cover is inflated, and the hollow-core microstructure optical fiber is inflated; and 5, after pre-inflation is completed, a welding machine is started, the two sections of optical fibers are welded, and micro-pores are filled with trace inert gas in the melting heating process so as to keep the micro-pores not collapsed. The welding power of the optical fiber can be improved, and the air holes can be prevented from collapsing.

The utility model discloses a cable fusion joint, which comprises a pair of cables and a fusion welding section between the pair of cables, a pair of cable bodies are fixedly sleeved with conical fixing sleeves, the outer wall of each conical fixing sleeve is provided with an annular groove along the circumferential direction, and a sealing gasket with the same taper as the conical fixing sleeve is embedded in each annular groove. The utility model relates to the technical field of cable welding, the conical fixing sleeves are matched with the sealing gaskets, and the first connectors, the second connectors and the conical fixing sleeves are tightly connected, so that a plurality of groups of sealing structures are formed, and the sealing performance of the cable is improved. The sealing gasket and the conical fixing sleeve are the same in taper and can be tightly attached, and water is effectively prevented from entering. And the first connecting ring and the second connecting ring are screwed through threads, so that the sealing effect is enhanced, and the waterproof performance of the cable welding section is ensured.

To provide an optical fiber fusion splicer which allows for fusion splicing optical fibers under fusion conditions in accordance with a fiber pitch.SOLUTION: An optical fiber fusion splicer 10 of the present invention comprises a replaceable groove forming unit 13, an illumination unit 16, a lens 17, a camera 18, a pair of discharge electrodes 15, a high voltage generation circuit 24, a movable stage 11, an image processing unit 21, and a fusion condition processing unit 22.SELECTED DRAWING: Figure 5

The utility model discloses a fusion splicing type optical fiber quick connector, and belongs to the field of optical fiber connectors, the fusion splicing type optical fiber quick connector comprises a fixed shell, the bottom of the fixed shell is slidably connected with a lower shell, a connecting mechanism is arranged between the lower shell and the fixed shell, an insertion core body is arranged in the fixed shell, one side of the insertion core body is provided with an embedded optical fiber, and the embedded optical fiber is connected with the lower shell. A field optical cable is arranged on the side, away from the insertion core body, of the pre-embedded optical fiber, a movable plate, a second spring and a semicircular sponge mat are arranged, the movable plate is supported through the second spring, then the field optical cable is supported through the semicircular sponge mat on the surface of the movable plate, and when the field optical cable is bent by a large angle, the field optical cable can be fixed. When the optical fiber is bent by a large angle, the semicircular sponge pad is extruded to be deformed, the bending angle of the on-site optical cable is reduced, the problem that the optical fiber is easy to damage due to the fact that the optical fiber cannot be protected when the optical fiber is bent by a large angle by a traditional optical fiber connector is solved, and the practicability is improved.

The utility model relates to the field of operation and maintenance of optical cable lines, and discloses a welding box used for searching pipeline optical cables, which comprises an outer shell, an inner shell and an inner shell, and is characterized in that the outer shell comprises an upper shell and a lower shell, and the upper shell is arranged above the lower shell; the inner shell is arranged in the outer shell, and a fiber melting disc is arranged in the inner shell; and the plurality of first conduction plates are mounted on the outer wall of the outer shell, and the plurality of first conduction plates are distributed in a linear array. According to the utility model, through arranging the first conduction plate and the vibration plate on the fusion splicing box, vibration signals are ensured not to be attenuated or interfered too much in the transmission process, the conduction path of the vibration signals is optimized, the accuracy and reliability of the signals are improved, and the fusion splicing box can more accurately position the position of the optical cable fusion splicing box. And the working efficiency can be improved in the maintenance and management of the pipeline optical cable.

The invention provides a lane line marking data fusion and splicing method, a medium, equipment and a program product, and belongs to the technical field of intelligent traffic, the method comprises the following steps: obtaining road image data information shot by a multi-view vehicle-mounted camera in real time, and marking a road lane line; converting the point coordinate of each lane line to a laser radar coordinate system; sequentially calculating the intersection point of the line or the extension line of the line on the X axis and the forward intersection angle of the line or the extension line of the line and the X axis for each lane line; a sliding window algorithm is adopted to carry out lane matching on double yellow lines, and then lane matching is carried out on other single lane lines; combining the close line segments of the two lines in the matching combination through a close point fusion algorithm; and combining the two line segments in each matching combination into one line segment. According to the method, the matching precision and efficiency of the lane lines among the multiple projections of the radar system can be effectively improved, the precision and robustness of the multi-view lane line fusion technology are improved, and the burden of technicians is greatly reduced.

The invention relates to a welding discharge system, and relates to the technical field of optical fiber welding, the welding discharge system comprises a main control module, a driving voltage adjusting module and three flyback boost modules, the driving voltage adjusting module is controlled by the main control module to output an adjustable primary power supply voltage, and the flyback boost modules are connected with the main control module. The primary sides of the three flyback boost modules are connected in parallel to primary power supply voltage, the secondary sides of the three flyback boost modules are connected to the corresponding discharge electrodes, and the main control module is configured to output three paths of PWM driving signals with the same frequency to the three flyback boost modules, the discharge electrode in high-voltage release discharges to the other two discharge electrodes in relatively low potential, so that the three discharge electrodes are driven to generate phase rotation in space, and a rotary discharge arc around the optical fiber is formed; therefore, the problem of non-uniform heating caused by heat concentration in a fixed discharge direction and insufficient heat radiation in other directions is solved.

An optical connector for terminating a cable containing one or more multicore fibers. The connector has a plug housing, a ferrule disposed inside the housing, a rotatable frame, and a multicore fiber (MCF) stub having a length of a first MCF a portion of which is fixed inside the ferrule so that a first endface of the fiber is exposed at the front end of the ferrule. An opposite endface of the first MCF is cleaved for fusion splicing to a second MCF in the cable to be terminated. The ferrule also has a flange, and the frame is formed to engage the flange for rotation so that cores in the first MCF can be aligned and positioned in a prescribed orientation relative to the plug housing, and cores in the second MCF can be aligned with corresponding cores in the first MCF when the first and the second MCFs are fusion spliced to one another.

The utility model relates to an optical fiber welding disc mounting structure, which comprises an optical fiber welding disc provided with a connecting shaft; the installation support is provided with a connecting shaft through groove allowing the connecting shaft to penetrate through, the connecting shaft through groove is divided into a groove depth rotating part and a notch limiting part, the groove depth rotating part allows the connecting shaft to be rotationally arranged, and the installation support enables the connecting shaft to pass through at the notch limiting part through deformation to enter the groove depth rotating part. According to the invention, the welding disc can adapt to more types of installation environments, and the welding disc can be conveniently buckled and opened.

A fusion splicing machine according to one embodiment includes: an optical fiber holder holding an optical fiber in the state where a tip end of the optical fiber protrudes; a rotation mechanism arranged on the opposite side of the optical fiber holder to the tip end of the optical fiber and rotating the optical fiber holder around the axis extending along the optical fiber; and a clamp unit pressing the tip end portion of the optical fiber held by the optical fiber holder. The rotation mechanism rotates the clamp unit together with the optical fiber holder.

The invention discloses an optical interface structure of an integrated photonic chip for a fiber-optic gyroscope and an optical coupling method, and belongs to the technical field of integrated optics and optical fiber sensing. All input and output ports of the integrated photon chip are arranged on a coupling end face on the same side of the chip, the ports comprise at least two signal ports and two auxiliary ports, the signal ports are used for connecting tail fibers of polarization maintaining fiber rings of all measuring axes of the fiber-optic gyroscope, and the auxiliary ports are connected with a through type auxiliary coupling optical channel in the chip; each port is integrated with a spot size adaptation unit, and the spot size adaptation unit is used for matching the spot size of the polarization maintaining optical fiber and the chip waveguide; the integrated photon chip realizes single-side end face alignment coupling with the multi-channel polarization-maintaining optical fiber array through the coupling end face, tail fibers of polarization-maintaining optical fiber rings of all measuring axes of the optical fiber gyroscope are directly solidified in the multi-channel polarization-maintaining optical fiber array, a head channel and a tail channel of the multi-channel polarization-maintaining optical fiber array are aligned with two auxiliary ports of the chip respectively, and no extra welding link is needed. According to the invention, the problems of dispersed channel-by-channel coupling of optical interfaces, complex alignment of two-side FAs, large dual-link coupling loss, serious polarization cross coupling and uncontrollable coupling quality are solved, the overall precision and environmental stability of the fiber-optic gyroscope are remarkably improved, the method is suitable for various fiber-optic gyroscopes with single axes, multiple axes and the like, and the system integration level and the assembly consistency are remarkably improved.

A fusion splicing system includes a fusion splicer including a fusion mechanism to fusion-splice optical fibers, and a control unit configured to control an operation of the fusion mechanism, a first information terminal capable of communicating with the fusion splicer, and a server capable of communicating with the first information terminal. The control unit is configured to set locking on an operation of the fusion mechanism before use. The first information terminal acquires locking release information to temporarily release the locking setting from the server, and transmits a locking release command signal including the locking release information to the fusion splicer. The control unit determines whether or not the locking release information included in the received locking release command signal is appropriate, and temporarily releases the locking setting on the fusion mechanism to enable the fusion mechanism when the locking release information is appropriate.

The utility model discloses an optical fiber fusion splicer which comprises a base, a laser, a laser reflector path structure and an optical fiber adjusting structure, the optical fiber adjusting structure is fixedly arranged on one side of the base, an optical fiber fixing assembly is arranged on the optical fiber adjusting structure, and the optical fiber fixing assembly is used for placing and fixing an optical fiber to be fused. The optical fiber adjusting structure is used for adjusting the position of the optical fiber fixing assembly on the base so that an optical fiber to be welded can be located at an optical fiber coupling point, a light outlet of the laser reflector path structure is aligned with the optical fiber coupling point, and a light inlet of the laser reflector path structure is connected with a laser emission port of the laser. And the laser reflector path structure is used for focusing the laser emitted by the laser on an optical fiber coupling point. By adopting the embodiment of the utility model, the optical fiber fusion splicing efficiency can be improved, and the loss in the optical fiber fusion splicing process can be reduced.

This invention discloses a solid-core and hollow-core fiber conversion device, comprising: a dual-spherical lens, a glass tube, a single-mode solid-core fiber pigtail, and a hollow-core fiber pigtail; the dual-spherical lens includes a first end spherical surface and a second end spherical surface, wherein the curvature of the first end spherical surface is less than the curvature of the second end spherical surface; the first end spherical surface of the dual-spherical lens is close to the single-mode solid-core fiber pigtail, and the second end spherical surface of the dual-spherical lens is close to the hollow-core fiber pigtail. Using this structure, the size of the light spot converged by the first end spherical surface is the same as the size of the light spot emitted by the hollow-core fiber pigtail, enabling the conversion of light between hollow-core and solid-core fibers. It also solves the problems of ultra-high loss and extremely low return loss caused by fusion splicing of solid-core and hollow-core fibers, and features a simple and compact structure, low cost, and excellent performance.

This invention belongs to the field of fiber optic sensing application technology, specifically relating to a high-sensitivity air microbubble strain sensor based on the vernier effect and its fabrication method. The sensor consists of a parallel microbubble sensing cavity Fabry-Perot interferometer and an air reference cavity Fabry-Perot interferometer. The microbubble sensing cavity Fabry-Perot interferometer is made by fusion splicing two single-mode optical fibers, with an ellipsoidal microbubble embedded at the center of its conical region. The air reference cavity Fabry-Perot interferometer is made by fusion splicing two single-mode optical fibers through a hollow capillary tube, with the two single-mode fiber segments forming an air cavity within the capillary tube. When the microbubble sensing cavity and the air reference cavity are connected in parallel, their signals overlap, resulting in an envelope modulation effect. Compared to using the microbubble sensing cavity alone, this significantly amplifies the sensitivity, improves the sensor's sensing performance, and achieves high-sensitivity air microbubble strain sensing.

This map information generation system comprises: a fusion splicer; a communication unit that receives fusion splicing data; and a generation unit that executes generation processing for generating map information of a target optical fiber line. The generation processing includes a step for setting, as a reference point, a point the position of which has been previously specified, a step for acquiring first distance information indicating the distance between the reference point and a first-order adjacent point, a step for setting a range for determining a candidate point serving as the first-order adjacent point on the basis of the first distance information; a step for determining, as the first-order adjacent point, a candidate point located within the range among a plurality of candidate points; and a step for generating the map information on the basis of the position of the reference point and the position of the first-order adjacent point.

The utility model relates to the technical field of communication, in particular to an optical fiber fusion splicing quick-mounting clamp, which is characterized in that a fixed seat I and a fixed plate are fixed on a bracket, the fixed plate is connected with a rotating plate, the rotating plate can rotate on the fixed plate, a sliding rail I is arranged on the rotating plate, a sliding block I is arranged on the sliding rail I, and the top of the sliding block I is fixedly connected with a sliding plate I; a first installation plate is fixed to the first sliding plate, a second sliding rail is installed on the first installation plate, a second sliding block is installed on the second sliding rail, the top of the second sliding block is fixedly connected with a first sliding installation base, a third sliding rail is fixed to the side face of the first sliding installation base, a third sliding block is installed on the third sliding rail, and the third sliding block is fixedly connected with a second sliding installation base. A fixed mounting base is fixed to the front end of the second sliding mounting base and is in an L shape, a bottom plate is installed on the upper portion of the fixed mounting base, a fixed clamping block is fixed to the upper portion of the bottom plate, a first connecting block is fixed to the rear portion of the fixed clamping block, the upper portion of the first connecting block is hinged to a movable clamping block, and clamping grooves are formed in the fixed clamping block and the movable clamping block.

This invention discloses a cleaver operating platform for an optical fiber fusion splicer, comprising a fusion splicer body, an adjustable support structure, a rotating base structure, an adjustable baffle structure, a cleaver body, and a cooling tray structure. The adjustable support structure is mounted on one side of the fusion splicer body, the rotating base structure is mounted on the adjustable support structure, the adjustable baffle structure is mounted on the rotating base structure, the cleaver body is mounted on the rotating base structure, and the cooling tray structure is mounted on the adjustable support structure. This invention integrates the cleaver operating platform and the cooling tray placement space, consolidating the main workflow of optical fiber fusion splicing into one operating environment, effectively improving the efficiency of optical fiber fusion splicing. Furthermore, it is applicable to various fusion splicers and various cleavers, reducing material waste, offering extremely high cost-effectiveness, and possessing significant social and economic benefits.

A fusion splicing device according to one embodiment fusion-splices a pair of optical fibers to each other by electric discharge. The fusion splicing device comprises: a discharge electrode for generating a discharge; a microscope for observing an optical fiber; an end face state analysis unit for analyzing the state of an end face of the optical fiber from an image of the optical fiber acquired by the microscope; an end face state determination unit for determining whether the state of the end face is a predetermined specific state; and a shaping discharge unit which, when the end face state determination unit determines that the state of the end face is the specific state, causes the discharge electrode to apply a shaping discharge to the end face to shape the end face.

The invention belongs to the technical field of electronic information and wind tunnel test measurement, and particularly relates to a wind tunnel six-component balance dynamic decoupling method and application based on multi-mode transfer learning and physical constraint, and the method comprises the following steps: feature extraction and data preprocessing; the preprocessed data features are input into a pre-trained convolutional neural network ResNet-18 model, and hierarchical data feature extraction is carried out; the processed image feature data, strain feature data and vibration and temperature feature data are input to a full splicing layer for heterogeneous fusion splicing, the spliced data are input to a pre-trained machine learning regression XGBoost model for feature fusion regression and mapping, and finally six aerodynamic force / torque components acting on the aircraft are output. Through fusion of multi-modal transfer learning and physical constraint, in actual measurement of subsonic and hypersonic wind tunnels, the dynamic decoupling precision is improved by more than 50% and 65% compared with a traditional least square method and a polynomial method.

The invention is suitable for the field of optical fiber fusion splicing, and provides an optical fiber fusion splicing system, which comprises a laser used for outputting a laser beam with a set wavelength based on an output parameter; the spectroscope is used for dividing the laser beam into a first light beam and a second light beam; the first power meter is used for monitoring the power of the second light beam; the light beam shaping and splitting assembly is used for shaping the first light beam and then splitting the first light beam into two symmetrical light beams, and guiding the symmetrical light beams to be focused on an optical fiber welding area from two opposite sides; the second power meter and the third power meter are respectively arranged on paths of the two symmetrical light beams penetrating through the optical fiber to be welded in the optical fiber welding area, and are used for monitoring the power of transmission light; the infrared camera is used for collecting an infrared image for welding the optical fiber to be welded; and the industrial personal computer is in communication connection with the first power meter, the infrared camera, the second power meter and the third power meter. According to the scheme, high quality, high consistency and high reliability of optical fiber welding can be ensured.

This invention relates to a pre-connected fiber optic box, comprising at least one adapter box and a connection and fixing mechanism. The adapter box includes an integrated fusion splicing and storage device comprising a box cover and a box body. The box body contains a fusion splicing and storage area, an optical splitting area located below the fusion splicing and storage area, and optical cable fixing areas located on both sides of the optical splitting area. A non-removable screw connected to the box cover is mounted on a nut seat on the box body. The connection and fixing mechanism includes a connecting back plate and multiple cable tray seats. The front back plate suspension shaft is installed in the corresponding suspension shaft protrusion slot of the box back plate. The front back plate is respectively engaged in locking slots near each suspension shaft. The cable tray openings of the cable tray seats are located on the outer side. The front and rear back plates are provided with wall-mounting holes, and the rear back plate is provided with clamp mounting holes. During the expansion process, the optical cable route is clearly defined, facilitating subsequent expansion, maintenance, and operation. This invention balances the convenience of construction and maintenance, and improves work efficiency.

An optical fiber fusion splicing protection tube (10), comprising a heat-shrink tube (11), a heat-fusible tube (12), and a supporting tube (13). The heat-fusible tube (12) is sleeved on the outer periphery of the supporting tube (13), the heat-shrink tube (11) is sleeved on the outer periphery of the heat-fusible tube (12), and the supporting tube (13) is provided with several liquid injection through holes (131). Compared with an optical fiber fusion splice protection tube in the existing technology, the supporting tube (13) in the optical fiber fusion splicing protection tube (10) provides a dedicated space for an optical fiber, and the dedicated space only allows flowing liquid substances to enter, which can protect against damage from any direction within the full 360-degree circumference, thereby providing more reliable and more symmetrical support and protection performance. In addition, when the heat-shrink tube (11) shrinks upon heating, the heat-shrink tube wraps only around the exterior of the supporting tube (13) without directly transmitting pressure to the optical fiber, thereby preventing the optical fiber from bending or breaking. Compared with the solutions using thinner support rods and flat strips in the existing technology, the optical fiber is protected by the distributed supporting tube (13) on the outer periphery of the optical fiber, resulting in a smaller size after fusion splicing.

The utility model discloses a kind of double-parameter optical fiber laser sensors based on Sagnac ring cascaded liquid phase filling MZI, belong to optical fiber sensor technical field, by LD pumped laser source (1), wavelength division multiplexer (2), holmium-doped optical fiber (3), optical circulator (4), sensing probe A (5), first coupler (6), sensing probe B (7), second coupler (8), optical spectrum analyzer (9), first single-mode optical fiber (501) polished in side edge, large core diameter hollow optical fiber (502) fills PDMS (503), few-mode optical fiber (504), fiber bragg grating (505), second single-mode optical fiber (506), third single-mode optical fiber (701), first panda polarization maintaining fiber (702), second panda polarization maintaining fiber (703), fourth single-mode optical fiber (704);The utility model can effectively improve the sensitivity of device to temperature by hollow optical fiber filling PDMS;By panda polarization maintaining fiber rotation shaft fusion splicing makes that interference phase difference amplification, spectral line drift is more obvious, so improve the sensitivity of device to temperature;Different reflection peak signals of few-mode optical fiber grating and Sagnac interference spectrum signals can establish sensitivity matrix to realize double-parameter measurement to temperature and strain, with excellent reliability and stability.

This utility model discloses a rotating mechanism for driving optical fibers in a hollow-core optical fiber fusion splicer. The mechanism includes a rotating mechanism body, with an optical fiber rotation positioning mechanism mounted at the front. A rotating seat is mounted on the optical fiber rotation positioning mechanism, and a notch is formed on the surface of the rotating seat. An optical fiber is inserted through the notch. A conductive slip ring is mounted on the rotating mechanism body, and a driving ring is movably mounted inside the conductive slip ring. Connecting seats are fixedly mounted on both sides of the end of the driving ring, and the connecting seats are screwed to the end face of the rotating seat. This rotating mechanism allows the optical fiber to rotate during thermal fusion welding. By rotating the optical fiber, the optimal alignment angle can be found, reducing fusion loss caused by the irregularity of the optical fiber itself. This ensures that the two optical fibers can achieve ideal concentric alignment during fusion splicing, avoiding limitations on the transmission bandwidth and data transmission rate of the optical fiber communication system, which could lead to signal distortion and affect communication quality.