Auxiliary device for debugging small-size coaxial collimator
Through the combination of debugging auxiliary devices and spot testers, efficient debugging of small-size coaxial collimator is achieved, and the accuracy and stability problems in the existing technology are solved, production difficulty is reduced, and product quality is improved.
Patent Information
- Application Number
- CN202422222999.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-11
- Publication Date
- 2025-08-12
- Estimated Expiration
- 2034-09-11
AI Technical Summary
The prior art is difficult to efficiently debug small-sized coaxial collimators, especially with challenges in accuracy and stability.
The debugging auxiliary device including debugging guide rails, light receiving equipment and coaxial collimator fixtures is adopted to receive the light beam emitted by the collimator through the light receiving equipment, and combine the five-dimensional adjustment frame and the spot tester to achieve accurate alignment and angle adjustment of the collimator.
It reduces the production difficulty of small-size coaxial collimators, improves production efficiency and product quality stability, and simplifies the debugging process.
Smart Images
Figure CN223217743U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of optical fiber communication technology, and in particular to a small-sized coaxial collimator debugging auxiliary device. Background Art
[0002] Fiber optic collimators are a key component in the field of fiber optic communications. The Gaussian laser beam emitted by the light source is input from the optical fiber and, after being collimated by the optical collimator, becomes a nearly parallel collimated beam with a very small divergence angle within a certain working distance. The traditional fiber optic collimator structure mainly consists of an optical fiber and its fixing structure, a lens, and peripheral fixings. Due to the refractive index difference and processing errors between the optical fiber core and the lens, the laser beam emitted from the lens is often not parallel to the mechanical axis of the peripheral fixing. Taking the coaxial collimator (a coaxial collimator is generally an external package added to the original collimator) as an example, in order to achieve high-efficiency coupling of the laser beam of the internal collimator, the collimator's output optical axis needs to coincide with the outermost mechanical axis to achieve this effect. Usually, the gap and angle of the collimator in the peripheral package are adjusted to achieve the effect of coinciding the light output axis and the mechanical axis of the peripheral fixing.
[0003] The traditional debugging method is: use a high-precision coaxial sleeve to assemble the coaxial standard parts and the outer packaging sleeve (also called peripheral packaging). Align and couple the assembled standard parts with the collimator that actually needs to be installed, debug until the docking loss is minimum, then push the collimator into the outer packaging sleeve and continue to debug until the loss is minimum, and then fix it with UV glue to complete the alignment and debugging of the collimator. However, this method is only applicable to large-sized collimators with outer packaging sleeve diameters of about 3mm or 2mm that are common on the market. This is because when debugging small-sized coaxial collimators (such as about 1mm), the parts of the small-sized coaxial collimator are reduced in size as a whole, and its high-precision standard parts are difficult to manufacture. During production, its accuracy is not as good as that of large-sized standard parts. Therefore, it is urgent to propose an auxiliary device that is convenient for the alignment and debugging of small-sized coaxial collimators. Utility Model Content
[0004] The present application provides a small-sized coaxial collimator debugging auxiliary device, which facilitates the installation of a small-sized coaxial collimator.
[0005] The above-mentioned purpose of this application is achieved through the following technical solutions:
[0006] A small-sized coaxial collimator debugging auxiliary device includes a debugging guide rail, on which a light receiving device and a coaxial collimator fixture are sequentially arranged along its length. The bottoms of the light receiving device and the coaxial collimator fixture are both slidably connected to the debugging guide rail, and the light receiving end of the light receiving device faces the coaxial collimator fixture.
[0007] The coaxial collimator fixture can be used to clamp the outer packaging sleeve of a small-sized coaxial collimator, and the light receiving device can be used to receive the light beam emitted by the collimator to be debugged in the outer packaging sleeve clamped by the coaxial collimator fixture.
[0008] Furthermore, a light source output module is provided on a side of the coaxial collimator fixture away from the light receiving device. After the light source output module is connected to the collimator to be debugged, it can stimulate the collimator to be debugged to emit light.
[0009] Furthermore, the light receiving device is a spot tester, the base of the spot tester is slidably mounted on the debugging guide rail, the base of the spot tester can slide freely along the length direction of the debugging guide rail, and the target surface of the spot tester faces the coaxial collimator fixture.
[0010] Furthermore, the coaxial collimator fixture includes a five-dimensional adjustment frame and a main clamping unit, the base of the five-dimensional adjustment frame is slidably mounted on the debugging guide rail, the base of the five-dimensional adjustment frame can slide freely along the length direction of the debugging guide rail, and the main clamping unit is mounted on the top of the five-dimensional adjustment frame.
[0011] Furthermore, the main clamping unit includes a top-level basic tooling, which is slidably installed on the top of the five-dimensional adjustment frame body along the length direction of the debugging guide rail. A support vertical plate is installed on the top-level basic tooling near one end of the light spot tester. A through hole is provided at the upper end of the support vertical plate, and a horizontal adjustment bolt is inserted on one side of the support vertical plate along the width direction of the debugging guide rail.
[0012] Furthermore, a measuring scale is provided on the debugging guide rail along its length direction.
[0013] Furthermore, the bases of the light spot tester and the five-dimensional adjustment frame are both installed with limiting bolts on one side, and the limiting bolts can fix them to the debugging rail when they move to a specified position along the debugging rail.
[0014] In summary, this application includes at least one of the following beneficial technical effects:
[0015] When the debugging auxiliary device of the present application debugs a small-size coaxial collimator, the collimator to be debugged is temporarily fixed together with the outer packaging sleeve, and then the coaxial collimator clamp is used to clamp the outer packaging sleeve and the light beam emitted by the collimator to be debugged in the outer packaging sleeve is directed toward the light receiving device. As the technician rotates the outer packaging sleeve 360° around the axis on the coaxial collimator clamp, the light emitted by the collimator to be debugged will draw a circular track on the light receiving device. The center of the circular track is the projection of the axis of the outer packaging sleeve on the light receiving device. Then the coaxial collimator clamp is adjusted so that the axis of the outer packaging sleeve coincides with the center of the light receiving device. Next, the angle position of the collimator to be debugged in the outer packaging sleeve can be manually adjusted so that the light emitted by it always falls on the center of the light receiving device. In this way, the debugging work of the collimator to be debugged can be completed. Compared with the existing technology, the debugging auxiliary device of the present application does not need to rely on the production and manufacturing of small-sized coaxial collimator standard parts with high difficulty and unstable quality when debugging small-sized coaxial collimators. The present application only requires a coaxial collimator and a light receiving device to realize the debugging work of the small-sized coaxial collimator, which can effectively reduce the difficulty of producing small-sized coaxial collimators. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.
[0017] Figure 1 It is a schematic diagram of the overall three-dimensional structure of this application;
[0018] Figure 2 yes Figure 1 Schematic diagram of the enlarged structure at A in the middle;
[0019] Figure 3 It is a side view of this application.
[0020] Figure numerals: 1. Debugging guide rail; 2. Light receiving device; 3. Coaxial collimator fixture; 31. Five-dimensional adjustment frame; 32. Main clamping unit; 321. Top-level basic tooling; 322. Support vertical plate; 323. Through hole; 324. Adjustment bolt; 4. Outer packaging sleeve; 5. Collimator to be debugged; 6. Light source output module; 7. Measuring scale; 8. Limit bolt. DETAILED DESCRIPTION
[0021] To make the purpose, technical solutions, and advantages of the embodiments of this application more clear, the technical solutions in the embodiments of this application are clearly and completely described below. Obviously, the described embodiments are part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts also fall within the scope of protection of this application.
[0022] like Figure 1 and Figure 3 As shown, a small-sized coaxial collimator debugging auxiliary device disclosed in the present application includes a debugging guide rail 1, on which a light receiving device 2 and a coaxial collimator fixture 3 are sequentially provided along its length direction. The bottoms of the light receiving device 2 and the coaxial collimator fixture 3 are both slidably connected to the debugging guide rail 1, and the light receiving end of the light receiving device 2 faces the coaxial collimator fixture 3; the coaxial collimator fixture 3 can be used to clamp the outer packaging sleeve 4 of the small-sized coaxial collimator, and the light receiving device 2 can be used to receive the light beam emitted by the collimator 5 to be debugged in the outer packaging sleeve 4 clamped by the coaxial collimator fixture 3.
[0023] In the above embodiment, the debugging guide rail 1 of the present application is in the shape of a long strip, so that the light receiving device 2 and the coaxial collimator fixture 3 can have a relatively large range of movement on the debugging guide rail 1. The coaxial collimator fixture 3 can be used to clamp the outer packaging sleeve 4 of the coaxial collimator to be debugged, and the position of the outer packaging sleeve 4 can be adjusted. The light receiving device 2 can receive the light emitted by the collimator to be debugged 5 in the outer packaging sleeve 4, so that the light spot generated by the light emitted by the collimator to be debugged 5 appears on it, which makes it convenient for technicians to observe the position of the collimator to be debugged 5 and its outer outer packaging sleeve 4.
[0024] During actual debugging, the technician first temporarily fixes the collimator 5 to be debugged together with the outer packaging sleeve 4, and then uses the coaxial collimator fixture 3 to clamp the outer packaging sleeve 4 and direct the light beam emitted by the collimator 5 to be debugged in the outer packaging sleeve 4 toward the light receiving device 2. As the technician rotates the outer packaging sleeve 4 360° around the axis on the coaxial collimator fixture 3, the light emitted by the collimator to be debugged will draw a circular trajectory on the light receiving device 2. The center of the circular trajectory is the projection of the axis of the outer packaging sleeve 4 on the light receiving device 2. Then the coaxial collimator fixture 3 is adjusted so that the axis of the outer packaging sleeve 4 coincides with the center of the light receiving device 2. Next, the angle position of the collimator 5 to be debugged in the outer packaging sleeve 4 can be manually adjusted so that the light emitted by it always falls on the center of the light receiving device 2. In this way, the debugging work of the collimator 5 to be debugged can be completed. Compared with the existing technology, the present application only requires a coaxial collimator and a light receiving device 2 to realize the debugging of the small-size coaxial collimator. Moreover, during the debugging process, the technician only needs to accurately find the center of the outer packaging sleeve 4 on the light receiving device 2, and then make the center of the outer packaging sleeve 4 coincide with the center of the light receiving device 2. When installing the collimator 5 to be debugged, the collimator 5 to be debugged can be made to coincide with the center of the light receiving device 2. Compared with the production of small-size coaxial collimator standard parts with high process difficulty and unstable quality accuracy, this method is obviously easier for enterprises. This can effectively reduce the difficulty of producing small-size coaxial collimators and facilitate the expansion of the output of small-size coaxial collimators.
[0025] Furthermore, if Figure 1 and Figure 3 As shown, a light source output module 6 is provided on the side of the coaxial collimator fixture 3 away from the light receiving device 2 . After the light source output module 6 is connected to the collimator 5 to be debugged, it can stimulate the collimator 5 to be debugged to emit light.
[0026] In the above embodiment, after the light source output module 6 of the present application is connected to the optical fiber in the collimator 5 to be debugged, the collimator 5 to be debugged can emit light outward. When the light hits the light receiving device 2, it is convenient for technicians to determine the position of the collimator 5 to be debugged. The light source output module 6 is arranged on the side of the coaxial collimator fixture 3 away from the light receiving device 2. This can prevent the light source output module 6 from blocking the light emitted from the collimator 5 to be debugged on the coaxial collimator fixture 3 to the light receiving device 2 when in use.
[0027] Furthermore, if Figure 1 and Figure 3 As shown, the light receiving device 2 is a spot tester, the base of which is slidably mounted on the debugging guide rail 1 , and the base of the spot tester can slide freely along the length direction of the debugging guide rail 1 , with the target surface of the spot tester facing the coaxial collimator fixture 3 .
[0028] In the above embodiment, the spot tester is a prior art device used to measure the characteristics of laser beams and can provide a variety of parameter information about the beam. These parameters include the M 2 Factor, divergence angle, spot position, wavefront energy and phase distribution. When the spot tester is used in conjunction with the dedicated software on the computer, many parameters such as beam diameter, spot shape, position, power, intensity distribution, ellipticity, etc. can be measured. At the same time, a report function is provided to record the beam analysis settings and to achieve multi-parameter measurements such as laser spot quality detection, spot size, spot stability, one-dimensional, two-dimensional, and three-dimensional energy distribution. The device can basically meet the requirements of this application. The base of the spot tester of this application is slidably connected to the debugging guide rail 1, which makes it convenient to adjust the distance between the spot tester and the coaxial collimator as needed during the debugging process.
[0029] Furthermore, if Figure 1-Figure 3 As shown, the coaxial collimator fixture 3 includes a five-dimensional adjustment frame 31 and a main clamping unit 32. The base of the five-dimensional adjustment frame 31 is slidably mounted on the debugging guide rail 1. The base of the five-dimensional adjustment frame 31 can slide freely along the length direction of the debugging guide rail 1. The main clamping unit 32 is mounted on the top of the five-dimensional adjustment frame 31.
[0030] In the above embodiment, the five-dimensional adjustment frame 31 is a commonly used adjustment tool in the field of optical fiber communications. It has five degrees of freedom: three-dimensional translation and two-dimensional angular rotation, with an adjustment accuracy of up to 0.0005mm. After clamping the outer packaging sleeve 4 with the main clamping unit 32 at the top of the five-dimensional adjustment frame, technicians can use the five-dimensional adjustment frame to adjust the x, y, and z axes in different directions and perform fine-tuning movements, thereby achieving precise positioning during the debugging process as needed.
[0031] Furthermore, if Figure 1 and Figure 2 As shown, the main clamping unit 32 includes a top-level basic tooling 321, which is slidably installed on the top of the five-dimensional adjustment frame 31 body along the length direction of the debugging guide rail 1. A support vertical plate 322 is installed on the top-level basic tooling 321 near one end of the light spot tester. A through hole 323 is provided at the upper end of the support vertical plate 322, and a horizontal adjustment bolt 324 is inserted on one side of the support vertical plate 322 along the width direction of the debugging guide rail 1.
[0032] In the above embodiment, the top-level basic fixture 321 is slidably mounted on top of the main body of the five-dimensional adjustment frame 31. This not only allows the top-level basic fixture 321 to be integrally connected to the five-dimensional adjustment frame 31, but also increases the lengthwise adjustment distance of the debugging guide rail 1 on the basis of the five-dimensional adjustment frame 31. The support plate 322 mounted on the top-level basic fixture 321 elevates the area where the small-sized coaxial collimator is installed away from the top-level basic fixture 321, thus providing technicians with sufficient space to install and remove the small-sized coaxial collimator to be debugged. A through hole 323 is provided at the upper end of the support plate 322 along its thickness direction, so as to insert the outer packaging sleeve 4 of the small-sized coaxial collimator to be debugged. An adjusting bolt 324 is inserted in the horizontal direction at a height corresponding to the through hole 323 on one side of the support plate 322. When the adjusting bolt 324 is rotated in different directions, the depth of the threaded section of the adjusting bolt 324 inserted into the through hole 323 can be controlled, so that technicians can conveniently control the clamping effect of the outer packaging sleeve 4 according to needs.
[0033] Furthermore, if Figure 1 As shown, a measuring scale 7 is provided on the debugging rail 1 along its length direction.
[0034] In the above embodiment, the measuring scale 7 provided along the length direction of the debugging rail 1 facilitates the technicians to accurately control the movement of the five-dimensional adjustment frame 31 and the optical velocity mass analyzer on the debugging rail 1 .
[0035] Furthermore, if Figure 1 As shown, the spot tester and the five-dimensional adjustment frame 31 are both installed with a limit bolt 8 on one side of their bases. The limit bolt 8 can fix them to the debugging guide rail 1 when they move to a specified position along the debugging guide rail 1.
[0036] In the above embodiment, when the spot tester and the five-dimensional adjustment frame 31 of the present application need to be moved along the debugging guide rail 1, the limit bolts 8 under their respective bases can be loosened. When the movement is completed and the spot tester and the five-dimensional adjustment frame 31 need to be fixed to the guide rail, the limit bolts 8 under their respective bases can be tightened, which is simple and convenient to operate.
[0037] The implementation principle of this embodiment is as follows: when a technician needs to debug a small-sized coaxial collimator, the collimator to be debugged is first temporarily fixed to the outer packaging sleeve 4 with glue, and then the outer packaging sleeve 4 is inserted into the through hole 323 of the support plate 322 on the five-dimensional adjustment frame 31, and then the adjustment bolt 324 is screwed to clamp the outer packaging sleeve 4. At this time, it is not necessary to completely clamp the outer packaging sleeve 4 so that the technician can rotate the outer packaging sleeve 4 360° around its own axis on the support plate 322. During the rotation of the outer packaging sleeve 4, the circular trajectory generated by the light emitted by the collimator 5 to be debugged inside it will be recorded and displayed by the light spot tester. The center of the circular trajectory is the axis of the outer packaging sleeve 4. Then, the five-dimensional adjustment frame 31 is adjusted so that the axis of the outer packaging sleeve 4 on it coincides with the center of the light receiving device 2.
[0038] Next, use a thin blade to scrape off the pre-adhered glue, separating the collimator 5 to be debugged from the outer packaging sleeve 4. The angle and position of the collimator 5 to be debugged are readjusted so that the light emitted by it consistently falls on the center of the target surface. The optical axis of the collimator 5 to be debugged and the rotation axis of the outer packaging sleeve 4 are now aligned. The debugged collimator and outer packaging sleeve 4 are then re-secured with special glue. In this way, a high-precision, small-sized coaxial collimator is produced. This method can be used to debug other small-sized coaxial collimators, and this method can also be used to manufacture other small-sized coaxial collimators.
[0039] Compared with the existing technology, the debugging auxiliary device of the present application does not need to rely on the production and manufacturing of small-sized coaxial collimator standard parts with high difficulty and unstable quality when debugging small-sized coaxial collimators. The present application only needs a coaxial collimator and a light receiving device 2 to realize the debugging work of the small-sized coaxial collimator, which can effectively reduce the difficulty of producing small-sized coaxial collimators.
[0040] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or make equivalent replacements for some or all of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.
Claims
1. A small-sized coaxial collimator debugging auxiliary device, characterized by: The invention comprises a debugging guide rail (1), wherein a light receiving device (2) and a coaxial collimator fixture (3) are sequentially provided on the debugging guide rail (1) along its length direction, the bottoms of the light receiving device (2) and the coaxial collimator fixture (3) are both slidably connected to the debugging guide rail (1), and the light receiving end of the light receiving device (2) faces the coaxial collimator fixture (3); The coaxial collimator fixture (3) can be used to clamp an outer packaging sleeve (4) of a small-sized coaxial collimator, and the light receiving device (2) can be used to receive a light beam emitted by the collimator (5) to be debugged in the outer packaging sleeve (4) clamped by the coaxial collimator fixture (3).
2. The small-size coaxial collimator debugging auxiliary device according to claim 1, characterized in that: A light source output module (6) is provided on the side of the coaxial collimator fixture (3) away from the light receiving device (2); after the light source output module (6) is connected to the collimator to be debugged (5), it can stimulate the collimator to be debugged (5) to emit light.
3. The small-size coaxial collimator debugging auxiliary device according to claim 1, characterized in that: The light receiving device (2) is a light spot tester, the base of which is slidably mounted on the debugging guide rail (1), the base of which can slide freely along the length direction of the debugging guide rail (1), and the target surface of the light spot tester faces the coaxial collimator fixture (3).
4. The small-size coaxial collimator debugging auxiliary device according to claim 3, characterized in that: The coaxial collimator fixture (3) comprises a five-dimensional adjustment frame (31) and a main clamping unit (32); the base of the five-dimensional adjustment frame (31) is slidably mounted on the debugging guide rail (1); the base of the five-dimensional adjustment frame (31) can slide freely along the length direction of the debugging guide rail (1); and the main clamping unit (32) is mounted on the top of the five-dimensional adjustment frame (31).
5. The small-size coaxial collimator debugging auxiliary device according to claim 4, characterized in that: The main clamping unit (32) includes a top-level basic tooling (321), which is slidably mounted on the top of the main body of the five-dimensional adjustment frame (31) along the length direction of the debugging guide rail (1), and a supporting vertical plate (322) is mounted on the top-level basic tooling (321) near one end of the light spot tester, and a through hole (323) is provided at the upper end of the supporting vertical plate (322), and a horizontal adjusting bolt (324) is inserted into one side of the supporting vertical plate (322) along the width direction of the debugging guide rail (1).
6. The small-size coaxial collimator debugging auxiliary device according to any one of claims 1 to 5, characterized in that: The debugging guide rail (1) is provided with a measuring scale (7) along its length direction.
7. The small-size coaxial collimator debugging auxiliary device according to claim 4, characterized in that: Limiting bolts (8) are installed on one side of the base of the light spot tester and the five-dimensional adjustment frame (31), and the limiting bolts (8) can fix them together with the debugging guide rail (1) when they move to a specified position along the debugging guide rail (1).