627 results about "Optical fiber bundle" patented technology

The invention discloses a multi-mode three-dimensional tactile sensing device, method and system based on light reflection and resistance, and the device comprises a hemispherical flexible layer, four silicone rubber columns, a thermistor layer, a piezoresistive film layer composed of four piezoresistive sensing units, a light reflection film layer, an optical fiber sleeve, a transmitting optical fiber, and a receiving optical fiber. The top ends of the silicone rubber columns are connected to the lower portion of the hemispherical flexible layer and evenly distributed in four quadrant areas in the hemispherical flexible layer, the thermistor layer is located below the silicone rubber columns, and all the piezoresistive sensing units of the piezoresistive film layer are arranged below the thermistor layer and correspond to the silicone rubber columns in a one-to-one mode. The light reflecting film layer is located below the piezoresistive film layer, the optical fiber sleeve is arranged below the light reflecting film layer, and terminals of the transmitting optical fiber and the receiving optical fiber are coaxially arranged in the optical fiber sleeve at intervals, so that an optical fiber bundle is formed. The system is low in cost, wide in application scene and capable of achieving three-dimensional force and multi-mode sensing.

The invention discloses an optical fiber bundle end face performance test method, device and equipment. The method comprises the steps of obtaining a target performance test requirement; analyzing the target performance test requirement to generate at least one target test parameter; generating a target test scheme corresponding to the at least one target test parameter, wherein the target test scheme comprises one or more combinations of a light source starting process, a light source brightness adjusting process, a light source position adjusting process, a target test board position adjusting process and a data processing process; and controlling the corresponding light source and / or the target test board according to the target test process, acquiring an end face image of the optical fiber bundle and / or an imaging image of the target test board, and then carrying out data processing to generate a performance test result. According to the invention, various performance detection of the optical fiber bundle can be fully automatically completed, errors caused by naked eye detection are avoided, and meanwhile, the brightness of each light source is adjustable, so that the optical fiber bundle detection device adapts to optical fiber bundles with different lengths and different transmittances.

The invention belongs to the technical field of beam combiner manufacturing, and discloses a beam combiner manufacturing method, which comprises the following steps: carrying out primary dispensing on a non-coating layer on one side of a multi-fiber stripping opening of an optical fiber bundle by using low-refractive-index glue so as to fix the relative positions of a pumping optical fiber and a signal optical fiber; the optical fiber bundle is placed in the packaging container in a suspended state, secondary dispensing is carried out at the multi-fiber stripping opening of the optical fiber bundle by using the low refractive index again so as to keep the suspended state, and the range of secondary dispensing covers a part of the coating layer and the primary dispensing position; and dispensing the multi-fiber coating layer and the single-fiber coating layer of the optical fiber bundle by using high-refractive-index glue. According to the invention, by weighing the heat dissipation and fixing functions of the glue and the influence of the acting force on the optical fiber bundle, the packaging is better realized, so that the long-term reliable use of the beam combiner is realized.

The invention discloses a multi-optical fiber bundle imaging mode dimension space conversion plasma spectrum analysis system, which is characterized in that a two-dimensional optical fiber array comprising M * N optical fiber micropores is arranged on an optical fiber area array, a one-dimensional optical fiber array comprising M * N optical fiber micropores is arranged on an optical fiber linear array, and an optical fiber surface is connected by adopting M * N optical fibers according to a preset connection relation, the two-dimensional optical fiber array is converted into the one-dimensional optical fiber array, the optical grating disperses light transmitted by the optical fiber linear array, then the light is focused by the imaging lens and then is subjected to optical imaging by the CCD detector, and the spectral data conversion module converts a spectral image into a spectral data graph of each optical fiber channel. According to one-to-one correspondence of optical fibers in the two-dimensional optical fiber area array and the one-dimensional optical fiber linear array, the distribution state of elements in the plasma is reconstructed, and multi-optical-fiber sample element content detection is achieved.

The invention provides a system and a method for detecting geometric parameters of an optical fiber with a longitudinal periodic structure. The system comprises an optical fiber clamp used for fixing a test part of the optical fiber to be detected in optical fiber refractive index matching oil in a space image imaging device; the light source is used for emitting test light to the collecting lens through the optical fiber bundle, and the test light is focused into a focused light spot through the collecting lens and then is sequentially emitted to the space image imaging device and the detection device; the space image imaging device is used for moving along the axis direction of the to-be-tested optical fiber based on a preset moving speed after the test light passes through a test part in the optical fiber refractive index matching oil so as to form an optical imaging signal corresponding to the test part; and the detection device is used for acquiring geometric parameters of the periodic structure in the to-be-detected optical fiber according to the optical imaging signal. According to the invention, the detection device can accurately obtain the periodic structure geometric parameters of the to-be-detected optical fiber, and the detection precision and reliability are improved.

The present invention relates to an endoscopic probe for photoacoustic tomography of cavity side walls, characterized by comprising a hollow tubular probe housing with a closed front end; N acoustic wave receiving windows and M laser output windows formed on the side wall of the tubular probe housing; an array of linear laser output ports connected to a pluggable optical fiber connector via an optical fiber bundle; and an ultrasonic transducer array connected to a multi-channel signal connector via a signal harness. The present invention employs a method of arranging array transducers and array laser outputs on the side wall of the probe, eliminating the need for a reflector. The probe is less than 2 centimeters in size and can be placed in close proximity to the prostate through the rectum for photoacoustic imaging of the prostate, or in close proximity to the inner wall of the rectum for photoacoustic imaging of the inner wall of the rectum. The endoscopic probe provided by the present invention, combined with a photoacoustic imaging system host, utilizes photoacoustic endoscopic imaging technology to perform real-time transrectal prostate imaging and rectal imaging, achieving ideal imaging results.

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.

The invention discloses a multispectral holographic imaging system and an imaging method. The system comprises a multi-wavelength light source module which is composed of a plurality of light source assemblies which are independently driven and have different wavelengths; the optical fiber coupling module is composed of a plurality of optical fiber bundles which are connected with the emergent end face of the light source assembly and used for restraining optical signals of the light source assembly as point light sources. Light signals of the light source assembly are constrained to the light emitting area to form an equivalent point light source; the image acquisition module comprises a sample jig and an image sensor which are coaxially arranged with the emergent end face of the optical fiber bundle, and the image sensor is used for acquiring spectral interferograms of the object light and the reference light; and the control processing module is used for sequentially controlling the switching of each wavelength light source assembly, analyzing and processing a plurality of spectral interferograms, and reconstructing the three-dimensional morphology of the sample through an angular spectrum diffraction algorithm. The problems of aberration, field depth limitation, view limitation, complex structure, high cost, resolution limitation and the like in the traditional microscopic imaging technology can be solved.

The invention relates to the technical field of aero-engine combustion chamber performance testing, in particular to a three-dimensional chromatography testing system and method for the ignition process of an aero-engine combustion chamber. The device is characterized by comprising a guide rail arranged on the periphery of an igniter of a combustion chamber, a plurality of imaging units are arranged on the guide rail, each imaging unit is composed of an imaging lens, a flexible optical fiber bundle and a four-degree-of-freedom sliding block, a high-speed camera is arranged corresponding to the flexible optical fiber bundle, and the high-speed camera is connected with a synchronous controller through a signal line. And the synchronous controller is connected with the igniter through a signal line. By introducing the flexible optical fiber bundle and the synchronous controller, the number of the high-speed cameras is reduced to one, so that the test cost is reduced, the problem of synchronous control of the high-speed cameras and the igniter is solved, and the synchronism of the high-speed chromatographic measurement test bed to the ignition process is guaranteed. Meanwhile, the imaging lens can be placed on the guide rail at any angle through the sliding block, and test operation is facilitated.

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.

The invention discloses a position-sensitive reactor core optical fiber detector and a preparation method thereof, and relates to the field of radiation detection, the position-sensitive reactor core optical fiber detector comprises a probe (1), an optical fiber bundle (2) and an electronics system (3), and the probe (1), the optical fiber bundle (2) and the electronics system (3) are externally connected in sequence by using a high-temperature-resistant sealant (4); the probe (1) comprises a scintillator (11), an optical glass light guide rod (12) and a protective shell (13); the scintillator (11) and the optical glass light guide rod (12) are sequentially arranged according to a sandwich structure and are arranged in the protective shell (13); the optical fiber bundle (2) comprises a metal coating optical fiber (21), a high-temperature-resistant adhesive (22) and a stainless steel metal coil (23). The problems that an existing optical fiber detector cannot be used for detection work under the conditions of high temperature, high pressure and strong irradiation, and the existing optical fiber detector can only achieve flux detection and cannot be used for position detection are solved.

The invention relates to the technical field of optical fiber bundle processing equipment, in particular to an optical fiber end face grinding device which comprises a mounting base, a clamping assembly, a lifting unit and a driving unit, the clamping assembly comprises a plurality of rotating rings and a plurality of clamping parts, the rotating rings are connected with the mounting base, and the driving unit is arranged on the mounting base and used for rotating the bottommost rotating ring; the lifting unit is connected with the lifting ring above the topmost layer of rotating ring, the topmost layer of rotating ring rotates relative to the lifting ring, and an elastic piece is fixedly connected between every two adjacent rotating rings; except the rotating ring on the topmost layer, a connecting sleeve is fixed above each rotating ring; the first ends of the clamping components are arranged in the rotary rings, and the second ends of the clamping components are provided with clamping channels capable of being opened and closed. A linkage part is arranged between the top in the connecting sleeve and the rotary ring below the connecting sleeve and can rotate relative to the connecting sleeve, and the linkage part on the bottommost layer is in meshing transmission with the clamping part on the bottommost layer. According to the invention, optical fiber breakage caused by torque concentration during rotation of the optical fiber can be avoided.

The present invention relates to a multispectrum endoscope and an endoscope system comprising same. The multispectrum endoscope of the present invention comprises: a first light source emitting infrared rays having a plurality of wavelengths; a plurality of multimode optical fibers for guiding the infrared rays emitted from the first light source toward a sample; a second light source emitting a visible ray; an optical fiber for guiding the visible ray emitted from the second light source toward the sample; a lens part for receiving a fluorescent signal emitted from the sample and a visible light signal reflected off the sample; and an optical fiber bundle for guiding the fluorescent signal and / or the visible light signal received by the lens part toward a multispectrum photodetector, wherein the optical fiber bundle is disposed so as to be surrounded by the plurality of multimode optical fibers, and the end portion of the multispectrum endoscope emitting the visible ray surrounds at least a portion of the plurality of multimode optical fibers.

The invention relates to the technical field of seismic exploration equipment, in particular to an optical fiber signal transmission seismic cable for seismic exploration. A power line, a twisted-pair shielding signal line and an optical fiber beam tube are wrapped outside the high-pressure plastic composite hose in a cabling mode, and the power line, the twisted-pair shielding signal line and the optical fiber beam tube jointly form a cable core structure. An outer layer non-woven fabric is wrapped outside the cable core structure, a polyurethane inner sheath is extruded outside the outer layer non-woven fabric, an armor layer is wrapped outside the polyurethane inner sheath, and a polymer polyethylene sheath is extruded outside the armor layer. According to the high-pressure plastic composite hose, through the design of the double reinforcing layers of the Kevlar aramid fibers and the polyester fibers, the strength and bursting pressure of the central air pipe are remarkably improved, and the high-pressure plastic composite hose can better adapt to the complex working environment; the cable core structure adopts composite optical fiber analog signal transmission to replace a traditional digital signal seismic cable, so that the quality and efficiency of signal transmission are improved; and the armor layer adopts a double-layer steel wire armor structure, so that the overall mechanical strength and tensile property of the cable are improved.

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.

The utility model relates to an optical fiber beam combiner. The device mainly comprises an input optical fiber 1 and an output bare fiber 2, one end of the input optical fiber 1 is provided with a fused biconical taper optical fiber bundle 3, and the input optical fiber 1 is connected with the output bare fiber 2 through the fused biconical taper optical fiber bundle 3; a first glass sleeve 4 is arranged on the input optical fiber 1, a tube shearing gap 100 is formed between the first glass sleeve 4 and the fused biconical taper optical fiber bundle 3, and a reflecting mirror 6 is arranged at one end, far away from the fused biconical taper optical fiber bundle 3, of the tube shearing gap 100; the output bare fiber 2 is provided with a pumping waste light filtering device 7 used for filtering out pumping waste light exceeding the outer cladding NA of the output bare fiber 2. According to the utility model, the heating problem of the high-power pumping beam combiner can be solved, and cladding light can be selectively filtered.

The invention relates to the field of optical fiber and cable equipment, and discloses an ultrahigh-density optical fiber ribbon core wire and a production method thereof, an optical fiber bundle of the ultrahigh-density optical fiber ribbon core wire is a regular triangular optical fiber bundle composed of optical fibers with different chromatograms, a filling rope is arranged in a middle hole of the regular triangular optical fiber bundle, and the middle hole is coated with a first layer of silicone oil lubricant; the outer surface of the regular triangular optical fiber bundle is coated with a first layer of acrylic resin, and the surface of the first layer of acrylic resin is coated with a second layer of silicone oil lubricant; and a second layer of colored acrylic resin is coated on the surface of the second layer of silicone oil lubricant. According to the production method of the optical fiber ribbon core wire, through the steps of regular triangle arrangement, primary curing, secondary curing and ribbon forming, optical fiber convergence can be achieved, the density of the combined fiber core of the optical fiber core wire is high, the capacity bottleneck of a traditional optical cable is solved, the combined strength of the optical fiber core wire is high, the application scene is wider, and the service life is longer.

The invention discloses a fluorescent confocal microscopic endoscopic imaging lens, which comprises three groups of doublet lenses, specifically comprising a first lens group, a second lens group and a third lens group, the first lens group comprises a plano-concave lens and a first biconvex lens which are sequentially arranged from an object space side to an image space side, and the second lens group comprises a plano-concave lens and a second biconvex lens which are sequentially arranged from an object space side to an image space side; the detector is used for collecting fluorescence signals emitted by an object space and adjusting light angles; the second lens group comprises a first negative meniscus lens and a second biconvex lens, and is used for relaying transmission light and balancing aberration so as to gently transition a light angle; and the third lens group comprises a second negative meniscus lens and a positive meniscus lens and is used for focusing the light to the end face of the optical fiber bundle. The lens is compact in structure, reasonable in light path matching and suitable for human tissue close imaging scenes, has the advantages of being high in resolution, low in distortion, excellent in chromatic aberration control and the like, and is suitable for digestive tract early cancer diagnosis and confocal imaging system integration.

The invention discloses a laser deicing method and device based on ice layer thickness and surface state recognition, belongs to the technical field of fan blade deicing, and aims to solve the problems of low efficiency, large energy loss and high blade damage risk caused by incapability of accurately sensing the ice layer state in the conventional fan blade laser deicing technology. The system comprises an active sensing module and a laser clearing module. The active sensing module measures the thickness and the surface state of an ice layer through infrared laser, and performs multi-dimensional monitoring in combination with a laser radar, a camera and a thermal infrared imager. And the laser clearing module dynamically adjusts laser parameters for deicing according to the sensing result. According to the invention, a non-contact ice thickness measurement method based on infrared laser and a surface state identification method based on relative illumination intensity are created for the first time, and accurate sensing of the ice layer state is realized. A laser and a power supply are fully integrated in the unmanned aerial vehicle, the constraint of a ground platform and optical fibers is eliminated, and the deicing task of the fan blade is accurately completed.

The invention provides a reverse pumping / signal beam combiner, a preparation method and application, a hollow-core optical fiber is used as a signal optical fiber of the beam combiner, the same ends of the signal optical fiber and a plurality of pumping optical fibers form a beam combining end of an optical fiber bundle through fused biconical taper beam combination, and the signal optical fiber is located in the center of the optical fiber bundle. The other pumping optical fibers are evenly distributed on the periphery of the signal optical fiber, the output optical fiber is welded to the beam combining end of the optical fiber bundle, fiber cores of the hollow-core optical fiber and the output optical fiber in the optical fiber bundle are aligned, Fresnel reflection can occur at a melting point formed by close welding of the end faces of the hollow-core optical fiber and the output optical fiber, and the output optical fiber is matched with a mode field of the hollow-core optical fiber. The prepared reverse pumping / signal beam combiner can be applied to an optical fiber laser system and simultaneously undertakes the tasks of the reverse pumping / signal beam combiner and a low-reflectivity grating, and the hollow-core optical fiber can more flexibly control the output light mode and the light beam quality.

The utility model relates to the technical field of communication optical cables, in particular to a chemical-corrosion-resistant optical cable tearing rope filling structure, which comprises a central reinforcing piece, a protective sleeve coated outside the central reinforcing piece, optical fiber bundles distributed on the outer side of the central reinforcing piece on the inner side of the protective sleeve in an annular array manner, a filling rope and a protective sleeve, the protective sleeve is arranged on the outer side of the central reinforcer; wherein the cross section of the protective sleeve is designed to be of a cross-shaped structure, and four obtuse angles on the outer side of the protective sleeve correspond to the filling ropes respectively; the filling ropes are arranged on the opposite sides of the adjacent optical fiber bundles; wherein the filling rope is designed by adopting a polypropylene hollow pipe material, the filling rope is not filled, and one side, opposite to the optical fiber bundle and the protective sleeve, of the filling rope is filled with a cable core filler. According to the utility model, the tensile performance of the optical cable during laying is improved, and the problem that internal optical fibers are easy to break when the optical cable is stressed and pulled is solved.

The utility model provides a watertight connector. The socket comprises a socket shell, a connecting end and a plugging end are formed on the socket shell, and an equipment cabin is formed between the connecting end and the plugging end in the socket shell; the connecting end is used for connecting a photoelectric composite cable, the plugging end is provided with an optical fiber connector and a power supply connector, the tail end of the photoelectric composite cable is located in the equipment cabin, an optical fiber bundle on the photoelectric composite cable is connected with the optical fiber connector, and a wire on the photoelectric composite cable is connected with the power supply connector; a pouring cavity is formed in the end, close to the connecting end, in the equipment cabin, at least part of the tail end, wrapped with the Kevlar layer, of the photoelectric composite cable is located in the pouring cavity, and epoxy resin is poured into the pouring cavity. According to the watertight connector provided by the invention, the connection structure of the photoelectric composite cable can be simplified.

A coherent fiber optic bundle breakout cable assembly includes a trunk fiber bundle having a plurality of optical fibers in a close-packed 2D array at a trunk connector end face, and multiple breakout bundles emanating from the trunk fiber bundle and each including a group of optical fibers in a close-packed 2D array at a breakout connector end face, with optical fibers being in lateral contact with one another. Bonding material is arranged in interstitial spaces of optical fibers near ends of each breakout bundle. A method for fabricating such an assembly includes holding the plurality of optical fibers within an elastomeric fixture, dicing the plurality of fibers to provide diced ends thereof, selectively applying and curing bonding material in interstitial spaces between optical fibers proximate to the diced ends according to a bundle-forming pattern, separating groups of optical fibers into breakout bundles, and retaining each breakout bundle in a corresponding breakout bundle ferrule aperture of one or more breakout bundle ferrules.

A near-wall velocimetry probe includes a probe body configured for flush mounting on a surface, at least one tracer source mounted to or integrated within the probe body, at least one fiber bundle mounted to or integrated within the probe body, and at least one detector optically coupled to the at least one fiber bundle. The at least one fiber bundle is configured to capture optical signals from the tracers. The probe may include an illumination source embedded within the probe body and optical filters coupled to the fiber bundle. Methods for measuring near-wall flow velocity using the probe and systems for near-wall velocimetry are also provided.

Provided in the present invention are a fully dry loose tube, a manufacturing method therefor, a manufacturing apparatus, and an optical cable. The manufacturing apparatus for a fully dry loose tube comprises: a pay-off device; an optical unit electrostatic polarization device to electrostatically polarize an optical unit entering the optical unit electrostatic polarization device; a coupling device to receive the electrostatically polarized optical unit; a water-blocking powder electrostatic polarization device connected to the coupling device and sending electrostatically polarized water-blocking powder to the coupling device in order to be coupled with the optical unit to form an optical fiber bundle, the polarity of the optical unit being opposite the polarity of the water-blocking powder; an extruder to receive the optical fiber bundle and coat the optical fiber bundle with a plastic layer; a vacuum water trough, which is arranged downstream of the extruder and is configured to round the optical fiber bundle coated with the plastic layer to form a loose tube; and a cooling water trough to cool the rounded loose tube. On the basis of the manufacturing apparatus for a fully dry loose tube in the present invention, active coupling of the optical unit and the water-blocking powder can be achieved, ensuring uniform distribution of the water-blocking powder and improving the roundness of the loose tube.

The application provides a photoacoustic endoscope and an endoscope system. The photoacoustic endoscope comprises a light guide part, an operation part and an insertion part, a fiber bundle extends from the light guide part to a head end part at the distal end of the insertion part via the operation part, the fiber bundle comprises a main trunk section, a first branch section and a second branch section, the photoacoustic endoscope further comprises a joint assembly, the joint assembly comprises a main trunk joint, a first branch joint and a second branch joint which are independently and detachably connected to the main trunk joint, the proximal end of the main trunk section is optically coupled to a light guide interface on the light guide part, the distal end of the main trunk section is connected to the main trunk joint, the proximal end of the first branch section is connected to the first branch joint, the proximal end of the second branch section is connected to the second branch joint, the distal ends of the first branch section and the second branch section are both fixed to the head end part, and the distal end of the main trunk section is optically coupled to the proximal ends of the first branch section and the second branch section. Such a photoacoustic endoscope can be conveniently disassembled, repaired or replaced when returned for repair, has better maintainability and better user experience.

The invention discloses an automobile flexible luminescent material and a preparation method thereof, and relates to the technical field of automobile interiors. The light-emitting decorative fabric comprises a decorative layer, a light-transmitting fabric layer, a light-emitting fabric layer and a flexible substrate layer which are sequentially bonded through glue from outside to inside, the light-emitting fabric layer is formed by interweaving a plurality of warp yarns and weft yarns, the weft yarns are polymer optical fibers, at least one end of each weft yarn penetrates through an optical fiber bundling pipe and then is connected to a light source, and the light-transmitting fabric layer is connected to the flexible substrate layer. The warp yarn is divided into a plurality of adjacent tension adjusting areas in the length direction of the weft yarn, and the tension of the adjacent tension adjusting areas is gradually increased according to the distance between the adjacent tension adjusting areas and the light source from small to large; the tension of the adjacent tension adjusting areas is controlled to be gradually increased according to the distance between the light source and the tension adjusting areas from small to large, so that the light emitting uniformity of the light emitting fabric is improved.

The application discloses a manufacturing process of a quartz optical fiber image transmission bundle, which comprises a threading plate and a straight line chuck, a plurality of threading holes are formed on the surface of the threading plate, the plurality of threading holes are arranged in a honeycomb shape, a quartz optical fiber is first perforated to form a threading-out section; glue is dropped on the threading-out section to obtain a first shaped clamping end; the optical fiber is pulled out in parallel until a required length is reached to obtain an optical fiber arrangement bundle, then glue is again dropped on the optical fiber on the back side of the threading plate, and a second shaped clamping end is obtained after solidification; the second shaped clamping end is cut to obtain an optical fiber arrangement section with a third shaped clamping end, and the optical fiber arrangement section is immersed in sulfuric acid to remove the coating layer on the surface of the optical fiber; then the first shaped clamping end and the third shaped clamping end are twisted and glue is dropped, the first shaped clamping end and the third shaped clamping end are cut off after solidification, and the finished product is obtained after grinding and polishing. The application breaks through the blockade of the prior art to prepare the quartz optical fiber bundle, has low cost and is easy to produce.

The utility model discloses an integrated two -dimensional optical fiber array module, include: fixed base, be equipped with the assembly recess on the fixed base, the optical fiber fixed base piece of card embedding fixed in the assembly recess, the optical fiber fixed base piece is made by glass material and adopts laser processing, be equipped with a plurality of through arrangement and array distribution's optical fiber fixed hole on the optical fiber fixed base piece, and the one side of optical fiber fixed hole is equipped with the guide mouth, and, optical fiber group, optical fiber group includes a plurality of optical fiber bundles, and the front end of optical fiber bundle is from the guide mouth and enters the optical fiber fixed hole, and fills with the glue solid layer in the guide mouth and the optical fiber fixed hole to fix optical fiber bundle, by adopting the optical fiber fixed base piece made of glass material to replace the multilayer single crystal silicon base piece, on one hand manufacturing cost project, and the processing assembly process is simpler, and thus production efficiency is higher, on the other hand can eliminate multilayer single crystal silicon base piece after assembling and appear corresponding precision error, has improved the optical fiber direction precision.

This invention relates to the field of water radiance measurement technology, and particularly to an enhanced water radiance sensor based on a polarizing filter. The sensor comprises a polarizing filter, a Kohler illumination system, a shaping fiber bundle, a spectrometer, and a host computer, arranged sequentially. The polarizing filter is positioned at a preset position at the front end of the optical path of the Kohler illumination system, which converts natural light from the water surface into a uniform and controllable light source. The incident end of the shaping fiber bundle is connected to the Kohler illumination system, and the exit end is connected to the spectrometer. The spectrometer is connected to the host computer. The water radiance passes sequentially through the polarizing filter, the Kohler illumination system, and the shaping fiber bundle before entering the spectrometer. The spectrometer converts the received optical signal into an electrical signal and transmits it to the host computer. The advantage of this invention is that by employing the Kohler illumination system, the field of view of the enhanced water radiance sensor is reduced to ±2°, solving the problem of poor glare suppression under large field of view in traditional sensors.