Laser coupling device and method

Abstract

The present invention belongs to the field of laser synthesis technology, and specifically relates to a laser coupling device and method, which includes a fixed component and an input component and a receiving component therein, wherein the input component includes multiple input optical fibers and an input connector, and the receiving component includes a receiving fiber core and a receiving sleeve, wherein the receiving fiber core is connected to a receiving contact inside the receiving sleeve; a pressure liquid component is installed inside the fixed component, and the pressure liquid component includes a push plate 1 and a push plate 2, wherein the push plate 1 and the push plate 2 are respectively connected to the pressure plate 2 and the pressure plate 1. The present invention injects glue from the input tube and the receiving tube respectively, so that the glue at both ends can flow toward the input connector and the receiving sleeve respectively through the input optical fiber and the cladding, and then pushes the push plate 1 and the push plate 2 relative to each other, so that the push plate 1 and the push plate 2 respectively push the glue into the connecting tube through the pressure plate 2 and the pressure plate 1, thereby ensuring that the glue completely penetrates the gap between the various optical paths.

Description

Technical Field

[0001] The present invention belongs to the technical field of laser synthesis, and in particular relates to a laser coupling device and method. Background Art

[0002] Laser coupling devices, which cleverly combine the laser beam generated by a laser diode with an optical fiber, are widely used in various fields of modern technology. They primarily consist of key components, including a laser diode, a fiber coupler, a cooling system, and a control circuit. The laser diode generates a high-power laser beam; the fiber coupler ensures that this beam precisely enters the optical fiber for transmission; the cooling system maintains a stable temperature for the laser diode, guaranteeing its performance and lifespan; and the control circuit ensures the overall system's regulation and stable operation.

[0003] Mode field diameter is a parameter of the fiber coupler that measures the effective transmission range of the laser signal in the optical fiber. The larger the fiber mode field diameter, the higher the laser coupling efficiency. Improving the fiber beam coupling efficiency can be achieved by changing the fiber mode field diameter and the fiber beam convergence. Changing the fiber mode field diameter usually involves melting and expanding the optical fiber, deforming the fiber core, and improving the laser coupling efficiency. For example, the laser fiber coupler and its manufacturing method disclosed in publication number CN113866892B mainly uses laser physical beam shrinking and double-reflection optical fiber microstructures to perform multi-path beam shaping to improve the beam quality. In order to ensure the moisture-proof and connection performance of the optical fiber, it is usually necessary to inject glue into the connection part of the optical fiber. Since the optical fiber connection end is formed by beam shaping of multiple light paths, it is difficult for the glue to completely penetrate the gap between the light paths. Summary of the Invention

[0004] The purpose of the present invention is to provide a laser coupling device and method to address the shortcomings of the prior art and solve the technical problems in the prior art.

[0005] The objectives of the present invention can be achieved by the following technical solutions: A laser coupling device includes a fixed component and an input component and a receiving component therein, the input component including a plurality of input optical fibers, the plurality of input optical fibers forming an input connector near one end of the receiving component, the receiving component including a receiving fiber core and a cladding outside the receiving fiber core, a receiving sleeve being installed on the cladding near one end of the input component, the receiving fiber core being connected to a receiving contact inside the receiving sleeve, and the input connector being docked with the receiving contact inside the receiving sleeve;

[0006] A pressure liquid assembly is installed inside the fixed assembly, and the pressure liquid assembly includes a push plate 1 and a push plate 2, which are respectively connected to the pressure plate 2 and the pressure plate 1, each input optical fiber is inserted into the socket on the pressure plate 2, and the socket is fitted with the input optical fiber, and the cladding is inserted into the pressure plate 1, and the pressure plate 1 is fitted with the cladding;

[0007] The glue liquid is injected into the two side openings of the fixed component respectively, and then the push plate 1 and the push plate 2 are pushed against each other and drive the pressure plate 2 and the pressure plate 1 to squeeze the glue liquid toward the connection end of the input component and the receiving component.

[0008] As a further optimization or improvement of this solution, the fixed component is set to close from both ends to the middle. The fixed component includes an input tube and a receiving tube and a connecting tube located between the two. Multiple input optical fibers are installed inside the input tube, the cladding and the receiving fiber core are installed inside the receiving tube, and the input component and the receiving component are plugged in inside the connecting tube.

[0009] As a further optimization or improvement of this solution, the receiving component includes a receiving end limiting ring, the input component includes an input end limiting ring, the input end limiting ring is sleeved on the input optical fiber, the cladding is fixedly connected to the mounting platform, the receiving end limiting ring is sleeved on the mounting platform, and a liquid inlet and a jack are provided on the receiving end limiting ring.

[0010] As a further optimization or improvement of this solution, the push plate 1 is connected to the pressure plate 2 through the connecting rod 2, and the push plate 2 is connected to the pressure plate 1 through the connecting rod 1. A heat-conducting microtube is installed on the pressure plate 2, and the heat-conducting microtube passes through the input end limit ring and is inserted into the jack.

[0011] As a further optimization or improvement of this solution, the end of the heat-conducting micro-tube away from the push plate 1 is equipped with conductive micro-hairs, and scrapers are installed inside the socket and the pressure plate 1.

[0012] As a further optimization or improvement of this solution, a limit protection component is installed on the pressure liquid component, and the limit protection component includes a cable tie installed on push plate one and a limit slot opened on push plate two. A fixing ring is installed on the outside of the input tube and the receiving tube, and the cable tie passes through the fixing ring and engages with the limit slot.

[0013] As a further optimization or improvement of this solution, teeth are installed on the cable tie, a fixing platform is installed inside the limiting slot, and a top plate is installed on the fixing platform. When the cable tie is inserted into the limiting slot, the top plate abuts against the teeth.

[0014] A laser coupling method is applied to the laser coupling device as described above, and comprises the following steps:

[0015] Step S1: Melt and expand the input component and the receiving component, and form an outer tapered input connector and an inner tapered receiving sleeve by etching;

[0016] Step S2: insert multiple input optical fibers into the sockets on the second pressing plate respectively, then integrate the input connectors and insert them into the input end limiting ring, at which point the scraper inside the socket fits the input optical fiber;

[0017] Step S3: The receiving end limiting ring is placed on the mounting platform on the cladding, and then the input assembly and the receiving assembly are respectively inserted from the input pipe and the receiving pipe. During this process, the input connector and the receiving sleeve are connected in the connecting pipe. After the input connector and the receiving sleeve are connected, the input end limiting ring and the receiving end limiting ring are respectively clamped at both ends of the connecting pipe;

[0018] Step S4: Inject the glue from the input tube and the receiving tube respectively, so that the glue at both ends can flow toward the input connector and the receiving sleeve respectively through the input optical fiber and the cladding, and then push the push plate 1 and the push plate 2 relative to each other, so that the push plate 1 drives the pressure plate 2 to enter the input tube through the connecting rod 2, and at the same time, the push plate 2 drives the pressure plate 1 to enter the receiving tube through the connecting rod 1. As the push plates 1 and 2 move, the pressure plates 2 and 1 respectively push the glue to be squeezed into the inside of the connecting tube. In this process, the pressure plate 2 pushes the glue through the internal gap of the input end limit ring into the connecting tube, and the pressure plate 1 pushes the glue through the liquid inlet into the connecting tube, so that the glue inside the input tube and the receiving tube merges into the connecting tube.

[0019] As a further optimization or improvement of this solution, step S4 specifically includes the following steps:

[0020] Step S41: During the process of pushing the push plate 1, the heat-conducting micro-tube on the pressure plate 2 passes through the input end limit ring and enters the connecting tube along with the glue. During this process, the conductive micro-hairs on the heat-conducting micro-tube guide the glue entering the connecting tube. As the pressure plate 2 moves, the heat-conducting micro-tube is inserted into the jack on the receiving end limit ring;

[0021] Step S42: In the process of pushing push plate one, the cable tie on push plate one is inserted into the limiting slot on push plate two. At this time, the teeth on the cable tie move the top plate. When push plate one and push plate two stop pushing, that is, the glue is completely filled into the connecting tube, the top plate will abut the teeth on the cable tie, thereby fixing the position of push plate one and push plate two.

[0022] Beneficial effects of the present invention:

[0023] (1) The present invention injects glue into the input tube and the receiving tube respectively, so that the glue at both ends can flow through the input optical fiber and the cladding toward the input connector and the receiving sleeve respectively. Then, by pushing the push plate 1 and the push plate 2 relative to each other, the push plate 1 and the push plate 2 respectively push the glue into the interior of the connecting tube through the pressure plate 2 and the pressure plate 1;

[0024] Specifically, in the process of pushing the push plate one, the heat-conducting micro-tube on the pressure plate two will pass through the input end limiting ring and enter the connecting tube together with the glue. In this process, referring to the figure, the conductive micro-hairs on the heat-conducting micro-tube will guide the glue entering the connecting tube, avoiding the situation where the glue is blocked at the connecting tube port due to poor glue flow and narrow gaps in the connecting tubes, thereby improving the fluidity of the glue; as the pressure plate two moves, the heat-conducting micro-tube is inserted into the jack on the receiving end limiting ring. The heat-conducting micro-tube not only improves the glue sealing strength at the connection between the input component and the receiving component, but also improves the heat dissipation efficiency of the input component and the receiving component, reducing heat accumulation at the connection between the input connector and the receiving sleeve;

[0025] Specifically, in the process of pushing push plate one, the cable tie on push plate one is inserted into the limiting slot on push plate two. At this time, the teeth on the cable tie move the top plate. When push plate one and push plate two stop pushing, that is, the glue is completely filled into the connecting tube, the top plate will abut the teeth on the cable tie, thereby fixing the position of push plate one and push plate two, preventing the glue from overflowing from the connecting tube, ensuring that the connecting ends of the input component and the receiving component are completely immersed in the glue, and improving the connection performance of the input component and the receiving component. At the same time, after the cable tie is connected to the limiting slot, the cable tie can provide protection for the fixed component to prevent the fixed component from being bumped and broken.

[0026] (2) The present invention inserts multiple input optical fibers into the sockets on the second pressing plate respectively, and then integrates the input connector and inserts it into the input end limit ring, as shown in the figure. At this time, the scraper inside the socket fits the input optical fiber, and the scraper can effectively prevent the glue from overflowing from the second pressing plate;

[0027] Specifically, the receiving end limiting ring is placed on the mounting table on the cladding, as shown in the figure, and then the input component and the receiving component are respectively inserted from the input pipe and the receiving pipe. During this process, the input connector and the receiving sleeve are connected in the connecting pipe. After the input connector and the receiving sleeve are connected, the input end limiting ring and the receiving end limiting ring are respectively stuck at both ends of the connecting pipe. As shown in the figure, the input end limiting ring and the receiving end limiting ring can limit the input connector and the receiving sleeve, avoiding the secondary movement of the input component and the receiving component during the gluing process of the pressure liquid component, resulting in extrusion damage at the connection between the input connector and the receiving sleeve. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The present invention will be further described below with reference to the accompanying drawings.

[0029] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0030] Figure 2 It is a cross-sectional view of the overall structure of the present invention.

[0031] Figure 3 for Figure 2 A magnified view of the structure of part A.

[0032] Figure 4 This is a schematic diagram of the internal structure of the receiving component.

[0033] Figure 5 This is a schematic diagram of the overall structure of the receiving component.

[0034] Figure 6 Schematic diagram of the receiving end limit ring structure.

[0035] Figure 7 This is a schematic diagram of the installation of the input component and pressure plate 2.

[0036] Figure 8 This is a schematic diagram of the connection between the input component and the pressure liquid component.

[0037] Figure 9 Schematic diagram of the input end limit ring structure.

[0038] Figure 10 It is a schematic diagram of the structure of the second pressure plate.

[0039] Figure 11 For the Figure 10 Dashed line section view.

[0040] Figure 12 Schematic diagram of the scraper structure.

[0041] Figure 13 Schematic diagram of the conductive microhair structure.

[0042] The following are marked in the figure: 1. Fixing assembly; 101. Input tube; 102. Receiving tube; 103. Connecting tube; 2. Input assembly; 201. Input connector; 202. Input optical fiber; 203. Input end stop ring; 3. Receiving assembly; 301. Cladding; 302. Receiving fiber core; 303. Receiving sleeve; 304. Receiving contact; 305. Mounting platform; 306. Receiving end stop ring; 307. Liquid inlet; 308. 8. Socket; 4. Liquid pressure assembly; 401. Push plate 1; 402. Push plate 2; 403. Press plate 1; 404. Connecting rod 1; 405. Connecting rod 2; 406. Press plate 2; 407. Scraper; 408. Socket; 5. Limit protection assembly; 501. Cable tie; 502. Fixing ring; 503. Limit slot; 504. Top plate; 505. Fixing platform; 506. Teeth; 6. Thermal micropipe; 7. Conductive microhair. DETAILED DESCRIPTION

[0043] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0044] See also Figure 1-Figure 7 A laser coupling device, characterized in that: it includes a fixing component 1 and an input component 2 and a receiving component 3 therein, the input component 2 includes multiple input optical fibers 202, and the multiple input optical fibers 202 form an input connector 201 at one end near the receiving component 3, the receiving component 3 includes a receiving fiber core 302 and a cladding 301 outside the receiving fiber core 302, a receiving sleeve 303 is installed at the end of the cladding 301 near the input component 2, the receiving fiber core 302 is connected to a receiving contact 304 inside the receiving sleeve 303, and the input connector 201 is connected to the receiving contact 304 inside the receiving sleeve 303;

[0045] The fixed assembly 1 is internally mounted with a pressure liquid assembly 4, which includes a push plate 1 401 and a push plate 2 402. The push plate 1 401 and the push plate 2 402 are connected to the pressure plate 2 406 and the pressure plate 1 403, respectively. Each input optical fiber 202 is inserted into the socket 408 on the pressure plate 2 406, and the socket 408 fits the input optical fiber 202. The cladding 301 is inserted into the pressure plate 1 403, and the pressure plate 1 403 fits the cladding 301.

[0046] The glue is injected into the two side openings of the fixing component 1 respectively, and then the push plate 1 401 and the push plate 2 402 are pushed against each other and drive the pressing plate 2 406 and the pressing plate 1 403 to squeeze the glue toward the connection end of the input component 2 and the receiving component 3.

[0047] Specifically, the fixed component 1 is set to close from both ends to the middle. The fixed component 1 includes an input tube 101 and a receiving tube 102 and a connecting tube 103 located therebetween. Multiple input optical fibers 202 are installed inside the input tube 101, the cladding 301 and the receiving fiber core 302 are installed inside the receiving tube 102, and the input component 2 and the receiving component 3 are plugged in inside the connecting tube 103.

[0048] It should be noted that before connecting the input component 2 and the receiving component 3, they need to be melt-expanded, and the input component 2 and the receiving component 3 are melt-coned and then etched to form an outer conical input connector 201 and an inner conical receiving sleeve 303. The input component 2 and the receiving component 3 are inserted and connected from the input tube 101 and the receiving tube 102 respectively. The processing technology of melt expansion is a prior art, and the present invention will not elaborate on it, which does not affect the integrity of the present invention. The glue used in the present invention is a silicone adhesive with certain thermal conductivity. The scraper 407 is made of hard rubber material so that it can be completely fitted with the cladding 301 and the input optical fiber 202.

[0049] The method of using the present invention is as follows:

[0050] The input component 2 and the receiving component 3 are melted and expanded, and an outer tapered input connector 201 and an inner tapered receiving sleeve 303 are formed by etching.

[0051] like Figure 8 As shown, multiple input optical fibers 202 are respectively inserted into the sockets 408 on the second pressing plate 406, and then the input connector 201 is integrated and inserted into the input end limiting ring 203, as shown in FIG. Figure 7 As shown, at this time, the scraper 407 inside the socket 408 is attached to the input optical fiber 202, and the scraper 407 can effectively prevent the glue from overflowing from the second pressing plate 406;

[0052] The receiving end limiting ring 306 is placed on the mounting platform 305 on the cladding 301, as shown in FIG. Figure 5 As shown, the input assembly 2 and the receiving assembly 3 are then inserted into the input pipe 101 and the receiving pipe 102 respectively. During this process, the input connector 201 and the receiving sleeve 303 are connected in the connecting pipe 103. After the input connector 201 and the receiving sleeve 303 are connected, the input end limiting ring 203 and the receiving end limiting ring 306 are respectively stuck at both ends of the connecting pipe 103, as shown in FIG. Figure 2 As shown, the input end limiting ring 203 and the receiving end limiting ring 306 can limit the input connector 201 and the receiving sleeve 303, thereby preventing the pressure liquid component 4 from driving the input component 2 and the receiving component 3 to move twice during the gluing process, thereby preventing the connection between the input connector 201 and the receiving sleeve 303 from being squeezed and damaged.

[0053] The glue is injected from the input tube 101 and the receiving tube 102 respectively, so that the glue at both ends can flow through the input optical fiber 202 and the cladding 301 to the input connector 201 and the receiving sleeve 303 respectively. Then, by relatively pushing the push plate 1 401 and the push plate 2 402, the push plate 1 401 drives the pressure plate 2 406 to enter the input tube 101 through the connecting rod 2 405, and at the same time, the push plate 2 402 drives the pressure plate 1 403 to enter the receiving tube 102 through the connecting rod 1 404. As the push plates 1 401 and the push plates 2 402 move, the pressure plates 2 406 and the pressure plates 1 403 respectively push the glue to be squeezed into the inside of the connecting tube 103. In this process, as shown in FIG. Figure 9 As shown, the second pressing plate 406 pushes the glue liquid into the connecting pipe 103 through the internal gap of the input end limiting ring 203, as shown in FIG. Figure 5 As shown, the pressure plate 1 403 pushes the glue liquid into the connecting tube 103 through the liquid inlet 307 , so that the glue liquid inside the input tube 101 and the receiving tube 102 is merged into the connecting tube 103 .

[0054] In the process of pushing the push plate 1 401, the heat conducting micro-tube 6 on the pressing plate 2 406 will pass through the input end limit ring 203 and enter the connecting tube 103 together with the glue. Figure 13The conductive micro-hairs 7 on the heat-conducting micro-tube 6 guide the glue entering the connecting tube 103, avoiding the situation where the glue is blocked at the end of the connecting tube 103 due to poor glue flow and the narrow gap of the connecting tube 103, thereby improving the fluidity of the glue; as the second pressing plate 406 moves, the heat-conducting micro-tube 6 is inserted into the socket 308 on the limiting ring 306 of the receiving end. The heat-conducting micro-tube 6 not only improves the glue sealing strength at the connection between the input component 2 and the receiving component 3, but also improves the heat dissipation efficiency of the input component 2 and the receiving component 3, reducing heat accumulation at the connection between the input connector 201 and the receiving sleeve 303;

[0055] In the process of pushing the push plate 1 401, the cable tie 501 on the push plate 1 401 will be inserted into the limiting slot 503 on the push plate 2 402. At this time, the teeth 506 on the cable tie 501 will move the top plate 504. When the push plates 1 401 and 2 402 stop pushing, that is, the glue is completely filled into the connecting tube 103, the top plate 504 will abut the teeth 506 on the cable tie 501, thereby fixing the position of the push plates 1 401 and 2 402 to prevent the glue from overflowing from the connecting tube 103, ensuring that the connecting ends of the input component 2 and the receiving component 3 are completely immersed in the glue, thereby improving the connection performance of the input component 2 and the receiving component 3. At the same time, after the cable tie 501 is connected to the limiting slot 503, the cable tie 501 can provide protection for the fixing component 1 to prevent the fixing component 1 from being bumped and broken.

[0056] See also Figure 5-Figure 7 The receiving component 3 includes a receiving end limiting ring 306, and the input component 2 includes an input end limiting ring 203. The input end limiting ring 203 is sleeved on the input optical fiber 202. The cladding 301 is fixedly connected to the mounting platform 305. The receiving end limiting ring 306 is sleeved on the mounting platform 305. The receiving end limiting ring 306 is provided with a liquid inlet 307 and a jack 308.

[0057] It should be noted that, in the present invention, the input assembly 2 and the receiving assembly 3 are first inserted into the input tube 101 and the receiving tube 102 respectively, so that the input connector 201 is connected to the receiving sleeve 303 in the connecting tube 103, and then the push plate 1 401 and the push plate 2 402 are pushed to push the glue liquid injected into the input tube 101 and the receiving tube 102 into the connecting tube 103. In this process, in order to prevent the glue liquid from overflowing from the pressing plate 1 403 and the pressing plate 2 406, a scraper 407 is installed on the pressing plate 1 403 and the pressing plate 2 406. When the push plate 1 401 and the push plate 2 402 are pushed, the scraper 407 is pushed. Plate 407 can fit tightly against the input optical fiber 202 and the cladding 301. However, in the process of pushing push plate 1 401 and push plate 2 402, since the scraper 407 fits against the input optical fiber 202 and the cladding 301 respectively, when pushing push plate 1 401 and push plate 2 402, push plate 1 401 and push plate 2 402 will drive the input component 2 and the receiving component 3 to move relative to each other for a second time through the scraper 407. The secondary relative movement will cause another relative movement after the input component 2 and the receiving component 3 are connected, which may easily cause the input connector 201 and the receiving sleeve 3 to be squeezed and damaged.

[0058] In order to avoid the above problems, the present invention sets the receiving end limiting ring 306 on the mounting platform 305 on the cladding 301, as shown in FIG. Figure 5 As shown, the input assembly 2 and the receiving assembly 3 are then inserted into the input pipe 101 and the receiving pipe 102 respectively. During this process, the input connector 201 and the receiving sleeve 303 are connected in the connecting pipe 103. After the input connector 201 and the receiving sleeve 303 are connected, the input end limiting ring 203 and the receiving end limiting ring 306 are respectively stuck at both ends of the connecting pipe 103, as shown in FIG. Figure 2 As shown, the input end limiting ring 203 and the receiving end limiting ring 306 can limit the input connector 201 and the receiving sleeve 303 to prevent the input component 2 and the receiving component 3 from moving twice.

[0059] See also Figure 7-13 The push plate 1 401 is connected to the pressure plate 2 406 through the connecting rod 2 405, and the push plate 2 402 is connected to the pressure plate 1 403 through the connecting rod 1 404. The heat conducting micro tube 6 is installed on the pressure plate 206, and the heat conducting micro tube 6 passes through the input end limiting ring 203 and is inserted into the jack 308.

[0060] Specifically, the conductive micro-hairs 7 are installed at one end of the heat-conducting micro-tube 6 away from the push plate 1 401 , and the scrapers 407 are installed inside the socket 408 and the pressing plate 1 403 .

[0061] It should be noted that after the multiple input optical fibers 202 are shaped, a greater thermal effect will be generated during use, resulting in serious heating effects, which will affect the functions of related components and the service life of the entire device.

[0062] In order to avoid the above problems, the present invention installs a heat-conducting micro-tube 6 on the second pressing plate 406. When the push plate 1 401 is pushed to drive the second pressing plate 406 to squeeze the glue, the heat-conducting micro-tube 6 on the second pressing plate 406 will pass through the input end limit ring 203 and enter the connecting pipe 103 together with the glue. In this process, see Figure 13 The conductive micro-hairs 7 on the heat-conducting micro-tube 6 will guide the glue entering the connecting tube 103, avoiding the situation where the glue is blocked at the port of the connecting tube 103 due to poor glue flow and narrow gap of the connecting tube 103, thereby improving the fluidity of the glue; as the pressing plate 2 406 moves, the heat-conducting micro-tube 6 is inserted into the socket 308 on the receiving end limit ring 306. The heat-conducting micro-tube 6 not only improves the glue sealing strength of the connection between the input component 2 and the receiving component 3, but also improves the heat dissipation efficiency of the input component 2 and the receiving component 3, and reduces heat accumulation at the connection between the input connector 201 and the receiving sleeve 303.

[0063] See also Figure 1-Figure 3 A limit protection assembly 5 is installed on the pressure liquid assembly 4. The limit protection assembly 5 includes a cable tie 501 installed on the push plate 1 401 and a limit slot 503 opened on the push plate 2 402. A fixing ring 502 is installed on the outside of the input tube 101 and the receiving tube 102. The cable tie 501 passes through the fixing ring 502 and engages with the limit slot 503.

[0064] Specifically, teeth 506 are installed on the cable tie 501 , a fixing platform 505 is installed inside the limiting slot 503 , and a top plate 504 is installed on the fixing platform 505 . When the cable tie 501 is inserted into the limiting slot 503 , the top plate 504 abuts against the teeth 506 .

[0065] It should be noted that the fixing component 1 is made of a capillary quartz glass tube, which has high hardness and excellent thermal conductivity, but is fragile. After push plate 1 401 and push plate 2 402 completely squeeze the glue into the connecting tube 103, in order to prevent the glue from flowing out of the connecting tube 103 when the glue solidifies, the positions of push plate 1 401 and push plate 2 402 need to be fixed during the glue solidification process.

[0066] In order to solve the above problem, the present invention installs a cable tie 501 on the push plate 1 401 and opens a limit slot 503 on the push plate 2 402. When the push plates 1 401 and 2 402 are pushed, the cable tie 501 on the push plate 1 401 will be inserted into the limit slot 503 on the push plate 2 402. At this time, the teeth 506 on the cable tie 501 move the top plate 504. When the push plates 1 401 and 2 402 stop pushing, the glue is completely filled to the connection. Through the connecting pipe 103, the top plate 504 will abut against the teeth 506 on the cable tie 501, thereby fixing the position of the push plate 1 401 and the push plate 2 402, preventing the glue from overflowing from the connecting pipe 103, ensuring that the connecting ends of the input component 2 and the receiving component 3 are completely immersed in the glue, and improving the connection performance of the input component 2 and the receiving component 3. At the same time, after the cable tie 501 is connected to the limiting slot 503, the cable tie 501 can provide protection for the fixed component 1 to prevent the fixed component 1 from being bumped and broken.

[0067] After the glue solidifies, the fixing component 1 can be packaged in a packaging box to further provide protection for the fixing component 1, the input component 2 and the receiving component 3.

[0068] The cable tie 501 is provided with teeth 506 , the limiting slot 503 is provided with a fixing platform 505 , and the fixing platform 505 is provided with a top plate 504 . When the cable tie 501 is inserted into the limiting slot 503 , the top plate 504 abuts against the teeth 506 .

[0069] See also Figure 2-Figure 12 As shown, the present invention is a laser coupling method, which is applied to the laser coupling device as described in the above embodiment, and the method includes the following steps:

[0070] Step S1: Melt and expand the input component 2 and the receiving component 3, and form an outer tapered input connector 201 and an inner tapered receiving sleeve 303 by etching;

[0071] Step S2: Insert the plurality of input optical fibers 202 into the sockets 408 on the second pressing plate 406 respectively, then integrate the input connector 201 and insert it into the input end limiting ring 203. At this time, the scraper 407 inside the socket 408 fits the input optical fiber 202;

[0072] Step S3: The receiving end limiting ring 306 is placed on the mounting platform 305 on the cladding 301. Then, the input assembly 2 and the receiving assembly 3 are inserted from the input tube 101 and the receiving tube 102 respectively. During this process, the input connector 201 and the receiving sleeve 303 are connected in the connecting tube 103. After the input connector 201 and the receiving sleeve 303 are connected, the input end limiting ring 203 and the receiving end limiting ring 306 are respectively clamped at both ends of the connecting tube 103.

[0073] Step S4: Inject glue from the input tube 101 and the receiving tube 102 respectively, so that the glue at both ends can flow through the input optical fiber 202 and the cladding 301 to the input connector 201 and the receiving sleeve 303 respectively. Then, push the push plate 1 401 and the push plate 2 402 relative to each other, so that the push plate 1 401 drives the pressure plate 2 406 to enter the input tube 101 through the connecting rod 2 405, and at the same time, the push plate 2 402 drives the pressure plate 1 403 to enter the input tube 101 through the connecting rod 1 404. Into the receiving tube 102, as the push plate 1 401 and the push plate 2 402 move, the pressure plate 2 406 and the pressure plate 1 403 respectively push the glue liquid into the inside of the connecting tube 103. During this process, the pressure plate 2 406 pushes the glue liquid through the internal gap of the input end limit ring 203 to enter the connecting tube 103, and the pressure plate 1 403 pushes the glue liquid through the liquid inlet 307 to enter the connecting tube 103, so that the glue liquid inside the input tube 101 and the receiving tube 102 converges into the connecting tube 103.

[0074] like Figure 2-Figure 7 As shown, as a preferred embodiment of the present invention, step S4 specifically includes the following steps:

[0075] Step S41: As the push plate 1 401 is pushed, the heat-conducting micro-tube 6 on the second pressing plate 406 passes through the input-end limiting ring 203 and enters the connecting tube 103 along with the glue. During this process, the conductive micro-hairs 7 on the heat-conducting micro-tube 6 guide the glue entering the connecting tube 103. As the second pressing plate 406 moves, the heat-conducting micro-tube 6 is inserted into the socket 308 on the receiving-end limiting ring 306.

[0076] Step S42: During the process of pushing the push plate 1 401 , the cable tie 501 on the push plate 1 401 is inserted into the limiting slot 503 on the push plate 2 402 . At this time, the teeth 506 on the cable tie 501 move the top plate 504 . When the push plates 1 401 and 2 402 stop pushing, that is, the glue is completely filled into the connecting tube 103 , the top plate 504 will abut against the teeth 506 on the cable tie 501 , thereby fixing the positions of the push plates 1 401 and 2 402 .

[0077] The implementation principle of the present invention is as follows: when in use, the input component 2 and the receiving component 3 are melted and expanded, and an outer tapered input connector 201 and an inner tapered receiving sleeve 303 are formed by etching.

[0078] like Figure 8 As shown, multiple input optical fibers 202 are respectively inserted into the sockets 408 on the second pressing plate 406, and then the input connector 201 is integrated and inserted into the input end limiting ring 203, as shown in FIG. Figure 7 As shown, at this time, the scraper 407 inside the socket 408 is attached to the input optical fiber 202, and the scraper 407 can effectively prevent the glue from overflowing from the second pressing plate 406;

[0079] The receiving end limiting ring 306 is placed on the mounting platform 305 on the cladding 301, as shown in FIG. Figure 5 As shown, the input assembly 2 and the receiving assembly 3 are then inserted into the input pipe 101 and the receiving pipe 102 respectively. During this process, the input connector 201 and the receiving sleeve 303 are connected in the connecting pipe 103. After the input connector 201 and the receiving sleeve 303 are connected, the input end limiting ring 203 and the receiving end limiting ring 306 are respectively stuck at both ends of the connecting pipe 103, as shown in FIG. Figure 2 As shown, the input end limiting ring 203 and the receiving end limiting ring 306 can limit the input connector 201 and the receiving sleeve 303, preventing the pressure component 4 from driving the input component 2 and the receiving component 3 to move twice during the glue pressing process, thereby preventing the connection between the input connector 201 and the receiving sleeve 303 from being squeezed and damaged;

[0080] The glue is injected from the input tube 101 and the receiving tube 102 respectively, so that the glue at both ends can flow through the input optical fiber 202 and the cladding 301 to the input connector 201 and the receiving sleeve 303 respectively. Then, by relatively pushing the push plate 1 401 and the push plate 2 402, the push plate 1 401 drives the pressure plate 2 406 to enter the input tube 101 through the connecting rod 2 405, and at the same time, the push plate 2 402 drives the pressure plate 1 403 to enter the receiving tube 102 through the connecting rod 1 404. As the push plates 1 401 and the push plates 2 402 move, the pressure plates 2 406 and the pressure plates 1 403 respectively push the glue to be squeezed into the inside of the connecting tube 103. In this process, as shown in FIG. Figure 9 As shown, the second pressing plate 406 pushes the glue liquid into the connecting pipe 103 through the internal gap of the input end limiting ring 203, as shown in FIG. Figure 5 As shown, the pressing plate 1 403 pushes the glue liquid into the connecting tube 103 through the liquid inlet 307, so that the glue liquid inside the input tube 101 and the receiving tube 102 is merged into the connecting tube 103;

[0081] In the process of pushing the push plate 1 401, the heat conducting micro-tube 6 on the pressing plate 2 406 will pass through the input end limit ring 203 and enter the connecting tube 103 together with the glue. Figure 13 The conductive micro-hairs 7 on the heat-conducting micro-tube 6 guide the glue entering the connecting tube 103, avoiding the situation where the glue is blocked at the end of the connecting tube 103 due to poor glue flow and the narrow gap of the connecting tube 103, thereby improving the fluidity of the glue; as the second pressing plate 406 moves, the heat-conducting micro-tube 6 is inserted into the socket 308 on the limiting ring 306 of the receiving end. The heat-conducting micro-tube 6 not only improves the glue sealing strength at the connection between the input component 2 and the receiving component 3, but also improves the heat dissipation efficiency of the input component 2 and the receiving component 3, reducing heat accumulation at the connection between the input connector 201 and the receiving sleeve 303;

[0082] In the process of pushing the push plate 1 401, the cable tie 501 on the push plate 1 401 will be inserted into the limiting slot 503 on the push plate 2 402. At this time, the teeth 506 on the cable tie 501 will move the top plate 504. When the push plates 1 401 and 2 402 stop pushing, that is, the glue is completely filled into the connecting tube 103, the top plate 504 will abut the teeth 506 on the cable tie 501, thereby fixing the position of the push plates 1 401 and 2 402 to prevent the glue from overflowing from the connecting tube 103, ensuring that the connecting ends of the input component 2 and the receiving component 3 are completely immersed in the glue, thereby improving the connection performance of the input component 2 and the receiving component 3. At the same time, after the cable tie 501 is connected to the limiting slot 503, the cable tie 501 can provide protection for the fixing component 1 to prevent the fixing component 1 from being bumped and broken.

[0083] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and modifications fall within the scope of the invention as claimed.

Claims

1. A laser coupling device, characterized in that: The invention comprises a fixed component (1) and an input component (2) and a receiving component (3) therein, wherein the input component (2) comprises a plurality of input optical fibers (202), and the plurality of input optical fibers (202) form an input connector (201) at one end close to the receiving component (3); the receiving component (3) comprises a receiving fiber core (302) and a cladding (301) outside the receiving fiber core; a receiving sleeve (303) is installed at one end of the cladding (301) close to the input component (2); the receiving fiber core (302) is connected to a receiving contact (304) inside the receiving sleeve (303), and the input connector (201) is butted against the receiving contact (304) inside the receiving sleeve (303); The fixed component (1) is internally installed with a pressure liquid component (4), and the pressure liquid component (4) includes a push plate 1 (401) and a push plate 2 (402), and the push plate 1 (401) and the push plate 2 (402) are respectively connected to the pressure plate 2 (406) and the pressure plate 1 (403), and each input optical fiber (202) is inserted into the socket (408) on the pressure plate 2 (406), and the socket (408) fits the input optical fiber (202), and the cladding (301) is inserted into the pressure plate 1 (403), and the pressure plate 1 (403) fits the cladding (301); The glue liquid is injected into the two side openings of the fixed component (1) respectively, and then the push plate 1 (401) and the push plate 2 (402) are pushed against each other and drive the pressure plate 2 (406) and the pressure plate 1 (403) to squeeze the glue liquid toward the connection end of the input component (2) and the receiving component (3).

2. A laser coupling device according to claim 1, characterized in that: The fixed component (1) is arranged to close from both ends toward the middle, and comprises an input tube (101) and a receiving tube (102) and a connecting tube (103) located therebetween; a plurality of input optical fibers (202) are installed inside the input tube (101); a cladding (301) and a receiving fiber core (302) are installed inside the receiving tube (102); and the input component (2) and the receiving component (3) are plugged in inside the connecting tube (103).

3. The laser coupling device according to claim 1, wherein: The receiving component (3) includes a receiving end limiting ring (306), and the input component (2) includes an input end limiting ring (203). The input end limiting ring (203) is sleeved on the input optical fiber (202). The cladding (301) is fixedly connected to the mounting platform (305). The receiving end limiting ring (306) is sleeved on the mounting platform (305). The receiving end limiting ring (306) is provided with a liquid inlet (307) and a jack (308).

4. The laser coupling device according to claim 1, wherein: The push plate 1 (401) is connected to the pressure plate 2 (406) via the connecting rod 2 (405), and the push plate 2 (402) is connected to the pressure plate 1 (403) via the connecting rod 1 (404). A heat conducting micro tube (6) is installed on the pressure plate 2 (406), and the heat conducting micro tube (6) passes through the input end limiting ring (203) and is inserted into the jack (308).

5. The laser coupling device according to claim 4, characterized in that: The end of the heat-conducting micro-tube (6) away from the push plate (401) is equipped with a conductive micro-hair (7), and the socket (408) and the pressure plate (403) are both equipped with a scraper (407).

6. The laser coupling device according to claim 2, characterized in that: A position limiting protection component (5) is installed on the pressure liquid component (4), and the position limiting protection component (5) includes a tie (501) installed on the push plate 1 (401) and a position limiting slot (503) opened on the push plate 2 (402). A fixing ring (502) is installed outside the input tube (101) and the receiving tube (102), and the tie (501) passes through the fixing ring (502) and engages with the position limiting slot (503).

7. The laser coupling device according to claim 6, characterized in that: The cable tie (501) is provided with teeth (506), a fixing platform (505) is provided inside the limiting slot (503), and a top plate (504) is provided on the fixing platform (505). When the cable tie (501) is inserted into the limiting slot (503), the top plate (504) abuts against the teeth (506).

8. A laser coupling method, characterized in that: The method is applied to the laser coupling device according to any one of claims 1 to 7, and the method comprises the following steps: Step S1: Melting and expanding the input component (2) and the receiving component (3), and forming an outer tapered input connector (201) and an inner tapered receiving sleeve (303) by etching; Step S2: inserting a plurality of input optical fibers (202) into the sockets (408) on the second pressing plate (406) respectively, and then integrating the input connector (201) and inserting it into the input end limiting ring (203), at which time the scraper (407) inside the socket (408) fits the input optical fiber (202); Step S3: The receiving end limiting ring (306) is placed on the mounting platform (305) on the cladding (301), and then the input component (2) and the receiving component (3) are respectively inserted from the input tube (101) and the receiving tube (102). During this process, the input connector (201) and the receiving sleeve (303) are connected in the connecting tube (103). After the input connector (201) and the receiving sleeve (303) are connected, the input end limiting ring (203) and the receiving end limiting ring (306) are respectively clamped at both ends of the connecting tube (103); Step S4: Inject glue from the input tube (101) and the receiving tube (102) respectively, so that the glue at both ends can flow through the input optical fiber (202) and the cladding (301) toward the input connector (201) and the receiving sleeve (303), and then push the push plate 1 (401) and the push plate 2 (402) relative to each other, so that the push plate 1 (401) drives the pressure plate 2 (406) to enter the input tube (101) through the connecting rod 2 (405), and at the same time, the push plate 2 (402) drives the pressure plate 1 (403) to enter through the connecting rod 1 (404). The glue enters the receiving tube (102), and as the push plate 1 (401) and the push plate 2 (402) move, the pressure plate 2 (406) and the pressure plate 1 (403) respectively push the glue liquid into the inside of the connecting tube (103). During this process, the pressure plate 2 (406) pushes the glue liquid into the connecting tube (103) through the internal gap of the input end limit ring (203), and the pressure plate 1 (403) pushes the glue liquid into the connecting tube (103) through the liquid inlet (307), so that the glue liquid inside the input tube (101) and the receiving tube (102) is merged into the connecting tube (103).

9. The laser coupling method according to claim 8, characterized in that: The step S4 specifically includes the following steps: Step S41: During the process of pushing the push plate 1 (401), the heat-conducting micro-tube (6) on the pressing plate 2 (406) will penetrate the input end limiting ring (203) and enter the connecting tube (103) together with the glue. During this process, the conductive micro-hairs (7) on the heat-conducting micro-tube (6) will guide the glue entering the connecting tube (103). As the pressing plate 2 (406) moves, the heat-conducting micro-tube (6) is inserted into the socket (308) on the receiving end limiting ring (306); Step S42: During the process of pushing the push plate 1 (401), the cable tie (501) on the push plate 1 (401) is inserted into the limiting slot (503) on the push plate 2 (402). At this time, the teeth (506) on the cable tie (501) move the top plate (504). When the push plate 1 (401) and the push plate 2 (402) stop pushing, that is, the glue is completely filled into the connecting tube (103), the top plate (504) will abut against the teeth (506) on the cable tie (501), thereby fixing the position of the push plate 1 (401) and the push plate 2 (402).

Images