A coupling device that is easily adjusted for parallelism
By introducing a CCD photoelectric probe and a six-dimensional adjustment platform into the coupling device, the problem of inflexible adjustment of lens and fiber positions in existing devices is solved, achieving precise alignment and efficient coupling of the lens and fiber, thus improving light quality and operational automation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 北京世维通科技股份有限公司
- Filing Date
- 2025-07-24
- Publication Date
- 2026-07-21
AI Technical Summary
Existing coupling devices that are easy to adjust for parallelism are difficult to flexibly adjust when clamping optical fibers and lenses, which can easily lead to fiber breakage or chip compression, affecting light quality.
A coupling device comprising a first clamping mechanism, a second clamping mechanism, and an installation mechanism is employed. A CCD photoelectric probe and a six-dimensional adjustment platform are used to achieve precise position adjustment of the lens and optical fiber. The relative position of the lens and optical fiber is adjusted by the first adjustment component and the second adjustment component. Combined with real-time monitoring by the CCD photoelectric probe, the coupling effect is optimized.
It enables flexible adjustment of the lens and optical fiber, improves the efficiency and quality of light coupling, avoids fiber breakage and lens damage, and enhances the automation and controllability of the coupling device.
Smart Images
Figure CN224536210U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of parallel coupling equipment technology, and in particular to a coupling device that is easy to adjust for parallelism. Background Technology
[0002] With the continuous development of science and technology, the application of optical technology is becoming increasingly widespread. For example, fiber optic networks use light to transmit network signals; laser printing and engraving are examples; and optical computing is another important application of optics. Among the many applications of optics, laser coupling technology has emerged. It is a technology that uses a laser beam to transmit energy or information to a target object. It achieves efficient transmission of energy, signals, or data by precisely aligning and connecting the laser beam to the target object. The basic principle of laser coupling technology is to utilize the high directionality, high energy density, and focusing ability of lasers to precisely transmit energy or information to the target object. This technology can be applied in multiple fields, including communication, energy transmission, sensors, and medicine.
[0003] In the parallel coupling process of laser coupling technology, the laser emitted by the laser passes through a lens and undergoes collimation, shaping, and transformation before being coupled into the light at the other end. During parallel coupling, the optical fiber and the lens need to be clamped by fixtures, and the position of the optical fiber or the lens needs to be adjusted to improve the light quality. However, existing coupling devices that are easy to adjust for parallelism are difficult to flexibly adjust the position of the optical fiber and the lens while clamping them. Adjusting the position can easily cause problems such as fiber breakage or chip compression. Utility Model Content
[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide an easily adjustable parallel coupling device that can flexibly adjust the position of the clamping rear lens and the optical fiber.
[0005] This utility model provides an easily adjustable parallel coupling device, including a first clamping mechanism for clamping a lens, a second clamping mechanism for clamping an optical fiber, and a mounting mechanism disposed between the first clamping mechanism and the second clamping mechanism. The upper surface of the mounting mechanism is provided with a CCD photoelectric probe.
[0006] The first clamping mechanism includes a first clamp and a first adjustment component for adjusting the position of the first clamp, and the second clamping mechanism includes a second clamp and a second adjustment component for adjusting the position of the second clamp.
[0007] In one of the alternative technical solutions, the mounting mechanism further includes a third adjustment component for adjusting the CCD photoelectric probe, the CCD photoelectric probe being disposed on the third adjustment component.
[0008] In one of the alternative technical solutions, the third adjustment component includes a six-dimensional adjustment platform, and the CCD photoelectric probe is disposed on the upper surface of the six-dimensional adjustment platform.
[0009] In one of the alternative technical solutions, the first adjustment component includes a first six-dimensional adjustment frame and a first mounting base connected to the first six-dimensional adjustment frame, wherein the first clamp is detachably connected to the first mounting base;
[0010] The second adjustment component includes a second six-dimensional adjustment frame and a second mounting base connected to the second six-dimensional platform, wherein the second clamp is detachably connected to the second mounting base.
[0011] In one alternative technical solution, the first adjustment mechanism further includes a mounting bracket for mounting a laser, the mounting bracket being adjustable in relative position to the first mounting base.
[0012] In one of the alternative technical solutions, the lower surface of the first mounting base is provided with a sliding groove, the upper end of the mounting bracket is embedded in the sliding groove, and the laser can rise or fall relative to the mounting bracket, so that the laser can adjust its horizontal and vertical positions relative to the first mounting base.
[0013] In one of the alternative technical solutions, the first clamp is a long, curved tweezer.
[0014] In one of the alternative technical solutions, the first clamp is provided with a plurality of mounting through holes, and a connector passing through one of the mounting through holes is embedded in and connected to the side of the first mounting base.
[0015] In one of the alternative technical solutions, the first clamp is provided with an adjustment through hole, and the adjustment through hole is provided with an adjustment element for adjusting the tightness of the first clamp.
[0016] In one of the alternative technical solutions, the second clamp is provided with an elastic element, the lower end of the second clamp is a clamping end for clamping the optical fiber, and the upper end of the second clamp is an operating end for pressing to release the optical fiber.
[0017] The above technical solution has the following beneficial effects:
[0018] The first and second clamping mechanisms in the easily adjustable parallel coupling device provided by this utility model can adjust the relative position of the lens and the optical fiber by adjusting the first and second adjustment components after clamping the lens and the optical fiber. This facilitates adjusting the relative position of the optical fiber and the lens during parallel coupling, and allows for the detection of coupling power and improvement of light quality. Attached Figure Description
[0019] The disclosure of this utility model will become more readily understood by referring to the accompanying drawings. It should be understood that these drawings are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. In the drawings:
[0020] Figure 1 This is a schematic diagram of the structure of an easily adjustable parallel coupling device provided in an embodiment of the present invention.
[0021] Figure reference numerals:
[0022] 1. First clamping mechanism; 11. First adjusting component; 111. First six-dimensional adjusting frame; 112. First mounting base; 12. First clamp; 121. Mounting through hole; 122. Connector; 123. Adjusting component; 13. Mounting frame;
[0023] 2. Second clamping mechanism; 21. Second adjustment assembly; 211. Second six-dimensional adjustment frame; 212. Second mounting base; 22. Second clamp; 221. Clamping end; 222. Operating end;
[0024] 3. Mounting mechanism; 31. Third adjustment component; 32. CCD photoelectric probe;
[0025] 4. Laser. Detailed Implementation
[0026] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings. Identical components are indicated by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "up," and "down" used in the following description refer to directions in the accompanying drawings, while the terms "inner" and "outer" refer to directions toward or away from the geometric center of a specific component, respectively.
[0027] In this utility model, unless otherwise explicitly specified and limited, the term "fixed" and similar terms should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal connection of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0028] like Figure 1As shown, the present invention provides an easy-to-adjust parallel coupling device, including a first clamping mechanism 1 for clamping a lens, a second clamping mechanism 2 for clamping an optical fiber, and a mounting mechanism 3 disposed between the first clamping mechanism 1 and the second clamping mechanism 2. The upper surface of the mounting mechanism 3 is provided with a CCD photoelectric probe 32.
[0029] The first clamping mechanism 1 includes a first clamp 12 and a first adjustment component 11 for adjusting the position of the first clamp 12, and the second clamping mechanism 2 includes a second clamp 22 and a second adjustment component 21 for adjusting the position of the second clamp 22.
[0030] This invention provides an easily adjustable parallel coupling device, comprising a first clamping mechanism 1, a second clamping mechanism 2, and a mounting mechanism 3. The first clamping mechanism 1 is used to clamp a lens, the second clamping mechanism 2 is used to clamp an optical fiber, and the mounting mechanism 3 is disposed between the first clamping mechanism 1 and the second clamping mechanism 2. The upper surface of the mounting mechanism 3 is provided with a CCD photoelectric probe 32 for observing and assisting in adjusting the optical coupling state.
[0031] The first clamping mechanism 1 includes a first clamp 12 and a first adjustment assembly 11. The first clamp 12 is used to fix lenses of different sizes. Its structure is a long, curved tweezer, which is convenient for clamping small or irregularly shaped lens elements. The first clamp 12 is connected to the first mounting base 112 through a detachable connection assembly. During installation, different through holes can be selected for fixing according to the specific lens position requirements to achieve position optimization. The first clamp 12 is also provided with an adjustment through hole, in which a rotary adjustment screw or sliding buckle structure is provided for fine adjustment of the clamp opening width, thereby adapting to lenses or lens assemblies of different thicknesses, preventing lens damage due to excessive clamping, or displacement due to insecure clamping.
[0032] The first mounting base 112 is mounted on the upper surface of the first six-dimensional adjustment frame 111. The first six-dimensional adjustment frame 111, as the core structure of the first adjustment assembly 11, can achieve linear movement in the X, Y, and Z directions, as well as rotational adjustment around the X, Y, and Z axes. Combined with a fine-tuning screw structure or a slide rail platform, it can achieve sub-millimeter level precision adjustment. After the lens is clamped in the first clamp 12, its position and angle can be meticulously calibrated using the first six-dimensional adjustment frame 111, ensuring that the emitted light is stably collimated or focused onto the target point.
[0033] The second clamping mechanism 2 is similar in structure to the first clamping mechanism 1, also including a second clamp 22 and a second adjustment component 21. The second clamp 22 is a double-arm elastic structure with an elastic element embedded inside, forming two functional areas: a clamping end and an operating end. The clamping end is used to flexibly fix the optical fiber, avoiding deformation or core breakage caused by rigid clamping. The operating end is located above the clamp, allowing for quick release and replacement of the optical fiber by manually pressing the operating end, making operation convenient and the structure stable.
[0034] The second clamp 22 is mounted on the second mounting base 212 via the connector 122, and the second mounting base 212 is connected to the second six-dimensional adjustment frame 211. Similar to the first six-dimensional adjustment frame 111, the second six-dimensional adjustment frame 211 also achieves six-degree-of-freedom adjustment, enabling precise fine-tuning of the spatial position of the optical fiber output end according to actual coupling requirements. Through this structural configuration, the optical fiber output end can be freely positioned in three-dimensional space. Combined with CCD observation feedback, the alignment state can be gradually optimized, improving coupling efficiency.
[0035] The mounting mechanism 3 is located between the first clamping mechanism 1 and the second clamping mechanism 2. A CCD photoelectric probe 32 is provided on its upper surface. The CCD photoelectric probe 32 is used to monitor key information such as the positional deviation between the laser and the optical fiber input or output end, the shape of the light spot, and the coupling brightness in real time, so as to assist the adjustment personnel in dynamic alignment.
[0036] To improve CCD detection accuracy, the mounting mechanism 3 is equipped with a third adjustment component 31, which is preferably a high-precision six-dimensional adjustment platform. Its upper surface is connected to the lower housing of the CCD photoelectric probe 32. Through the third adjustment component 31, parameters such as the front-back, left-right, up-down, and pitch angles of the CCD probe can be precisely adjusted, ensuring that its detection surface remains perpendicular to the beam direction, thereby improving image clarity and analysis accuracy, and further enhancing the automation and controllability of the coupling operation.
[0037] In summary, the easily adjustable parallel coupling device provided by this utility model embodiment uses a first clamping mechanism 1 and a second clamping mechanism 2 to clamp the lens and optical fiber in an adjustable position. After clamping the lens and optical fiber, the first clamping mechanism 1 and the second clamping mechanism 2 can adjust the relative position of the lens and the optical fiber by adjusting the first adjustment component 11 and the second adjustment component 21. This facilitates adjusting the relative position of the optical fiber and the lens during parallel coupling, and allows for the detection of coupling power and improvement of light quality.
[0038] In one embodiment, the mounting mechanism 3 further includes a third adjustment component 31 for adjusting the CCD photoelectric probe 32, the CCD photoelectric probe 32 being disposed on the third adjustment component 31.
[0039] In one embodiment, the third adjustment component 31 includes a six-dimensional adjustment platform, and a CCD photoelectric probe 32 is disposed on the upper surface of the six-dimensional adjustment platform.
[0040] In one embodiment, the first adjustment component 11 includes a first six-dimensional adjustment frame 111 and a first mounting base 112 connected to the first six-dimensional adjustment frame 111, wherein the first clamp 12 is detachably connected to the first mounting base 112.
[0041] The second adjustment assembly 21 includes a second six-dimensional adjustment frame 211 and a second mounting base 212 connected to the second six-dimensional platform. The second clamp 22 is detachably connected to the second mounting base 212.
[0042] In one embodiment, the first adjustment mechanism further includes a mounting bracket 13 for mounting the laser 4, the mounting bracket 13 being adjustable in relative position to the first mounting base 112.
[0043] In one embodiment, the lower surface of the first mounting base 112 is provided with a groove, and the upper end of the mounting frame 13 is embedded in the groove. The laser 4 can rise or fall relative to the mounting frame 13, so that the laser 4 can adjust its horizontal and vertical positions relative to the first mounting base 112.
[0044] In one embodiment, the first clamp 12 is a long, curved tweezer. Further, the first clamp 12 is provided with multiple mounting through holes 121, through which a connector 122 is inserted and connected to the side of the first mounting base 112. The first clamp 12 is provided with an adjustment through hole, on which an adjustment member 123 is provided for adjusting the tightness of the first clamp 12.
[0045] In one embodiment, the second clamp 22 is provided with an elastic element, the lower end of the second clamp 22 is a clamping end for clamping the optical fiber, and the upper end of the second clamp 22 is an operating end for pressing to release the optical fiber.
[0046] In a preferred embodiment, a mounting bracket 13 is further provided above the first adjustment component 11. The mounting bracket 13 is used to mount the laser 4, which serves as the initial light source of the laser coupling system and is used to emit a collimated laser beam. The mounting bracket 13 is tunably connected to the first mounting base 112 via a connecting component. In actual operation, the laser 4 can be adjusted as a whole along with the first clamp 12, and its position can also be finely adjusted relative to the first mounting base 112 by the mounting bracket 13 alone, especially the horizontal and vertical position corrections.
[0047] Preferably, the lower surface of the first mounting base 112 is provided with a sliding groove, which is a parallel groove structure. The upper end of the mounting bracket 13 is embedded in the sliding groove and can slide along its longitudinal direction. By adjusting the position of the slider or the sliding rail limiting structure, the laser 4 can be moved slightly on the horizontal plane. At the same time, the laser 4 body is provided with a lifting adjustment structure, such as a lead screw or lifting sliding rail. After the sliding groove is fixed, the height of the laser 4 can be changed by the vertical adjustment component to ensure that the laser beam emitted by the laser 4 is located on the center line of the lens optical axis and to avoid deviation in the initial coupling stage.
[0048] In practical use, the operator first places and clamps the lens in the first clamp 12, and then coarsely adjusts its angle and position using the first six-dimensional adjustment frame 111. Next, the optical fiber is inserted into the clamping end of the second clamp 22, and after fixing, it is aligned using the second six-dimensional adjustment frame 211. Simultaneously, the position and focal length of the CCD photodetector 32 are adjusted using the third six-dimensional adjustment platform to achieve real-time observation of the laser spot. When the laser spot in the CCD image is at its brightest and most accurately positioned, it indicates that high-precision coupling has been completed. At this point, the locking devices along each axis of the six-dimensional adjustment frame can be further tightened to fix the relative position of the lens and the optical fiber, preventing coupling failure due to vibration or environmental changes.
[0049] This invention features an easily adjustable parallel coupling device that integrates multiple independently adjustable six-dimensional platforms, making the spatial position adjustment between optical devices more flexible and precise. The addition of the CCD photoelectric probe 32 provides clear and intuitive image feedback for the alignment process. The entire device has a compact structure and flexible assembly, and is suitable for the precision coupling operation of various laser devices with optical fibers. It has good application prospects in scientific research experiments, optical communication debugging, and optical module production testing.
[0050] Of course, the above embodiments are only one or more preferred structural illustrations of this utility model. Any equivalent transformations and substitutions made by those skilled in the art to the structural layout, connection method or position of functional components without departing from the principle of this utility model shall be considered to fall within the protection scope of this utility model.
[0051] As needed, the above technical solutions can be combined to achieve the best technical effect.
[0052] The above are merely the principles and preferred embodiments of this utility model. It should be noted that, for those skilled in the art, several other modifications can be made based on the principles of this utility model, and these modifications should also be considered within the scope of protection of this utility model.
Claims
1. A coupling device that is easy to adjust for parallelism, characterized in that, It includes a first clamping mechanism (1) for clamping a lens, a second clamping mechanism (2) for clamping an optical fiber, and a mounting mechanism (3) disposed between the first clamping mechanism (1) and the second clamping mechanism (2). The upper surface of the mounting mechanism (3) is provided with a CCD photoelectric probe (32). The first clamping mechanism (1) includes a first clamp (12) and a first adjustment component (11) for adjusting the position of the first clamp (12), and the second clamping mechanism (2) includes a second clamp (22) and a second adjustment component (21) for adjusting the position of the second clamp (22).
2. The easily adjustable parallel coupling device according to claim 1, characterized in that, The mounting mechanism (3) further includes a third adjustment component (31) for adjusting the CCD photoelectric probe (32), the CCD photoelectric probe (32) being disposed on the third adjustment component (31).
3. The easily adjustable parallel coupling device according to claim 2, characterized in that, The third adjustment component (31) includes a six-dimensional adjustment platform, and the CCD photoelectric probe (32) is disposed on the upper surface of the six-dimensional adjustment platform.
4. The easily adjustable parallel coupling device according to claim 1, characterized in that, The first adjustment component (11) includes a first six-dimensional adjustment frame (111) and a first mounting base (112) connected to the first six-dimensional adjustment frame (111). The first clamp (12) is detachably connected to the first mounting base (112). The second adjustment component (21) includes a second six-dimensional adjustment frame (211) and a second mounting base (212) connected to the second six-dimensional platform. The second clamp (22) is detachably connected to the second mounting base (212).
5. The easily adjustable parallel coupling device according to claim 4, characterized in that, The first adjustment mechanism also includes a mounting bracket (13) for mounting the laser (4), the mounting bracket (13) being adjustable relative to the first mounting base (112).
6. The easily adjustable parallel coupling device according to claim 5, characterized in that, The lower surface of the first mounting base (112) is provided with a sliding groove, and the upper end of the mounting bracket (13) is embedded in the sliding groove. The laser (4) can rise or fall relative to the mounting bracket (13), so that the laser (4) can adjust its horizontal and vertical positions relative to the first mounting base (112).
7. The easily adjustable parallel coupling device according to claim 4, characterized in that, The first clamp (12) is a long, curved tweezer.
8. The easily adjustable parallel coupling device according to claim 7, characterized in that, The first clamp (12) is provided with a plurality of mounting through holes (121), and a connector (122) passing through one of the mounting through holes (121) is embedded in and connected to the side of the first mounting base (112).
9. The easily adjustable parallel coupling device according to claim 8, characterized in that, The first clamp (12) is provided with an adjustment through hole, and the adjustment through hole is provided with an adjustment element (123) for adjusting the tightness of the first clamp (12).
10. The easily adjustable parallel coupling device according to claim 4, characterized in that, The second clamp (22) is provided with an elastic element. The lower end of the second clamp (22) is a clamping end (221) for clamping the optical fiber, and the upper end of the second clamp (22) is an operating end (222) for pressing to release the optical fiber.