CN220323606U

CN220323606U - Optical fiber fixing tool

Info

Publication number: CN220323606U
Application number: CN202321912422.7U
Authority: CN
Inventors: 王子威; 胡慧璇; 闫大鹏
Original assignee: Wuhan Raycus Fiber Laser Technologies Co Ltd
Current assignee: Wuhan Raycus Fiber Laser Technologies Co Ltd
Priority date: 2023-07-19
Filing date: 2023-07-19
Publication date: 2024-01-09
Anticipated expiration: 2033-07-19

Abstract

The application discloses optical fiber fixing tool is used for fixing an output optical fiber, the output optical fiber comprises an optical fiber body and a metal shell, one end of the optical fiber body is welded with an end cap, the metal shell is sleeved on the end cap and the optical fiber body, the optical fiber fixing tool comprises a base body, a first mounting groove and a second mounting groove, the base body comprises a first end, a second end and a first side face, and the first end and the second end are oppositely arranged; the first mounting groove is formed in the first side face, extends from the first end to the second end, comprises a first side wall and a second side wall, protrudes out of the first side face, is arranged at opposite intervals, and is used for mounting the metal shell; the second mounting groove is arranged on the first side surface and is used for mounting the optical fiber body. The problem that the existing optical fiber pressing force is uncontrollable and the clamping part of the optical fiber is easy to deform is solved, the laser beam transmission effect of the optical fiber is ensured, and the installation and the disassembly operation of the output optical fiber are convenient.

Description

Optical fiber fixing tool

Technical Field

The application belongs to the technical field of laser testing, and particularly relates to an optical fiber fixing tool.

Background

In the production of the laser industry, aging of the laser directly affects the performance and quality of the product. In laser testing, it is necessary to fix the output fiber of the laser. In the related art, the clamp is used for clamping and fixing the output optical fiber, the clamp is provided with a base and a pressing plate, the pressing plate is used for clamping and fixing the optical fiber with the base, the pressing plate is used for extruding the optical fiber, the optical fiber with smaller pressing force of the pressing plate is easy to move, the optical fiber is easy to crush due to larger pressing force of the pressing plate, and the optical fiber at the clamping position is easy to deform, so that the transmission of a laser beam is affected.

Disclosure of Invention

The embodiment of the application provides an optical fiber fixing tool for solving the problem that the existing optical fiber pressing force is uncontrollable and the optical fiber clamping part is easy to deform.

In a first aspect, an embodiment of the present application provides an optical fiber fixing tool for fixing an output optical fiber, the output optical fiber includes an optical fiber body and a metal housing, an end cap is welded at one end of the optical fiber body, the metal housing is sleeved on the end cap and the optical fiber body, including:

a substrate comprising a first end, a second end, and a first side, the first end being disposed opposite the second end;

the first mounting groove is formed in the first side face and extends from the first end to the second end, the first mounting groove comprises a first side wall and a second side wall, the first side wall and the second side wall protrude out of the first side face, the first side wall and the second side wall are oppositely arranged at intervals, and the first mounting groove is used for mounting the metal shell;

the second mounting groove is formed in the first side face and used for mounting the optical fiber body.

Optionally, the first mounting groove further includes a third sidewall disposed at the first end and extending in a direction away from the second end.

Optionally, the substrate, the first sidewall, the second sidewall and the third sidewall are an integral structure prepared from a metal material.

Optionally, the wall thickness of the ends of the first side wall and the second side wall facing away from the first side surface is smaller than the wall thickness of the ends of the first side wall and the second side wall near the first side surface.

Optionally, the cross section is taken along the length direction perpendicular to the first mounting groove, and the cross section of the first mounting groove is U-shaped.

Optionally, the first mounting groove includes:

a first subslot adjacent the first end;

the second subslot, first subslot with the interval of second subslot sets up, first subslot with between the second subslot the first side of base member is equipped with the sunk area.

Optionally, the cross section is taken along the length direction perpendicular to the first mounting groove, and the cross section of the second mounting groove is V-shaped.

Optionally, the method further comprises:

the baffle is arranged on the first side face and close to the second end, and is provided with a groove for the output optical fiber to extend out.

Optionally, the substrate is provided with a mounting hole.

Optionally, the substrate is provided with a heat dissipation channel and a liquid cooling medium outlet, and the liquid cooling medium outlet is communicated with the heat dissipation channel.

The embodiment of the application provides a fixed frock of optic fibre, through set up first mounting groove and second mounting groove on the base member and install output optical fiber's metal casing and optic fibre body part, first mounting groove has protrusion in the first lateral wall of base member and second lateral wall, first lateral wall and second lateral wall block metal casing, avoid metal casing to roll off from first mounting groove, the size and the metal casing adaptation of first mounting groove, metal casing installation is firm, metal casing protects optic fibre body, current optical fiber clamping force uncontrollable has been solved, the flexible problem in optic fibre clamping position guarantees the laser beam transmission effect of optic fibre, the convenient output optic fibre installation and dismantlement operation.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings that are required to be used in the description of the embodiments will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained from these drawings without inventive effort to a person skilled in the art.

For a more complete understanding of the present application and the advantages thereof, reference is now made to the following descriptions taken in conjunction with the accompanying drawings. Wherein like reference numerals refer to like parts throughout the following description.

Fig. 1 is a schematic structural diagram of a testing device according to an embodiment of the present application.

Fig. 2 is a schematic structural diagram of an optical fiber fixing tool according to an embodiment of the present application.

Fig. 3 is a schematic structural diagram of an output optical fiber according to an embodiment of the present application.

Fig. 4 is a top view of a metal housing of an output optical fiber according to an embodiment of the present application.

Fig. 5 is a cross-sectional view A-A of fig. 4.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It will be apparent that the described embodiments are only some, but not all, of the embodiments of the present application. All other embodiments, which can be made by those skilled in the art based on the embodiments herein without making any inventive effort, are intended to be within the scope of the present application.

The embodiment of the application provides an optical fiber fixing tool for solving the problem that the existing optical fiber pressing force is uncontrollable and the optical fiber clamping part is easy to deform. The following description will be given with reference to the accompanying drawings.

Referring to fig. 1 and fig. 2, fig. 1 is a schematic structural diagram of a testing device provided in an embodiment of the present application, and fig. 2 is a schematic structural diagram of an optical fiber fixing tool provided in an embodiment of the present application.

The embodiment of the application provides a fixed frock of optic fibre for fixed fiber laser test is with output optic fibre, can use fiber laser's test system, fiber laser's test system includes power-on device, the fiber laser that awaits measuring, output optic fibre 100, the fixed frock 200 of optic fibre and the integrating sphere that this application embodiment provided, the fiber laser that awaits measuring is connected with output optic fibre 100, output optic fibre 100 is fixed on the fixed frock 200 of optic fibre, output optic fibre 100 is relative with the income light end of integrating sphere, the laser beam that awaits measuring fiber laser produced gets into the integrating sphere through output optic fibre 100, detect the power and the spectrum of awaiting measuring fiber laser through the integrating sphere, thereby test the ageing conditions of awaiting measuring fiber laser. The utility model provides a fixed frock of optic fibre is through setting up metal casing and the optic fibre body part of first mounting groove and second mounting groove installation output optic fibre on the base member, first mounting groove has protrusion in the first lateral side's first lateral wall and second lateral wall, first lateral wall and second lateral wall stop metal casing, avoid metal casing to roll off from first mounting groove, the distance between first lateral wall and the second lateral wall slightly is less than the size of metal casing outer wall, the metal casing of the fixed output optic fibre of structural deformation centre gripping of first lateral wall and second lateral wall, metal casing centre gripping is firm, metal casing protection optic fibre body has solved current optic fibre clamping force uncontrollable, the problem of optic fibre clamping part yielding, guarantee the laser beam transmission effect of optic fibre, make things convenient for output optic fibre installation and dismantlement operation.

The optical fiber fixing tool is used for fixing an output optical fiber for testing an optical fiber laser, and for the purpose of more clearly describing the matching relation between the output optical fiber and the optical fiber fixing tool, the output optical fiber and the optical fiber fixing tool are described in detail below with reference to the accompanying drawings.

Referring to fig. 1, fig. 3, fig. 4, and fig. 5, fig. 3 is a schematic structural diagram of an output optical fiber according to an embodiment of the present application. Fig. 4 is a top view of a metal housing of an output optical fiber according to an embodiment of the present application. Fig. 5 is a cross-sectional view A-A of fig. 4.

The output optical fiber for testing the fiber laser comprises an optical fiber body 110, an end cap 120 and a metal shell 130.

The optical fiber body 110 is provided with a fiber core, a cladding and a coating layer, the cladding is sleeved on the fiber core, the coating layer is coated on the cladding, the optical fiber body 110 is provided with an optical input end and an optical output end, the optical input end can be connected with an optical fiber laser to be tested, the fiber core of the optical output end is connected with the welding end cap 120, the optical fiber body 110 is close to the end cap 120 to form an optical fiber stripping opening, and the optical fiber stripping opening is a range within 10 millimeters from the welding point of the optical fiber output end and the end cap.

The end cap 120 is a quartz end cap, the surface of the end cap 120 is coated with an antireflection film, the output end face of the end cap 120 is coated with the antireflection film, return light enters the end cap 120 from the output end face, and light density enters the end cap 120, so that the return light energy continuously transmitted forward is weakened, most of the return light cannot reach the optical fiber body 110, and the harm of the return light to the device is greatly reduced.

The metal housing 130 is sleeved on the end cap 120 and the optical fiber body 110 near the end cap 120, and the metal housing 130 is connected with the optical fiber body 110 and the end cap 120.

The end cap 120 and the optical fiber body 110 are packaged in the metal shell 130 at a section close to the light output end, the end cap 120 is firmly connected with the optical fiber body 110, the exposure of the peeling opening of the optical fiber is avoided, in addition, the metal shell 130 has the advantage of good heat conducting property, the optical fiber body 110 and the end cap 120 are helped to dissipate heat rapidly, and the performance and the reliability of the output optical fiber are improved. The metal shell 130 can be prepared from an aluminum alloy metamaterial, and has a simple structure and low manufacturing cost.

Referring to fig. 4 and 5, the metal housing 130 is provided with a plurality of dispensing holes 131, and the dispensing holes 131 are disposed at intervals along the axial direction of the optical fiber body 110. Glue is applied into the dispensing hole 131, so that the metal shell 130 is glued with the optical fiber body 110 and the end cap 120, the metal shell 130 is convenient to assemble and disassemble with the optical fiber body 110 and the end cap 120, and the metal shell 130 can be reused, thereby reducing the test cost.

Referring to fig. 4 and 5, the plurality of dispensing holes 131 includes a first dispensing hole 1311 and a second dispensing hole 1312, the first dispensing hole 1311 being opposite to the end cap 120, and the second dispensing hole 1312 being opposite to the optical fiber body 110. Glue is injected into the first glue injection hole 1311, so that the metal shell 130 is adhered to the end cap 120, glue is injected into the second glue injection hole 1312, so that the metal shell 130 is adhered to the end cap 120, glue is injected in sections, glue injection operation is facilitated, an area unsuitable for glue entering can be avoided, and the performance of an output optical fiber is guaranteed.

Referring to fig. 5, the metal housing 130 includes a first cavity 135, a second cavity 136 and a third cavity 137 that are sequentially communicated, the first cavity 135 is closer to the end cap 120 than the second cavity 136, the diameter of the second cavity 136 is smaller than the diameters of the first cavity 135 and the third cavity 137, and a second dispensing hole 1312 is formed in the metal housing 130 corresponding to the second cavity 136.

It can be appreciated that the fiber stripping opening is located in the first cavity 135, the diameter of the second cavity 136 is smaller than the diameters of the first cavity 135 and the third cavity 137, the second dispensing hole 1312 is located in the second cavity 136, so that glue is prevented from entering the first cavity 135 and the third cavity 137 on two sides from the second cavity 136, the fiber stripping opening is prevented from being covered by the glue, the light transmission performance of the output fiber is ensured, the aperture of the third cavity 137 is larger, the fiber body 110 is facilitated to penetrate through the metal shell 130, and the assembly operation of the output fiber is facilitated.

Referring to fig. 4, the metal housing 130 includes a first section 132, a second section 133 and a third section 134, which are sequentially connected, the first section 132 is sleeved on the end cap 120, the first section 132, the second section 133 and the third section 134 are all cylindrical, and the outer diameters of the first section 132 and the third section 134 are smaller than the outer diameter of the second section 133.

A protective sleeve may also be provided over the first section 132 of the metal housing 130, with the portion of the end cap 120 extending out of the metal housing 130 being positioned within the protective sleeve. During the output fiber circulation process, the protective sleeve is sleeved on the end cap 120 to protect the end cap 120. The protective sleeve can be a soft rubber sleeve.

Referring to fig. 2, an optical fiber fixing tool 200 provided in an embodiment of the present application includes a base 210, a first mounting groove 220, and a second mounting groove 230.

Referring to fig. 2, the base 210 has a rectangular block structure, and the base 210 includes a first end 211, a second end 212, and a first side 213, the first end 211 being disposed opposite the second end 212. The first mounting groove 220 is formed on the first side surface 213, the first mounting groove 220 extends from the first end 211 to the second end 212, the first mounting groove 220 comprises a first side wall 221 and a second side wall 222, the first side wall 221 and the second side wall 222 are arranged at opposite intervals, the first side wall 221 and the second side wall 222 protrude out of the first side surface, the size of the first mounting groove 220 is matched with the size of the metal shell 130, the gap between the first side wall 221 and the second side wall 222 is slightly smaller than the outer wall size of the metal shell 130, and the output optical fiber 100 is mounted in the first mounting groove 220 from the gap between the first side wall 221 and the second side wall 222. Since the distance between the first sidewall 221 and the second sidewall 222 is slightly smaller than the outer wall diameter of the metal housing 130, the metal housing 130 is restricted from moving in the first mounting groove 220, preventing the metal housing 130 from sliding out of the gap between the first sidewall 221 and the second sidewall 222, and the end cap 120 extends out of the first end 211. The second mounting groove 230 is formed on the first side 213, the second mounting groove 230 is communicated with the first mounting groove 220, and the optical fiber body 110 is mounted in the second mounting groove 230.

Compared with the scheme of clamping the optical fiber by using the clamp in the related art, the optical fiber fixing tool 200 of the embodiment of the application limits the metal shell 130 in the first mounting groove 220 by using the structural deformation force of the first side wall 221 and the second side wall 222, the metal shell 130 is stably mounted, the metal shell 130 is not easy to deform, the optical fiber body is protected, the transmission effect of the output optical fiber 100 is ensured, and the installation and the disassembly operation of the output optical fiber 100 are convenient.

In some embodiments, to enhance the heat dissipation effect of the output optical fiber 100, the base 210 is provided with a heat dissipation channel and a liquid cooling medium inlet and outlet, which communicate with the heat dissipation channel. The liquid cooling medium may be water, and the heat dissipation channel is connected with the refrigerator through the liquid cooling medium inlet and outlet, so that a circulating water cooling matrix 210 is formed in the heat dissipation channel to dissipate heat of the output optical fiber 100, so that the condition that the output optical fiber 100 is burnt out due to heating is avoided, the output optical fiber 100 is protected, and the reliability of the output optical fiber 100 is improved.

In some embodiments, referring to fig. 2, the first mounting groove 220 further includes a third sidewall 223, the third sidewall 223 being disposed on the first end 211 and extending in a direction away from the second end 212. The third side wall 223 is used for supporting the output optical fiber 100 near the position of the end cap 120, and the end cap 120 is suspended outside the substrate 210, so as to prevent the end cap 120 from interfering with other components and protect the end cap 120.

Based on the above embodiment, the base 210, the first sidewall 221, the second sidewall 222, and the third sidewall 223 are an integral structure prepared using a metal material. The optical fiber fixing tool can be molded integrally by adopting die injection or stamping, and the processing technology is simple.

On the basis of the above embodiment, as shown in fig. 2, the wall thickness of the ends of the first and second side walls 221 and 222 facing away from the first side 213 is smaller than the wall thickness of the ends of the first and second side walls 221 and 222 near the first side 213. The thickness of one end of first lateral wall 221 and second lateral wall 222 is less than the thickness of the other end, and in output optic fibre 100 installation, metal casing 130 of output optic fibre 100 struts first lateral wall 221 and second lateral wall 222, and the tip of first lateral wall 221 and second lateral wall 222 is thinner to be out of shape easily, and output optic fibre 100 is got into smoothly, avoids scraping out of shape output optic fibre 100, and after output optic fibre 100 gets into first mounting groove 220, the thicker degree of difficulty of deformation of thickness of first lateral wall 221 and second lateral wall 222 other end is high, prevents output optic fibre 100 because of first lateral wall 221 and second lateral wall 222 deformation roll-off, guarantees output optic fibre 100 installation firm.

In addition to the above-described embodiment, in order to facilitate the installation and removal of the metal housing 130 portion of the output optical fiber 100, the first installation groove 220 has a cross-sectional shape of a "U" shape along a length direction perpendicular to the first installation groove 220.

On the basis of the above embodiment, referring to fig. 2, the first mounting groove 220 includes a first sub groove 224 and a second sub groove 225, the first sub groove 224 being adjacent to the first end 211, and the first sidewall 221 and the second sidewall 222 being located on the first sub groove 224. The first subslot 224 is spaced apart from the second subslot 225, and the first side 213 of the substrate 210 between the first subslot 224 and the second subslot 225 is provided with a recessed region 214. The first sub-slot 224 holds a portion of the metal housing 130 adjacent the end cap 120 and the second sub-slot 225 holds a portion of the metal housing 130 adjacent the other end, with the middle portion of the metal housing 130 being located in the recessed area 214. In the fiber laser testing process, the infrared thermometer can be used for monitoring the temperature of the metal shell 130 from the position of the concave area 214, so that the metal shell 130 is prevented from being burnt, and the testing effect of the fiber laser is ensured.

The first sub-groove 224 has a first groove section and a second groove section, the first groove section is sized to fit the outer diameter of the second section 133 of the metal shell 130, the first sidewall 221 and the second sidewall 222 extend upward from the first groove section to protrude from the first side 213, and the second groove section is sized to fit the outer diameter of the third section 134 of the metal shell 130. The first sidewall 221 and the second sidewall 222 act on the thickest position of the metal shell 130, so that the clamping effect is better and more stable.

In addition to the above-described embodiment, in order to facilitate the installation and removal of the optical fiber body 110 of the output optical fiber 100, the second installation groove 230 has a V-shaped cross section along a direction perpendicular to the length direction of the first installation groove 220. As a modification, the second mounting groove 230 may also have a semicircular cross-sectional shape.

On the basis of the above embodiment, referring to fig. 2, the optical fiber connector further includes a baffle 240, where the baffle 240 is disposed on the first side 213, and the baffle 240 is close to the second end 212, and the baffle 240 has a groove 241, and the groove 241 is used for the output optical fiber 100 to extend out. The groove 241 is V-shaped, which facilitates the entry and exit of the output optical fiber 100, and the baffle 240 now restricts the output optical fiber 100, preventing the output optical fiber 100 from sliding out of the second mounting groove 230, and ensuring that the output optical fiber 100 is located on the same axis.

In some embodiments, the base 210 is provided with mounting holes 215. Is connected with a water cooling plate or a workbench through a mounting hole 215.

In the foregoing embodiments, the descriptions of the embodiments are emphasized, and for parts of one embodiment that are not described in detail, reference may be made to related descriptions of other embodiments.

In the description of the present application, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more features.

The foregoing has described in detail the fiber fixing tool provided in the embodiments of the present application, and specific examples have been applied herein to illustrate the principles and embodiments of the present application, where the foregoing description of the embodiments is only for aiding in understanding the methods and core ideas of the present application; meanwhile, as those skilled in the art will vary in the specific embodiments and application scope according to the ideas of the present application, the contents of the present specification should not be construed as limiting the present application in summary.

Claims

1. An optical fiber fixing tool is used for fixing an output optical fiber, the output optical fiber comprises an optical fiber body and a metal shell, one end of the optical fiber body is welded with an end cap, and the metal shell is sleeved on the end cap and the optical fiber body, and is characterized by comprising:

2. The fiber optic fixture of claim 1, wherein the first mounting slot further comprises a third sidewall disposed at the first end and extending in a direction away from the second end.

3. The fiber fixation tool of claim 2, wherein the base, the first sidewall, the second sidewall, and the third sidewall are integrally formed from a metallic material.

4. The fiber optic fixture of claim 1, wherein a wall thickness of an end of the first and second sidewalls facing away from the first side is less than a wall thickness of an end of the first and second sidewalls adjacent the first side.

5. The optical fiber fixing tool according to claim 1, wherein the first mounting groove is cross-sectional along a direction perpendicular to a length direction of the first mounting groove, and the first mounting groove is U-shaped in cross-section.

6. The fiber optic fixture of claim 1, wherein the first mounting groove comprises:

a first subslot adjacent the first end;

7. The optical fiber fixing tool according to claim 1, wherein the second mounting groove has a cross-sectional shape of a V-shape along a length direction perpendicular to the first mounting groove.

8. The fiber fixation tool of claim 1, further comprising:

9. The optical fiber fixing tool according to claim 1, wherein the base body is provided with a mounting hole.

10. The optical fiber fixing tool according to claim 1, wherein the base body is provided with a heat dissipation channel and a liquid cooling medium outlet, and the liquid cooling medium outlet is communicated with the heat dissipation channel.