Laser coupling device and method

Abstract

The invention belongs to the technical field of laser synthesis, and particularly relates to a laser coupling device and method.The laser coupling device comprises a fixing assembly, an input assembly and a receiving assembly, the input assembly and the receiving assembly are arranged in the fixing assembly, the input assembly comprises a plurality of input optical fibers and input connectors, the receiving assembly comprises a receiving fiber core and a receiving sleeve, and the receiving fiber core is connected with a receiving contact in the receiving sleeve; the liquid pressing assembly is installed in the fixing assembly and comprises a first push plate and a second push plate, and the first push plate and the second push plate are connected with the second pressing plate and the first pressing plate respectively. According to the invention, a glue solution is injected from an input pipe and a receiving pipe, so that the glue solution at two ends can flow towards an input joint and a receiving sleeve through an input optical fiber and a cladding, and then a push plate I and a push plate II are relatively pushed, so that the push plate I and the push plate II push the glue solution to extrude the interior of a connecting pipe through a pressing plate II and a pressing plate I; and the glue solution is ensured to completely permeate into the gaps among the light paths.

Description

Technical Field

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

[0002] The laser coupling device is a laser that cleverly combines the laser beam generated by the laser diode with the optical fiber, and is widely used in various fields of modern science and technology. The laser coupling device is mainly composed of key components such as the laser diode, the optical fiber coupler, the cooling device and the control circuit. The laser diode is responsible for generating a high-power laser beam; the optical fiber coupler ensures that the beam can accurately enter the optical fiber for transmission; the cooling device is used to maintain the temperature of the laser diode to ensure its performance and life; the control circuit is responsible for the regulation and stable operation of the overall system.

[0003] The 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 and deforming the fiber core to improve the laser coupling efficiency. For example, the laser fiber coupler and manufacturing method disclosed in publication number CN113866892B mainly improves the beam quality by performing multi-path beam shaping through laser physical beam shrinking and double-reflection optical fiber microstructure. 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 solve the technical problems in the prior art in view of the shortcomings of the prior art.

[0005] The object of the present invention can be achieved by the following technical scheme: a laser coupling device, comprising a fixing component and an input component and a receiving component inside thereof, the input component comprising a plurality of input optical fibers, the plurality of input optical fibers forming an input connector at one end close to the receiving component, the receiving component comprising a receiving fiber core and a cladding outside thereof, a receiving sleeve being installed at one end of the cladding close to the input component, the receiving fiber core being connected to a receiving contact inside the receiving sleeve, and the input connector being butted against the 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, and the push plate 1 and the push plate 2 are respectively connected to the pressing plate 2 and the pressing plate 1, each input optical fiber is inserted into the socket on the pressing plate 2, and the socket fits the input optical fiber, and the cladding is inserted into the pressing plate 1, and the pressing plate 1 fits the cladding; 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.

[0006] As a further optimization or improvement of the present solution, the fixed component is arranged to close from both ends to the middle, and the fixed component includes an input tube and a receiving tube and a connecting tube located therebetween, 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.

[0007] As a further optimization or improvement of the present 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.

[0008] As a further optimization or improvement of this solution, the push plate one is connected to the pressure plate two through the connecting rod two, and the push plate two is connected to the pressure plate one through the connecting rod one. A heat-conducting microtube is installed on the pressure plate two, and the heat-conducting microtube passes through the input end limit ring and is inserted into the socket.

[0009] As a further optimization or improvement of the present 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.

[0010] As a further optimization or improvement of this solution, a limit protection component is installed on the hydraulic component, and the limit protection component includes a cable tie installed on push plate one and a limit slot opened on push plate two. Fixed rings are installed on the outside of the input tube and the receiving tube, and the cable tie passes through the fixed ring and engages with the limit slot.

[0011] As a further optimization or improvement of the present 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.

[0012] A laser coupling method, the method is applied to the laser coupling device as described above, the method comprising the following steps: 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; Step S2: insert multiple input optical fibers into the sockets on the second pressing plate respectively, and then integrate the input connectors and insert them into the input end limit ring, at which time the scraper inside the socket fits the input optical fiber; Step S3: The receiving end limiting ring is set on the mounting platform on the cladding, 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 clamped at both ends of the connecting pipe; Step S4: Inject the glue liquid from the input tube and the receiving tube respectively, so that the glue liquid 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 relatively, 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 push the glue liquid to be squeezed into the inside of the connecting tube respectively. In this process, the pressure plate 2 pushes the glue liquid to enter the connecting tube through the internal gap of the input end limit ring, and the pressure plate 1 pushes the glue liquid to enter the connecting tube through the liquid inlet, so that the glue liquid inside the input tube and the receiving tube merges into the connecting tube.

[0013] As a further optimization or improvement of this solution, step S4 specifically includes the following steps: Step S41: In the process of pushing the push plate 1, the heat-conducting micro-tube on the pressing plate 2 will penetrate the input end limiting ring and enter the connecting tube together with the glue. In this process, the conductive micro-hairs on the heat-conducting micro-tube will guide the glue entering the connecting tube. As the pressing plate 2 moves, the heat-conducting micro-tube is inserted into the jack on the receiving end limiting ring; 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 against the teeth on the cable tie, thereby fixing the position of push plate one and push plate two.

[0014] Beneficial effects of the present invention: (1) The present invention injects glue from 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, 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 push the glue into the inside of the connecting tube through the pressure plate 2 and the pressure plate 1 respectively; Specifically, in the process of pushing the push plate 1, the heat-conducting micro-tube on the pressure plate 2 will penetrate 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 gap of the connecting tube, thereby improving the fluidity of the glue; as the pressure plate 2 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, and reduces the heat accumulation at the connection between the input connector and the receiving sleeve; 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 against the teeth on the cable tie, thereby fixing the position of push plate one and push plate two to prevent 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, thereby 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.

[0015] (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; Specifically, the receiving end limiting ring is put 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 liquid pressure component, resulting in extrusion damage at the connection between the input connector and the receiving sleeve. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention will be further described below in conjunction with the accompanying drawings.

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0018] Figure 2 It is a cross-sectional view of the overall structure of the present invention.

[0019] Figure 3 for Figure 2 A magnified view of the structure of part A.

[0020] Figure 4 Schematic diagram of the internal structure of the receiving component.

[0021] Figure 5 This is a schematic diagram of the overall structure of the receiving component.

[0022] Figure 6 Schematic diagram of the limiting ring structure at the receiving end.

[0023] Figure 7 This is a schematic diagram of the installation of the input component and the second pressure plate.

[0024] Figure 8This is a schematic diagram of the connection between the input component and the hydraulic component.

[0025] Fig. 9 Schematic diagram of the input limit ring structure.

[0026] Fig.10 It is a schematic diagram of the structure of the second pressure plate.

[0027] Fig.11 For along Fig.10 Dashed line section view.

[0028] Fig.12 Schematic diagram of the scraper structure.

[0029] Fig.13 Schematic diagram of the conductive microhair structure.

[0030] 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 one; 402. Push plate two; 403. Press plate one; 404. Connecting rod one; 405. Connecting rod two; 406. Press plate two; 407. Scraper; 408. Socket; 5. Limit protection assembly; 501. Cable tie; 502. Fixing ring; 503. Limiting slot; 504. Top plate; 505. Fixing table; 506. Teeth; 6. Heat conduction micropipe; 7. Conductive microhair. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.

[0032] See also Figure 1-Figure 7 A laser coupling device, characterized in that: it comprises a fixing component 1 and an input component 2 and a receiving component 3 inside thereof, the input component 2 comprises a plurality of input optical fibers 202, an end of the plurality of input optical fibers 202 close to the receiving component 3 forms an input connector 201, the receiving component 3 comprises a receiving fiber core 302 and a cladding 301 outside thereof, a receiving sleeve 303 is installed at an 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 fixing assembly 1 is internally installed with a pressure liquid assembly 4, which includes a push plate 1 401 and a push plate 2 402, which are respectively connected to a pressure plate 2 406 and a pressure plate 1 403, each input optical fiber 202 is inserted into a 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 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 liquid toward the connection end of the input component 2 and the receiving component 3.

[0033] Specifically, the fixed component 1 is set to close from both ends to the middle, and 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.

[0034] 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-conical, and then an outer conical input connector 201 and an inner conical receiving sleeve 303 are formed by etching, and the input component 2 and the receiving component 3 are respectively inserted and connected from the input tube 101 and the receiving tube 102. The processing technology of melt expansion is a prior art, and the present invention will not be described in detail, 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 bonded to the cladding 301 and the input optical fiber 202. The method of using the present invention is as follows; The input component 2 and the receiving component 3 are melt-expanded, and an outer tapered input connector 201 and an inner tapered receiving sleeve 303 are formed by etching.

[0035] 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 limit 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; The receiving end limiting ring 306 is placed on the mounting platform 305 on the cladding 301, such as Figure 5As shown, the input assembly 2 and the receiving assembly 3 are then inserted from 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 stop ring 203 and the receiving end stop ring 306 are respectively clamped 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, so as to prevent the input component 2 and the receiving component 3 from moving twice during the glue pressing process of the liquid pressure component 4, resulting in squeezing and damage at the connection between the input connector 201 and the receiving sleeve 303.

[0036] The glue liquid is injected from the input tube 101 and the receiving tube 102 respectively, so that the glue liquid at both ends can flow toward the input connector 201 and the receiving sleeve 303 through the input optical fiber 202 and the cladding 301 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 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 liquid to be squeezed into the connecting tube 103. In this process, as shown in FIG. Fig. 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 flows into the connecting tube 103 .

[0037] In 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 limit ring 203 and enter the connecting tube 103 together with the glue. Fig.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 second pressing plate 406 moves, the heat-conducting micro-tube 6 is inserted into the jack 308 on the receiving end limit ring 306, and 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, and reduces the heat accumulation at the connection between the input connector 201 and the receiving sleeve 303; When the push plate 1 401 is pushed, 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 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 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.

[0038] 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, and the receiving end limiting ring 306 is provided with a liquid inlet 307 and a jack 308.

[0039] 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 pushing plate 1 401 and the pushing plate 2 402 are pushed, the scraper 407 is used to prevent the glue liquid from overflowing from the pressing plate 1 403 and the pressing plate 2 406. 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, and the secondary relative movement will cause another relative movement after the input component 2 and the receiving component 3 are connected, which may easily lead to extrusion damage to the input connector 201 and the receiving sleeve 303.

[0040] In order to avoid the above problems, the present invention sets the receiving end limit ring 306 on the mounting platform 305 on the cladding 301, such as Figure 5As shown, the input assembly 2 and the receiving assembly 3 are then inserted from 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 stop ring 203 and the receiving end stop ring 306 are respectively clamped 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.

[0041] See also Figure 7-Figure 13 The push plate 1 401 is connected to the pressing plate 2 406 through the connecting rod 2 405, and the push plate 2 402 is connected to the pressing plate 1 403 through the connecting rod 1 404. The pressing plate 2 406 is installed with a heat conducting micro-tube 6, which passes through the input end limiting ring 203 and is inserted into the jack 308.

[0042] Specifically, the end of the heat-conducting micro-tube 6 away from the push plate 401 is installed with the conductive micro-hair 7, and the socket 408 and the pressure plate 403 are both installed with a scraper 407 inside.

[0043] 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.

[0044] 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 penetrate the input end limit ring 203 and enter the connecting tube 103 together with the glue. In this process, see Fig.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 pressure plate 406 moves, the heat-conducting micro-tube 6 is inserted into the socket 308 on the receiving end limit ring 306, and 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 the heat accumulation at the connection between the input connector 201 and the receiving sleeve 303.

[0045] See also Figure 1-Figure 3 A limit protection component 5 is installed on the pressure liquid component 4, and the limit protection component 5 includes a 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 outer side of the input tube 101 and the receiving tube 102, and the tie 501 passes through the fixing ring 502 and engages with the limit slot 503.

[0046] Specifically, 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 .

[0047] 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. When 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.

[0048] 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 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 402 stop pushing, the glue is completely filled to the connection. Through 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, preventing 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.

[0049] When 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.

[0050] 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 .

[0051] 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 comprises the following steps: 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; Step S2: insert multiple input optical fibers 202 into the sockets 408 on the second pressing plate 406 respectively, and then integrate the input connector 201 and insert it into the input end limit ring 203, at which time the scraper 407 inside the socket 408 fits the input optical fiber 202; Step S3: The receiving end stop ring 306 is sleeved on the mounting platform 305 on the cladding 301, and then the input assembly 2 and the receiving assembly 3 are respectively inserted from the input pipe 101 and the receiving pipe 102. 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 stop ring 203 and the receiving end stop ring 306 are respectively clamped at both ends of the connecting pipe 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 to the input connector 201 and the receiving sleeve 303 respectively, and then push the push plate 1 401 and the push plate 2 402 relatively, 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. 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 connecting tube 103. In 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 merges into the connecting tube 103.

[0052] like Figure 2-Figure 7 As shown, as a preferred embodiment of the present invention, step S4 specifically includes the following steps: Step S41: In 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. In 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 jack 308 on the receiving end limiting ring 306; Step S42: In 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 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 402.

[0053] The implementation principle of the present invention is: 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.

[0054] 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 limit 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; The receiving end limiting ring 306 is placed on the mounting platform 305 on the cladding 301, such as Figure 5 As shown, the input assembly 2 and the receiving assembly 3 are then inserted from 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 stop ring 203 and the receiving end stop ring 306 are respectively clamped 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, so as to prevent the input component 2 and the receiving component 3 from being driven to move twice during the glue pressing process of the liquid pressing component 4, thereby causing the input connector 201 and the receiving sleeve 303 to be squeezed and damaged; The glue liquid is injected from the input tube 101 and the receiving tube 102 respectively, so that the glue liquid at both ends can flow toward the input connector 201 and the receiving sleeve 303 through the input optical fiber 202 and the cladding 301 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 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 liquid to be squeezed into the connecting tube 103. In this process, as shown in FIG. Fig. 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 flows into the connecting tube 103; In 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 limit ring 203 and enter the connecting tube 103 together with the glue. Fig.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 second pressing plate 406 moves, the heat-conducting micro-tube 6 is inserted into the jack 308 on the receiving end limit ring 306, and 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, and reduces the heat accumulation at the connection between the input connector 201 and the receiving sleeve 303; When the push plate 1 401 is pushed, 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 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 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.

[0055] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, and these changes and improvements all fall within the scope of the present invention to be protected.

Claims

1. A laser coupling device, characterized in that: The invention comprises a fixing 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 an input connector (201) is formed at one end of the plurality of input optical fibers (202) 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 butt-jointed with the receiving contact (304) inside the receiving sleeve (303); The fixed component (1) is internally installed with a pressure liquid component (4), the pressure liquid component (4) comprising a push plate 1 (401) and a push plate 2 (402), the push plate 1 (401) and the push plate 2 (402) are respectively connected to a pressure plate 2 (406) and a pressure plate 1 (403), each input optical fiber (202) is inserted into a 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); 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 to the middle, and comprises an input tube (101) and a receiving tube (102) and a connecting tube (103) located between the two. 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 inside the connecting tube (103).

3. A laser coupling device according to claim 1, characterized in that: The receiving component (3) comprises a receiving end limiting ring (306), and the input component (2) comprises 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), and the receiving end limiting ring (306) is provided with a liquid inlet (307) and a socket (308).

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

5. A 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. A laser coupling device according to claim 2, characterized in that: A limit protection component (5) is installed on the hydraulic pressure component (4), and the limit protection component (5) comprises a 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 outside the input tube (101) and the receiving tube (102), and the tie (501) passes through the fixing ring (502) and is engaged with the limit slot (503).

7. A laser coupling device according to claim 6, characterized in that: The cable tie (501) is provided with teeth (506), 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).

8. A laser coupling method, characterized in that: The method is applied to the laser coupling device as described in any one of claims 1 to 7 above, and the method comprises the following steps: Step S1: melting and expanding the input component (2) and the receiving component (3), and forming an externally tapered input connector (201) and an internally 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 stop ring (306) is sleeved 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 stop ring (203) and the receiving end stop 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) respectively, 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). 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 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) merges into the connecting tube (103).

9. A laser coupling method according to claim 8, characterized in that: The step S4 specifically comprises the following steps: Step S41: in 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. In 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) push 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).

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