25 results about "Pigtail" patented technology

This invention relates to fiber optic ring assemblies, specifically to a fiber optic ring assembly and a sealing process method to improve its long-term stability. This addresses the technical problems of existing fiber optic ring assemblies, such as the inability to guarantee the accuracy performance of the fiber optic ring when exposed to air, poor sealing performance at the small holes in the fiber optic ring shell, and slippage of the fiber optic ring and pigtails from the fiber optic ring shell due to weak adhesive. The invention includes a fiber optic ring shell and a fiber optic ring. The fiber optic ring shell includes a fiber optic ring frame and a cover plate, which are sealed together. The fiber optic ring is installed within the cavity formed by the fiber optic ring frame and the cover plate. The invention also includes a flexible absorbent material covering the fiber optic ring. The flexible absorbent material fills the space within the cavity of the fiber optic ring shell, excluding the space occupied by the fiber optic ring. A channel is provided on the fiber optic ring shell connecting the cavity to the outside. At least one pigtail of the fiber optic ring extends from this channel. The channel is sealed.

The utility model discloses a surface array optical fiber collimator, is constituted by mould pressing lens array, a plurality of pigtail, a plurality of connecting pipe or ridge hole plate, one side of lens array is array convex surface, the other side is a plurality of ridge inclined plane, one side end surface of connecting pipe or ridge hole plate and lens array gluing, the other side end surface and pigtail gluing, since every optical fiber collimator is through the precise light adjustment between pigtail relative to plano-convex lens, and is fixed after the axial transition through connecting pipe or ridge hole plate, can guarantee the mechanical positioning accuracy index of every collimator and the optical performance index in the whole surface array optical fiber collimator, and the quality can be guaranteed, in addition, the utility model has compact structure and low material cost, and easy to assemble, the yield is high, is suitable for building large array.

The present application relates to a kind of alignment methods of the oblique angle of the oblique end face of pigtail, belong to optical fiber detection technical field, comprising the following steps: step 1) using ANSYS software adopts stereoscopic scanning method scanning and gathers the model data of pigtail and rectangular capillary;Step 2) the oblique angle that the end of pigtail needs to be ground is set in advance, the end of pigtail is simulated to be ground, and the deformation of pigtail grinding is analyzed;Step 3) using vector angle method analyzes the oblique angle of the end of pigtail after grinding, detects the oblique angle that the end of pigtail needs to be ground and the oblique angle of the end of pigtail after grinding;Step 4) the oblique angle of the end of pigtail after grinding is processed;The beneficial effects of the present application: by comparing the oblique angle that the end of pigtail needs to be ground and the oblique angle of the end of pigtail after grinding, the deviation between the oblique angle of the oblique end face of the pigtail after correction or detection grinding and the oblique angle of the oblique end face of the pigtail actually needed is reduced.

A fiber optic pigtail assembly that includes a plurality of optical fibers and at least one optical connector. The optical fibers each have a first end opposite a second end. The plurality of optical fibers are ribbonized together from the first end of each of the plurality of optical fibers partway toward the second end of each of the plurality of optical fibers and form a ribbonized end portion. The at least one optical connector is connected to the second end of each of the plurality of optical fibers. A loose portion of the plurality of optical fibers is positioned between the at least one optical connector and the ribbonized end portion

This utility model belongs to the technical field of fiber optic amplifier equipment, specifically relating to a C-band few-mode erbium-doped fiber amplifier, comprising: an input-end few-mode pigtail, an input-end few-mode to single-mode mode field adapter, an input-end single-mode isolator, a single-mode wavelength division multiplexer, a single-mode pump, a single-mode erbium-doped fiber, an output-end single-mode isolator, an output-end single-mode to few-mode mode field adapter, and an output-end few-mode pigtail; wherein, the input-end few-mode pigtail, the input-end few-mode to single-mode mode field adapter, the input-end single-mode isolator, the single-mode wavelength division multiplexer, the single-mode erbium-doped fiber, the output-end single-mode isolator, the output-end single-mode to few-mode mode field adapter, and the output-end few-mode pigtail are sequentially connected by fiber optic fusion splicing; the single-mode pump and the single-mode wavelength division multiplexer are connected by fiber optic fusion splicing.

This invention relates to a track-mounted optical fiber core switching device and method, belonging to the field of optical fiber core testing technology. Technical solution: Multiple fiber cores at the optical distribution end are respectively inserted into the front female opening of the fixed connecting flange at the top of the corresponding linear track. The pigtail end of the test end is equipped with a connector, which is fixed to a sliding seat. The pigtail end of the test end can be inserted into the back female opening of the fixed connecting flange. The sliding seat is equipped with a switching handle. By using the switching handle, the sliding seat slides along a linear track towards the fixed connecting flange at the top of the track, inserting the pigtail of the test end into the back female opening of the fixed connecting flange, thus completing the connection between the pigtail of the test end and a fiber core of the optical distribution end. The test core is then tested using testing equipment connected to the test end. This invention is convenient to operate, precise and efficient, significantly reduces labor costs, has high testing accuracy, effectively prevents hidden faults, has strong adaptability, and is easy to install.

This invention discloses an optical frequency domain reflectometer, comprising a beam splitting module, a main interference module, and an auxiliary interference module. The beam splitting module splits a swept laser provided by a laser into a first detection signal and a first reference signal. The auxiliary interference module generates a reference interference signal based on the first reference signal. The main interference module includes a free-space optical circulator and a first beam splitting unit and a first coupling unit, all of which are free-space optical devices. In this embodiment, the main interference module uses only free-space optical devices, fundamentally eliminating the inherent insertion loss accumulation and Fresnel reflection array of cascaded fiber optic devices. This significantly improves the coherent mixing signal-to-noise ratio and measurement repeatability while eliminating the need for pigtail interconnects and adhesive sealing nodes, thereby reducing the overall size and enhancing vibration resistance, ultimately meeting the deployment requirements of engineering and uncontrolled scenarios.

This invention relates to the field of optical communication technology, and in particular to a single-fiber bidirectional device and its optical module with specific wavelength reflection, comprising: a transmitting TO-CAN, a receiving TO-CAN, an integrated tube, and a pigtail pin; the transmitting TO-CAN is coupled to one end of the integrated tube, the receiving TO-CAN is coupled to the side of the integrated tube, and the pigtail end of the pigtail pin is coupled to the other end of the integrated tube; a beam splitter and a filter are disposed at the central axis of the integrated tube, the beam splitter being used to reflect light returned from the pigtail pin into the receiving TO-CAN; the filter is disposed at the light inlet of the receiving TO-CAN; a grating fiber core is disposed inside the pigtail pin, the grating fiber core being located at the end of the pigtail pin, the grating fiber core being used to reflect light of a specific wavelength in the optical signal transmitted by the transmitting TO-CAN into the receiving TO-CAN.

The present disclosure relates to the field of coupling and packaging of high-temperature sensors, in particular, to a coupling and packaging device and method for an integrated high-temperature optical fiber sensor based on laser fusion splicing. The device includes: a laser fusion splicing module, a motion control module, and a signal detection module, wherein the laser fusion splicing module is configured to provide fusion splicing laser to the motion control module to weld and fix a tail end of an optical fiber pigtail and a sensitive unit; the motion control module includes a three-dimensional displacement platform as pedestal, an optical fiber five-dimensional displacement platform, an optical fiber clamping member, a sensitive unit clamping member, a rotating platform, and a sensitive unit three-dimensional displacement platform, and is configured to achieve the alignment and adjustment of a fusion splicing position; and the signal detection module is configured to monitor a spectral signal in the sensor in real time. The present disclosure may achieve the integrated coupling and packaging of a homogeneous material of the high-temperature optical fiber sensor.

This disclosure relates to the technical field of computers, and in particular to a business management system, method, apparatus, device, storage medium, and product. The system includes an RFID tag, an RFID acquisition module, and a data processing module. The RFID tag is attached to the pigtail of a dummy resource. The RFID acquisition module is connected to the pigtail of at least one dummy resource with an RFID tag via an interface. The RFID acquisition module and the data processing module are connected. The RFID tag is used to acquire and record attribute data of the dummy resource. The attribute data is used to indicate the service information and optical path activity information executed by the dummy resource. The RFID acquisition module is used to read the status data of the connected dummy resource and the attribute data through the transmission channel between the interface and the pigtail, and to mark the status data based on the attribute data, and send the marked status data to the data processing module. The data processing module is used to process the marked status data to obtain the target status data of the dummy resource.

This invention relates to the field of microwave electric field measurement technology, and provides a microwave atomic probe and its fabrication method, as well as a microwave electric field measurement system. The microwave atomic probe is constructed by sequentially connecting a probe light transmission fiber, a probe light collimator assembly, an atomic gas cell, a coupling light collimator assembly, and a coupling light transmission fiber. The probe light transmission fiber and the coupling light transmission fiber are photonic crystal fibers. The probe light transmission fiber includes a first pigtail ferrule, which is connected to the probe light collimator assembly to horizontally collimate the emitted laser. The coupling light transmission fiber includes a second pigtail ferrule, which is connected to the coupling light collimator assembly. The atomic gas cell is located between the probe light collimator assembly and the coupling light collimator assembly. This invention ensures stable probe light polarization, achieves higher probe light collection efficiency, and effectively solves the problem of signal abrupt changes caused by unstable laser polarization.

The optical module provided in this application includes a circuit board, an optical transceiver assembly, an optical transmitter assembly, an optical receiver assembly, and an optical fiber adapter. The front side of the circuit board has first and second data processors. The optical transceiver assembly includes a housing, an optical transmitter, and an optical receiver. The housing includes stacked first and third cavities, which are rigidly connected to the optical fiber adapter via optical ports. One end of the circuit board is inserted into the first cavity, where the optical transmitter is located and electrically connected to the first data processor. The optical receiver is located in the third cavity and electrically connected to the first data processor. The optical transmitter assembly is located on the front side of the circuit board, and the optical receiver assembly is located on the back side. One end of the optical transmitter and receiver assemblies is electrically connected to the second data processor, and the other end is connected to the optical fiber adapter via an optical fiber pigtail. This application optimizes the internal circuitry and optical engine layout of the optical module, reducing the volume occupied by multiple sets of optical transmitter and receiver assemblies, which is beneficial for the miniaturization of the optical module.

This utility model discloses a pigtail storage box that reduces the bending degree of the pigtail without increasing the overall size of the storage box, thereby reducing the impact of pigtail bending on the transmission quality of optical signals in the pigtail. The pigtail storage box includes a lower rotating disk and an upper rotating disk. A winding body is provided on the inner bottom surface of the rotating disk, and a wire-passing groove is formed in the middle of the winding body. Two first-coil clips are also provided on the inner edge of the lower rotating disk. The two first-coil clips are arranged opposite each other and located outside the winding body. The pigtail passing through the wire-passing groove also passes through the two first-coil clips, so that the pigtail bends at the inner edge of the lower rotating disk after passing through the wire-passing groove, thereby reducing the bending degree of the portion of the pigtail between the wire-passing groove and either of the first-coil clips. The upper rotating disk is fastened onto the lower rotating disk and rotatably connected to it. Two wire-passing holes are provided on the side wall of the upper rotating disk.

The application provides a single-tube laser automatic tin soldering packaging equipment, a laser clamp assembly is used for clamping and positioning a laser tube shell, a pigtail clamp assembly is used for clamping a pigtail and coupling with the laser tube shell, a tin soldering feeding assembly is used for continuously feeding tin wires to a packaging position, and a heating assembly is used for heating and melting the tin wires at the packaging position; the heating assembly comprises a laser heating assembly and an electric eddy current heating assembly, the laser heating assembly is used for generating laser to rapidly melt the tin wires fed by the tin soldering feeding assembly, and the electric eddy current heating assembly is used for generating electric eddy current to make the temperature field of the packaging position uniform; on the basis of automatically completing the coupling of the pigtail and the laser tube shell, the application can also automatically perform the feeding, heating and melting, filling, welding and fixing of the tin wires; the heating assembly cooperates the laser and the electric eddy current heating to ensure the rapid melting of the tin wires after being fed, the uniform maintenance of the temperature field after the filling and the welding of the packaging position, and the welding quality.

The present invention relates to a connection arrangement for a functional element on a glazing comprising a flat foil conductor and a pigtail comprising several individual wires and a connection element selected from plugs or sockets for a glazing comprising at least one glass sheet, a functional element provided on the glazing.

The application provides a balanced optical detector assembly for a fiber-optic gyroscope, which comprises a pigtail, a photosensitive diode and a carrier thereof, a signal processing circuit, a packaging shell and a packaging cover; the packaging cover covers the packaging shell; the pigtail is aligned with a photosensitive surface on the photosensitive diode and the carrier thereof after passing through the packaging shell; the photosensitive diode and the carrier thereof and the signal processing circuit are fixed on a mounting surface of the packaging shell; electrical communication is achieved between the photosensitive diode and the carrier thereof and the signal processing circuit and between the signal processing circuit and lead wires of the packaging shell by wire bonding. The application realizes perfect balance of signal light and reference light and effectively reduces relative intensity noise of a light source of the fiber-optic gyroscope.

An optical fiber connector (2000), a fiber pigtail, and a signal acquisition device. The optical fiber connector (2000) comprises: an optical fiber hole (2100), and a first exterior surface (2200), a first step surface (2300) and a second exterior surface (2400) which are sequentially connected, wherein the first exterior surface (2200) and the second exterior surface (2400) are coaxial with the optical fiber hole (2100); the radial size of the second exterior surface (2400) is greater than that of the first exterior surface (2200); the first exterior surface (2200) and the second exterior surface (2400) are adapted to be fitted with a first mounting hole (3100) and a second mounting hole (3300) of a signal acquisition device. The optical fiber connector (2000) further comprises a sealing ring limiting region (2500) and a first limiting structure (2600), wherein the first limiting structure (2600) and the first step surface (2300) are located at different positions in the axial direction of the optical fiber hole (2100); the first limiting structure (2600) is used for working in conjunction with a second limiting structure (3400) of the signal acquisition device to limit the axial position of the optical fiber connector (2000) relative to the signal acquisition device; the sealing ring limiting region (2500) is connected to the first exterior surface (2200); the sealing ring limiting region (2500) is used for fixing a flexible sealing ring.

The invention relates to the technical field of optical communication, in particular to a light emitting assembly. The light emitting assembly comprises a light source module and a tail fiber module connected with the light source module. The light source module comprises a shell and a light emitting unit arranged in the shell, and the light emitting unit is used for emitting polarized light; the tail fiber module comprises a butt joint connected with the shell and an optical fiber connecting assembly connected with the butt joint, the light emitting assembly further comprises an optical isolator, the optical isolator comprises a first isolation assembly and a second isolation assembly which are arranged in a split mode, the first isolation assembly is arranged in the shell, and the second isolation assembly is arranged in the shell. And the second isolation assembly is arranged in the butt joint. By adopting the mode, the space utilization rate can be improved on the premise of ensuring the isolation requirement, so that the miniaturization of the light emitting assembly is ensured.

This invention discloses a fiber optic grating corrosion monitoring device for reinforced concrete based on a lever structure, belonging to the field of fiber optic sensing technology. It includes a base with a support beam at its bottom and a lever rotating arm mounted on the beam. One end of the lever rotating arm extends outward from the base body, and a claw assembly slot is inserted into this end. A measuring contact claw is connected to the claw assembly slot. A sensitivity-enhancing twisted wire and a fiber optic grating bonded to the sensitivity-enhancing twisted wire are fixed on the base. The other end of the lever rotating arm contacts the fiber optic grating, and the fiber optic grating pigtail extends outward from the base body and is connected to a demodulator. The measuring contact claw tightly adheres to and wraps around the reinforcing steel bar to be measured. This invention can simultaneously meet the requirements of long-term real-time monitoring of reinforced concrete castings, exhibiting high stability and sensitivity. Furthermore, its sensitivity is adjustable, allowing for timely detection of even minute changes in the steel bar during corrosion.

This invention relates to the field of fiber optic measurement technology, and particularly to a method and system for measuring and modulating temperature and stress in multimode fiber optics. The method utilizes a single-frequency laser emitted from a pigtail laser, which is then split by a beam splitter and fed into the multimode fiber of the measurement and reference arms. The outgoing light is collimated, polarized, and then combined by a polarization combining crystal. After being modulated by a quarter-wave plate, interference fringes are finally recorded by a polarization mask camera. A four-step phase-shifting algorithm is used to reconstruct the wavefront phase image, extracting two characteristic parameters: the change in the tilt angle of the interference fringes and the change in the wavefront phase distribution. This invention leverages the differences in wavefront response mechanisms of multimode fibers under temperature and stress to achieve two-parameter decoupling. It offers advantages such as high real-time performance, resistance to strong light interference, and a compact structure, making it suitable for integrated precision temperature and stress measurement in industrial monitoring and aerospace fields.

A twisting unit for a yarn consisting of at least two twisted threads. The twisting unit includes a conductor with at least one pigtail guide (12) in which the yarn (8) is twisted in a longitudinal direction (X-X); a cutting device for the yarn (8) configured to cut the yarn (8) upon detection of a breakage in at least one of the threads forming the yarn (8); at least one detection device (16) for detecting a breakage in at least one of the threads forming the yarn (8), including a tension sensor (20) of the yarn (8); and a processing and control unit (24) operatively connected to the tension sensor (20) of the yarn (8). The twisting unit according to this application is capable of independently managing the detection of thread breakage, stopping twisting, and the subsequent recovery of the twisting process itself.

This invention discloses a return light processing device and its fabrication method. The device includes a cladding stripper, an optical fiber placement slot structure, and a return light monitoring module. The input-side optical fiber of the cladding stripper is coiled and fixed, and the output pigtail of the cladding stripper is fabricated with a spherical end face to regulate the return light transmission path and suppress end face reflection. The optical fiber placement slot structure has several optical fiber placement slots, and the pigtail is fixed within these slots. The return light monitoring module is located in the optical path and is used to collect the return light signal, and adjust the optical power and / or protect the laser based on the collected return light signal. This invention is compact, easy to manufacture and maintain, low in cost, and safe and reliable.

The application relates to a long-range optical surface shape detection device and a use method thereof. The device comprises a plurality of mobile optical heads arranged in a rectangular array and connected to form an integral structure. The measurement directions of all the mobile optical heads are the same, and the measurement ends are located on one side of the integral structure. The plurality of mobile optical heads are connected to form an integral structure through a cuboid-shaped outer shell. A plurality of longitudinal and transverse partition plates are arranged in the outer shell, and the inner part of the outer shell is correspondingly divided into a plurality of vertical mounting spaces arranged in a rectangular array. A pigtail, a beam splitter, a single-hole screen, a Fourier transform lens and a surface array detector are arranged in each mounting space. One mounting space corresponds to one mobile optical head and faces the mirror surface to be measured. The device integrates a plurality of mobile optical heads into one detection integral structure. All the measurement points of the mirror surface can be measured at one time, the efficiency is greatly improved, and no fixed optical head correction is needed.

This invention proposes a test fixture for an airtight optical module (PIND), comprising a base, a first clamping member, a bracket, a second clamping member, and a driving component. The base includes an optical module body positioning part and a pigtail positioning part. The first clamping member is used to fix the pigtail of the airtight optical module. The second clamping member is vertically slidably mounted on the bracket and is used to cooperate with the optical module body positioning part to fix the optical module body of the airtight optical module. The driving component is used to drive the second clamping member to slide and move vertically up and down. This airtight optical module (PIND) test fixture, in which the first clamping member cooperates with the pigtail positioning part of the base to fix the pigtail of the airtight optical module, and the second clamping member cooperates with the optical module body positioning part of the base to fix the optical module body of the airtight optical module, ensures that the entire airtight optical module with pigtail is reliably fixed, avoiding the impact on test results caused by unreliable fixing of the optical module body and pigtail during the test.

The utility model relates to the double -layer anti -bending optical fiber tail fiber of optical fiber field, including optical fiber core, the outer surface of optical fiber core is covered with elastic buffer layer, and both close adhesion, the outer surface of elastic buffer layer is connected with spiral steel wire armoring layer, both close adhesion, the outer surface of spiral steel wire armoring layer is added with protective sleeve, both close adhesion, the protective sleeve is by three to nine groups of pipe body and is composed, the adjacent pipe body between the insertion connection, the outer end of optical fiber core is added with connector, and the connecting end of connector is connected with the outer end of optical fiber core, and the outer end of connector is connected with transition part, and the transition part is whole for taper design, and its inner chamber installs nickel -titanium alloy memory support, and the outer surface of nickel -titanium alloy memory support is coated with lubricating coating, and the outer end of connector is evenly installed with the plug -in part, and the plug -in part all is located at the inner chamber center position of transition part, and the elastic buffer layer forms the buffer protection to optical fiber core, reduces the impact influence.