34 results about "Bare fiber" patented technology

The invention relates to an optical fiber drawing method integrated with a coloring function and a production system, and relates to the technical field of optical fiber manufacturing, and the method comprises the following steps: melting and drawing an optical fiber preform to form a bare fiber; the bare fiber is cooled; coating the cooled bare fiber twice to form an inner coating and an outer coating; performing primary UV curing on the inner coating and the outer coating to enable the outer coating to reach a semi-cured state; coating coloring ink on the surface of the outer coating in a semi-cured state; performing secondary UV curing on the coloring ink, so that the coloring ink is cured, and the inner coating and the outer coating are finally cured; and the cured optical fiber is detected and taken up. The coloring procedure is integrated into the wire drawing process, integrated continuous production is achieved, and optical fiber microbend loss caused by multiple times of winding and unwinding is avoided; by means of molecular activity in a semi-cured state, coloring ink permeates to form an interpenetrating network structure, and adhesive force is improved.

A colored optical fiber comprises a bare optical fiber, a primary layer formed of a first ultraviolet curing resin covering the bare optical fiber, and a secondary layer formed of a second ultraviolet curing resin covering the primary layer, wherein a Young's modulus of the primary layer is smaller than 70% with respect to a saturated Young's modulus of the primary layer, and wherein the saturated Young's modulus of the primary layer is smaller than or equal to 0.85 MPa.

The invention relates to the technical field of optical fiber communication, in particular to a bare fiber FAU grinding clamp which comprises a clamp body, a fixing sleeve is arranged below the clamp body in a piston inserting mode, a rotating seat is rotationally connected to the fixing sleeve, an adjusting seat is arranged above the rotating seat, and a transmission mechanism is fixedly connected to one side of the adjusting seat. One end of the transmission mechanism is rotatably connected with the movable frame, the movable frame is rotatably connected with the turnover seat, the turnover seat is fixedly connected with the plurality of automatic locking mechanisms, and the problems that the operation difficulty is high and the consistency cannot be effectively ensured in the prior art are solved through fine assembly of the extension size of the optical fiber; the grinding angle of the extending bare fiber is ensured, and the difficulty of FA assembly is greatly reduced), and meanwhile, the extending angle of the FA bare fiber is ensured, so that the coupling precision is higher, the output power is stable, and the material loss caused by vertical inconsistency of FA assembly is greatly reduced.

1. Name of this product design: Winding Fiber Optic Storage Tray. 2. Purpose of this design: For winding and storing bare optical fibers, armored optical fibers, and other optical fibers. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: 3D view 1.

A cladding light stripper and a manufacturing method therefor, and an optical fiber laser, relating to the technical field of cladding light strippers. The cladding light stripper (100) comprises a double-clad optical fiber assembly (1) and triple-clad bare fibers (2); the double-clad optical fiber assembly (1) comprises two sections of double-clad optical fibers (11), each double-clad optical fiber (11) comprises a double-clad bare fiber (111) and a coating layer (112) which are concentrically arranged in sequence from inside to outside, and the double-clad bare fiber (111) extends out of the coating layer (112); there are multiple sections of triple-clad bare fibers (2), the multiple sections of triple-clad bare fibers (2) are sequentially welded to form a main body (3), the two sections of double-clad optical fibers (11) are respectively welded to two ends of the main body (3) by means of the double-clad bare fibers (111), and a stripper is formed on the main body (3). The cladding light stripper (100) can be constructed from multiple sections of triple-clad bare fibers (2) while preserving the original advantages of the double-clad optical fibers (11) and the triple-clad bare fibers (2); this design can avoid the formation of local hot spots in any section of triple-clad bare fiber (2) due to prolonged high-power operation, thereby significantly improving the cladding light stripping ability of the cladding light stripper (100).

This application discloses a method for enhancing the quality of bare fiber sensing signals in vehicle-mounted vibration environments. It relates to the field of fiber optic sensing signal quality enhancement, and utilizes a multi-axis inertial measurement unit and a vibration sensing network to construct a spatiotemporal feature tensor, enabling three-dimensional dynamic perception of the vibration environment. Filtering parameters and gain are dynamically configured based on vibration characteristics to ensure stable signal acquisition under strong vibration conditions. A deep feature decoupling network, combined with vibration environment information, effectively separates noise from the target signal, improving the signal-to-noise ratio. A dynamic compensation module, based on a physical heuristic model, corrects vibration-induced transmission distortion from three dimensions: polarization state, birefringence, and microbending loss, ensuring the physical integrity of the signal. A closed-loop collaborative control mechanism dynamically optimizes the parameters of each module through real-time signal quality feedback, forming an adaptive optimization closed loop. Through spatiotemporal multi-dimensional collaborative processing, high-quality and robust enhancement of bare fiber sensing signals in vehicle-mounted vibration environments is achieved.

This utility model relates to a bare optical fiber polishing fixture, including a polishing jig and a positioning jig. The polishing jig includes a positioning plate, an upper pressure plate, and a lower base plate stacked sequentially. The positioning plate has an optical fiber positioning groove extending through its front and rear ends. The optical fiber positioning groove is formed by an array of bare fiber grooves for accommodating bare optical fibers. The upper pressure plate is located at the upper part of one end of the positioning plate and is attached to the positioning plate to clamp the bare optical fiber. The lower base plate is located at the lower part of one end of the positioning plate and is attached to the positioning plate to support the positioning plate. The polishing jig is placed on the positioning jig to position the length of the bare optical fiber extending out of the polishing jig. This utility model, through the cooperation of the polishing jig and the positioning jig, not only enables multiple optical fibers to be fixed simultaneously in the polishing jig for overall clamping, improving clamping stability, but also reduces the risk of easy breakage of the end of a single optical fiber due to friction from the polishing paper, thereby improving the polishing efficiency of bare optical fibers.

The application discloses a method for inhibiting stimulated Brillouin scattering of a single-frequency fiber laser gain fiber, which comprises the following steps: stripping the coating layer of the gain fiber to obtain a bare fiber, wiping the bare fiber clean, and then positioning the two ends of the bare fiber by clamping the two ends of the bare fiber with a fiber clamp; heating the bare fiber by moving step by step according to a fixed length of moving interval from one end to the other end along the axial direction of the bare fiber; and increasing one or both of the temperature and the time of heating step by step after each movement, or decreasing one or both of the temperature and the time of heating step by step. The method for inhibiting stimulated Brillouin scattering of a single-frequency fiber laser gain fiber provided by the application can adjust the gradient distribution of the doped ions in the gain fiber by controlling the heating temperature, the heating time and the heating position direction parameters in a heat diffusion manner, and can broaden the Brillouin gain spectrum in the gain fiber while keeping the highest temperature of the gain fiber basically unchanged.

The utility model relates to an optical fiber coating layer cleaning device which comprises two optical fiber clamping mechanisms for clamping optical fibers and a cleaning electric sliding table moving in the length direction of the optical fibers, a stripping mechanism driving air cylinder and a cleaning mechanism driving air cylinder are installed on a moving portion of the cleaning electric sliding table, a stripping mechanism is installed on the stripping mechanism driving air cylinder, and a cleaning mechanism is installed on the cleaning mechanism driving air cylinder. A cleaning mechanism is installed on the cleaning mechanism driving air cylinder and comprises a cleaning support and a cleaning pneumatic clamping jaw fixedly connected to the cleaning support, cleaning jaws are fixedly connected to two clamping fingers of the cleaning pneumatic clamping jaw, two cloth strip frames are installed on the cleaning support, and the cloth strip frames are fixedly connected to the cleaning pneumatic clamping jaw. According to the optical fiber cleaning device, the optical fiber is clamped through the cloth strips, the bare fiber position of the optical fiber is subjected to friction cleaning, the cleaning effect is improved by spraying alcohol, the cloth strips are moved through the air cylinder, and therefore the optical fiber is cleaned through the clean cloth strips all the time. And the cleanliness of the bare fiber is improved, so that the subsequent melting operation is facilitated.

To provide an optical fiber core wire with high water resistance even under low loads where delamination may occur.SOLUTION: There is provided an optical fiber core wire including: an optical fiber bare wire; a primary layer which coats the optical fiber bare wire and is formed of a first ultraviolet curable resin; and a secondary layer which coats the primary layer and is formed of a second ultraviolet curable resin. When a load is applied to the optical fiber core wire perpendicular to its longitudinal direction, delamination occurs at a load of 330 g or less with a ratio of 50%. When the optical fiber core wire is immersed in 60°C warm water for 200 days, delamination does not occur.SELECTED DRAWING: Figure 1

This invention discloses an integrated method and tooling for precise fiber stripping and online strength testing of optical fibers, relating to the field of optical fiber device manufacturing and testing technology. The method includes: fixing the optical fiber to a dedicated tooling; pushing the tooling so that its first limiting part abuts against the stripping fixture of a fiber stripping machine, mechanically determining the stripping length and performing the stripping; transferring the tooling to an integrated testing device without disassembly, applying standardized bending stress to the bare fiber; and determining the quality based on the fracture condition. The tooling includes a base with a first limiting part and a mounting groove, an assembly block with a groove, and a clamping block with a second limiting part. The arc-shaped surfaces of the two limiting parts restrict the bending amount. This invention fundamentally eliminates the influence of equipment accuracy on the stripping length through mechanical limiting, achieves online non-destructive full inspection of micro-cracks through standardized bending stress, and completes two processes in a single clamping operation through the tooling, significantly improving the accuracy, efficiency, and reliability of optical fiber connector manufacturing.

The present invention proposes a fiber optic self-monitoring FRP rod and a fiber stripping method thereof, belonging to the field of intelligent structural materials. This invention solves the problem of existing self-monitoring FRP bars / rods that it is difficult to simultaneously ensure high fiber bonding performance and convenient fiber stripping. The fiber optic self-monitoring FRP rod comprises a bare optical fiber, a thermoplastic tight jacket layer, and a thermosetting FRP layer. The bare optical fiber is coated with a thermoplastic tight jacket layer, which is then coated with a thermosetting FRP layer. The thermosetting FRP layer comprises fibers and a thermosetting resin. The fibers are impregnated with the thermosetting resin, then wrapped around the thermoplastic tight jacket layer and subjected to a pultrusion process to form the thermosetting FRP layer. It is primarily used for structural health monitoring.

The invention provides a coating device of a high-temperature-resistant metal coating optical fiber and a using method, and relates to the technical field of optical fiber coating devices.The coating device comprises a coating mechanism, the coating mechanism comprises a mold, the mold comprises a mold barrel, a coating cavity and a mold core, the coating cavity is arranged in the mold barrel, and the mold core is arranged in the coating cavity; the mold core comprises a mold core cavity and a feeding hole, the mold core cavity is formed in the mold core, the feeding hole is formed between the mold core cavity and the coating cavity and enables the mold core cavity and the coating cavity to be communicated, the mold core cavity is cylindrical, and the height of the mold core cavity can be adjusted; the mold core further comprises an upper fiber penetrating hole and a lower fiber penetrating hole, the lower fiber penetrating hole is formed under the upper fiber penetrating hole, the upper fiber penetrating hole and the lower fiber penetrating hole are both communicated with the mold core cavity, and the coating thickness and quality can be controlled by adjusting the height of the mold core cavity; the position of the lower bottom surface of the mold core cavity is adjusted, the thickness of the metal coating coated outside the bare fiber can be accurately controlled, and the lower the position of the lower bottom surface of the mold core cavity is, the smaller the thickness of the metal coating of the coated optical fiber is; bubbles in the metal solution can be controlled by adjusting the position of the upper bottom surface of the mold core cavity; the higher the position of the upper bottom surface of the mold core cavity is, the smaller the probability that bubbles appear in the metal solution in the mold core cavity is, the higher the uniformity of the metal coating of the produced optical fiber is, and the better the quality is.

The invention discloses an in-operation OPGW fiber core strain safety threshold calculation method and system, and relates to the technical field of optical cable fiber core strain. According to the technical key points, the method comprises the following steps: determining the maximum allowable strain value of an OPGW cable body based on a cable body stress and fiber core strain correlation model obtained through simulation under a reference working condition without other additional loads; determining the maximum bearing strain value of the OPGW cable body based on a cable body stress and fiber core strain correlation model obtained by simulation under the working condition of icing load; under the steady-state working condition of considering the creep effect, the corresponding relation between the icing thickness and the fiber core strain is designed based on the maximum icing value, then the OPGW fiber core strain increment after the icing load is overlaid is calculated according to the corresponding relation, and the OPGW fiber core steady-state safety threshold value is determined by combining the quantitative relation between the operation age limit and the optical cable excess length and the OPGW fiber core strain increment caused by icing. According to the method, the limitation of a traditional single bare fiber strain threshold value is broken through, and a safety evaluation model closer to engineering practice is established.

An optical connector includes a ferrule having a fiber hole, a plurality of optical fibers that are inserted into the fiber hole, and an adhesive that fixes the plurality of optical fibers to the ferrule. Each of the plurality of optical fibers has a bare fiber and a coating that partially covers the bare fiber, a portion of the bare fiber that is exposed from the coating has a small diameter portion that is located inside the fiber hole and a large diameter portion that has a larger diameter than the small diameter portion, an injection hole for injecting the adhesive is not formed in a region of the ferrule orthogonal to a longitudinal direction of the fiber hole from the small diameter portion, and an injection hole is formed in a region of the ferrule orthogonal to the longitudinal direction from the large diameter portion.

The invention provides special wire drawing equipment and method for preparing a fiber bragg grating. The equipment comprises a wire drawing furnace and an ultraviolet exposure system which are sequentially arranged from high to low, melting the optical fiber preform into a bare fiber by a fiber drawing furnace, and inscribing a grating on the bare fiber by an ultraviolet exposure system; the sensibilization system is arranged between the wire drawing furnace and the ultraviolet exposure system; the sensibilization system comprises an oxyhydrogen blast burner used for forming oxyhydrogen flames, and the formed oxyhydrogen flames are aligned with the grating inscribing area in the bare fiber for sensibilization treatment. According to the invention, the sensitization system is additionally arranged between the fiber drawing furnace and the grating inscribing system, hydrogen and oxygen are combusted to form oxyhydrogen flame, and the bare fiber which is just fused into the fiber is subjected to sensitization treatment, so that the photosensitivity of the grating inscribing area is improved, and the preparation of the fiber grating with high reflectivity is further realized.

The present disclosure relates generally to a fiber holder for holding optical fibers. The fiber holder can include a main holder body having a length that extends between first and second ends of the main holder body, a width that extends between first and second side walls of the main holder body, and a height that extends between top and bottom sides of the main holder body. The main holder body can define a plurality of fiber positioning grooves that extend along the length of the main holder body and spaced across the width of the main holder body. The main holder body also includes a fiber engagement structure having a fiber engagement surface. The fiber engagement structure can be aligned with an open region that interrupts the plurality of fiber positioning grooves. The fiber engagement structure can extend through the height of the main holder body from the top side to the fiber engagement surface.

The present disclosure relates generally to a bare fiber connection system that includes first and second multi-fiber fiber optic connectors that have a retractable shroud with a pivotal locking member mounted thereon. The pivotal locking member can be configured to lock the retractable shroud in an extended position. The pivotal locking member can be pivoted about a pivot point while remaining attached to the retractable shroud to unlock the retractable shroud such that the retractable shroud can move to a retracted position.

This invention discloses a method for preparing a fully deglassed, low-resistance drift cobalt-based amorphous alloy bare wire. The method involves glass-coating a cobalt-based amorphous alloy master alloy, followed by glass removal to obtain an initial bare wire; this wire is then subjected to multiple drawing passes, achieving a total true strain of 0.02–0.12 and a single-pass true strain ≤0.035, satisfying the required parameters. F 1 / F b =0.02~0.10; sizing bare yarn is subjected to two-stage annealing under an oxygen content of 10~120 ppm. T 1. Satisfy T x1 -130℃≤ T 1≤ T x1 -90 ℃ T 2. Satisfy T x1 -70℃≤ T 2≤ T x1 -35 ℃ T x1 The first crystallization initiation temperature was determined using differential scanning calorimetry, and conditions were applied in the low-temperature and high-temperature sections respectively, satisfying... F 2 / F b =0.01~0.10、 F 3 / F b Axial micro-tension of 0.01–0.10; surface smoothing treatment and low-temperature passivation treatment. This method solves the problems of difficulty in maintaining the amorphous state of fully devitrified bare fibers and long-term impedance drift through the synergistic effect of minimal true strain drawing, normalized two-stage annealing and micro-oxygen surface stabilization.

This invention proposes a special fiber drawing equipment and method for fabricating fiber gratings. The equipment includes a fiber drawing furnace and an ultraviolet exposure system arranged sequentially from high to low. An optical fiber preform is melted into bare fiber in the drawing furnace, and the ultraviolet exposure system inscribes the grating onto the bare fiber. A sensitization system is also provided, positioned between the drawing furnace and the ultraviolet exposure system. The sensitization system includes an oxyhydrogen torch for forming an oxyhydrogen flame, which is directed at the grating inscription area in the bare fiber to enhance its sensitivity. This invention, by adding a sensitization system between the drawing furnace and the grating inscription system, utilizes the combustion of hydrogen and oxygen to form an oxyhydrogen flame to sensitize the freshly melted bare fiber, thereby improving the photosensitivity of the grating inscription area and achieving the fabrication of highly reflective fiber gratings.

The application relates to an optical fiber and connector assembling method. The method comprises the following steps: preparing an optical fiber and a ferrule, wherein the length of the ferrule is L1, the inner hole of the ferrule is an inner tapered hole, the inner tapered angle of the inner tapered hole is 60 degrees, the opening diameter of the inner tapered hole is W1, and the outer diameter of the coating layer of the optical fiber is W2; stripping the optical fiber, stripping the coating layer at one end of the optical fiber to obtain a bare fiber, the length of the bare fiber is L2, wherein the bare fiber is inserted into the inner hole of the ferrule from the inner tapered hole until the outer edge of the coating layer end surface and the inner wall of the inner tapered hole are in abutment, the length of the outermost end of the bare fiber inserted out of the inner hole of the ferrule is delta, the depth of the coating layer end surface inserted into the inner tapered hole is H, the optical fiber and the tail handle of the ferrule are fixedly connected, and then the part of the bare fiber inserted out of the inner hole of the ferrule is ground until the outer end of the bare fiber is flush with the outer end of the ferrule. The assembling method is favorable for reducing the process difficulty, improving the quality stability of the final product, and realizing the automation of the optical fiber and connector assembling process.

The utility model discloses a color strip optical fiber preparation device which comprises a rack, a coating die holder is fixedly mounted on one side of the rack, a bare optical fiber is slidably mounted in the coating die holder, a color strip optical fiber is formed at one end of the bare optical fiber, and a curing unit is fixedly mounted on the surface of one side of the rack. An upper positioning wheel, a twisting wheel and a lower positioning wheel are rotationally installed on one side of the machine frame through an installation frame, a diameter measuring instrument and a base are fixedly installed on one side of the machine frame, a compensation wheel is rotationally installed at one end of the base, a driving frame is arranged on one side of the machine frame, and a tension wheel and a traction machine are installed at the two ends of the driving frame respectively. Special colored coating resin is added in an outer layer coating process in an optical fiber production process for strip-shaped coating and curing, so that the optical fiber has the characteristics of identification and distinguishing, a uniform flow can be formed after combination and alignment, and the optical fiber is beneficial to installation control, convenient to produce, accurate and efficient.

The application relates to the technical field of SN connector production, and discloses a grinding device applied to an SN connector, which comprises two independently arranged grinding discs; the grinding disc comprises a disc body and a plurality of limiting pieces, the plurality of limiting pieces are uniformly arranged on the disc body at intervals, and the bottom of each limiting piece is provided with a through hole; the limiting pieces are used for fixing the SN connector, so that the to-be-ground fiber stubs pass through the through holes. The first fiber stub and the second fiber stub of the completed assembled connector are respectively ground through the grinding device, the assembly production efficiency of the connector is effectively improved, the foolproof effect is good, the whole production process does not need to be repeatedly disassembled, the risk of bare optical fiber breakage is avoided, and the product production yield and reliability are effectively improved.

A method and system for assembly and calibration of polarization-maintaining fibers in co-packaged optics is provided, the method includes the following steps: using a substrate with a plurality of V-shaped grooves arranged side by side, and placing a bare fiber segment of a polarization-maintaining fiber in each V-shaped groove; using a low-frequency vibrator to allow the bare fiber segment to move and rotate along the V-shaped groove, and controlling the length of the bare fiber segment extending out of the V-shaped groove; using an optical inspection lens set to monitor the continuous rotation, when the end-face of the bare fiber segment being rotated to a set angle, operating a first pressing assembly to press the bare fiber segment thereon; continuing to repeat the above steps until all the polarization-maintaining fibers being at the set angle, and then operating a second pressing assembly to press on the cladding segments.

The invention relates to a method for manufacturing a polarization maintaining optical fiber array for a CPO silicon optical engine. A substrate is provided with a platform with a plurality of V-shaped grooves and a supporting block; placing a bare optical fiber of a polarization maintaining optical fiber in one V-shaped groove, covering a temporary cover plate on the platform so as to press the bare optical fiber in the V-shaped groove, adjusting the polarization maintaining optical fiber so as to enable an included angle between a panda eye-fiber core-panda eye of the polarization maintaining optical fiber and the horizontal plane to be smaller than 3 degrees, dispensing glue, and bonding and fixing the bare optical fiber and the supporting block; the operation is repeated, and all the polarization maintaining optical fibers are adjusted and fixed; replacing a formal cover plate, dispensing soft glue to enable the cover plate, the polarization maintaining optical fiber and the substrate to be bonded and fixed, and dispensing hard glue to enable the cover plate, the bare optical fiber and the substrate to be bonded and fixed; cutting off the supporting block and the bare optical fiber on the supporting block to obtain a semi-finished polarization-maintaining optical fiber array; and grinding the end face of the semi-finished polarization-maintaining optical fiber array to obtain a finished polarization-maintaining optical fiber array. The method has the beneficial effects that high quality can be ensured, and the yield is greater than 99%.

The utility model discloses a rack type optical branching device, which comprises a branching device rack, a branching device module box and a tail fiber connector, the branching device module box is fixedly arranged in the branching device rack, a bare fiber branching device is arranged in the branching device module box, and optical fibers of the bare fiber branching device are in a bare fiber form; the splitter rack is provided with an input interface and an output interface; the input interface and the output interface are respectively provided with a plug made of an elastic material, the tail fiber connector is arranged outside the splitter rack, and the non-connecting head end of the tail fiber connector passes through the plug and enters the splitter module box to be in thermal shrinkage fusion welding with the optical fiber of the bare fiber splitter. The rack-type optical branching device can be directly connected to a terminal server when used in a machine room, an optical fiber connector is not needed, the requirements of customers for use, convenient connection, random movement of connection positions and the like can be met, fool operation is realized, and the efficiency and market competitiveness are greatly improved.

The utility model discloses an MPO optical fiber patch cord arrangement mechanism, which comprises a base, one end of the base is hinged with a lifting arm, and one end of the lifting arm is provided with a notch capable of longitudinally arranging bare optical fibers in parallel. One side of the lifting arm is provided with a pressing plate capable of compacting the bare optical fiber arranged in the notch and a moving structure for driving the pressing plate to move, the other side of the lifting arm is provided with a fixing structure capable of fixing an optical fiber cable, and the upper surface of the base is provided with a leveling structure for leveling the bare optical fiber; the fiber arranging machine is more convenient to use due to the integrated lifting moving structure and the fixed structure, the continuity of fiber arranging operation is improved, the fiber arranging efficiency can be improved, the fillet arrangement at the top of the notch is matched with the width allowing only a single bare fiber to enter, the fiber arranging difficulty can be reduced, and the fiber arranging efficiency is improved. Operators can easily clamp optical fibers into the notches one by one, and the optical fibers are arranged in parallel in a single row after entering the notches.

The present disclosure relates generally to a bare fiber connection system that includes first and second multi-fiber fiber optic connectors that have a retractable shroud with a pivotal locking member mounted thereon. The pivotal locking member can be configured to lock the retractable shroud in an extended position. The pivotal locking member can be pivoted about a pivot point while remaining attached to the retractable shroud to unlock the retractable shroud such that the retractable shroud can move to a retracted position.

The application relates to a ring spot combiner processing method and belongs to the technical field of ring spot combiners. The ring spot combiner processing method comprises the following steps: removing a coating layer of a preset number of optical fiber end portions to form bare fibers, and the bare fiber lengths of the optical fibers are sequentially increased; a fiber with a median bare fiber length is inserted into a central hole of a multi-hole tube with a preset number of hole positions, and the remaining optical fibers are respectively inserted into the remaining holes of the multi-hole tube; a volatile liquid is dropped on the bare fibers to gather the bare fibers of all the optical fibers into a bare fiber bundle, and the optical fibers are fixed at preset positions near the interface of the coating layer to form fixed parts; a sleeve is sleeved on the bare fiber bundle, and the residual volatile liquid on the bare fiber bundle is removed; the sleeve and the bare fibers are fixed at the sleeve opening of the sleeve by using low-refraction glue, and the sleeve and the bare fibers inside the sleeve are subjected to fusion tapering. Therefore, the ring spot combiner processing method saves operation time, reduces operation difficulty, and improves production efficiency.

To provide an optical fiber carrying resin molding capable of further improving measurement accuracy.SOLUTION: The optical fiber-supporting resin-molded article includes a long core 11, one or more optical fibers 12 extending in the direction of the axis O1 of the core 11, and a fixing member 112 for fixing the optical fibers 12 to the core 11, wherein the optical fibers 12 each include a bare fiber and an optical-fiber coating layer covering the peripheral surface of the bare fiber, and the fixing member 112 has a melting temperature lower than the melting temperatures of the core 11 and the optical-fiber coating layer.SELECTED DRAWING: Figure 4