Light spot angle measuring device

Abstract

The utility model discloses a light spot angle measuring device, which comprises a base, a fixing clamp, a detection device and a displacement assembly, and is characterized in that the fixing clamp is fixed on the base and is used for supporting an assembly to be measured; the detection device is used for receiving and detecting the position of a light spot projected by the to-be-detected assembly; and the displacement assembly is fixed on the base and is used for supporting and driving the detection device to be close to or far away from the fixed clamp. According to the light spot angle measuring device, the assembly to be measured is fixed on the fixing clamp, the detection device is adjusted through the displacement assembly to obtain light spot position data at different positions, the light spot angle value is finally calculated, and the coupling quality of the optical fiber array and the micro lens array in the assembly to be measured is judged through the light spot angle value. The detection device is simple in structure, high in detection precision and convenient to use.

Description

Technical Field

[0001] The utility model belongs to the technical field of communication equipment, and specifically relates to a device for measuring the spot angle. Background Art

[0002] CPO co-packaged optics is a new type of optical packaging technology. By encapsulating multiple optical components in a small chip, it realizes high-integration and high-efficiency optical transmission and processing. CPO technology can miniaturize and micro-miniaturize high-speed optical modules, reduce the chip packaging area, and thus improve the system integration. CPO will enable direct connection from CPUs and GPUs to various devices, thus realizing resource pooling and memory decomposition. It can also reduce the connection length between optical devices and circuit boards, thereby reducing signal transmission loss and power consumption, and improving communication speed and quality. In addition, CPO technology can achieve higher data density and faster data transmission speed, meet the requirements of modern high-speed communication, and has broad application prospects in the fields of communication, sensing, and biomedicine.

[0003] The fiber array and microlens array assembly are important components in CPO technology. Accurately measuring the spot angle of the fiber array and microlens array assembly can provide a basis for judging the coupling quality of the fiber array and microlens array assembly during the manufacturing process.

[0004] The information disclosed in this background art section is only intended to enhance the overall understanding of the utility model and should not be regarded as an admission or any form of implication that this information constitutes prior art already known to those of ordinary skill in the art. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a measuring device for accurately detecting the spot angle of a fiber array and a microlens array.

[0006] To achieve the above purpose, a specific embodiment of the utility model provides a spot angle measuring device, including a base, a fixed clamp, a detection device, and a displacement component. The fixed clamp is fixed on the base and is used to support the component to be measured; the detection device is used to receive and detect the position of the spot projected by the component to be measured; the displacement component is fixed on the base and is used to support and drive the detection device to approach or move away from the fixed clamp.

[0007] In one or more embodiments of the utility model, the displacement component includes a track, a support platform, and a lead screw. The track is fixed on the base. The support platform is supported on the track and can move on the track. Both ends of the lead screw are supported on the track and are in threaded cooperation with the support platform.

[0008] In one or more embodiments of the present utility model, the displacement assembly further includes a motor that connects to and drives the rotation of the lead screw.

[0009] In one or more embodiments of the present utility model, the fixed fixture includes a support plate for supporting the component to be measured, and an adjustment assembly that connects to and drives the movement of the support plate to adjust the position of the component to be measured.

[0010] In one or more embodiments of the present utility model, the adjustment assembly includes a first stage. The first stage includes a first base plate supported on the base, and a first movable plate supported and movable on the first base plate. The first movable plate is connected to the support plate, and the moving direction is perpendicular to the moving direction of the detection device.

[0011] In one or more embodiments of the present utility model, the first stage further includes a first screw fixed to the first base plate, and a first baffle fixed to the first movable plate and connected to the first screw.

[0012] In one or more embodiments of the present utility model, the adjustment assembly includes a second stage. The second stage includes a second base plate supported on the base, and a second movable plate supported and movable on the second base plate. The second movable plate is connected to the support plate and has the same moving direction as the detection device.

[0013] In one or more embodiments of the present utility model, the second stage further includes a second screw fixed to the second base plate, and a second baffle fixed to the second movable plate and connected to the second screw.

[0014] In one or more embodiments of the present utility model, the adjustment assembly includes a third stage. The third stage includes a fixed block, a third screw, and a driving block. The fixed block is supported on the base, the driving block is pivotally connected to the fixed block, the third screw is installed on the fixed block, and it can abut against and drive the driving block to rotate. When the driving block rotates, it can abut against and drive the support plate to rotate.

[0015] In one or more embodiments of the present utility model, the fixed fixture further includes a pressing strip fixed to the base, and the pressing strip is used to fix the component to be measured on the support plate.

[0016] Compared with the prior art, the spot angle measuring device of the present utility model fixes the component to be measured on the fixed fixture, and adjusts the detection device through the displacement assembly to obtain the spot position data at different positions, and finally calculates the spot angle value. The coupling quality of the fiber array and the microlens array in the component to be measured is judged by the spot angle value. The detection device has a simple structure, high detection accuracy, and is convenient to use. Brief Description of the Drawings

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings described below are only some embodiments recorded in the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0018] Figure 1 It is a schematic diagram of a spot angle measuring device in an embodiment of the present invention;

[0019] Figure 2 It is a schematic diagram of a detection device and a displacement component in an embodiment of the present invention;

[0020] Figure 3 It is a schematic diagram of a fixing jig in an embodiment of the present invention.

[0021] Main reference numerals description:

[0022] 100 - Spot angle measuring device, 10 - Base, 20 - Fixing jig, 21 - First stage, 211 - First base plate, 212 - First movable plate, 213 - First screw, 214 - First baffle, 22 - Second stage, 221 - Second base plate, 222 - Second movable plate, 223 - Second screw, 224 - Second baffle, 23 - Third stage, 231 - Fixed block, 232 - Support plate, 233 - Third screw, 234 - Driving block, 24 - Pressure strip, 25 - Spacer block, 26 - Mounting plate, 31 - Detection device, 32 - Displacement component, 321 - Track, 322 - Support platform, 323 - Lead screw, 33 - Motor, 40 - Component to be measured. Detailed Description of the Embodiments

[0023] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0024] Such as Figures 1-3As shown, a spot angle measuring device 100 in one embodiment of the utility model comprises a base 10, a fixing fixture 20, a detection device 31 and a displacement assembly 32. The fixing fixture 20 is fixed on the base 10, and is used to support and fix the component to be measured 40. The detection device 31 (such as a commonly used beam analyzer) is used to receive and detect the position of the spot projected by the component to be measured 40. The displacement assembly 32 is fixed on the base 10, and is used to support and drive the detection device 31 to approach or move away from the fixing fixture 20. When in use, the optical fiber 40 to be measured is fixed on the fixing fixture 20, and the end of the optical fiber 40 facing away from the detection device 31 is connected to the light source, and the outgoing light is projected on the detection device 31 to form a spot. The position of the detection device 31 is adjusted by the displacement assembly 32 to obtain multiple spot coordinates, and the spot angle can be obtained by calculation, which is used to provide a basis for judging the coupling quality of the optical fiber array and the microlens array.

[0025] Specifically, the displacement assembly 32 includes a track 321, a support platform 322 and a screw rod 323. The track 321 is fixed on the base 10. The support platform 322 is used to install and fix the detection device 31, which is supported on the track 321 and can move along the extension direction of the track 321. Both ends of the screw rod 323 are supported on the track 321 and are threadedly matched with the support platform 322. By rotating the screw rod 323, the support platform 322 can be driven to move under the action of the thread, so that the detection device 31 approaches or moves away from the component to be tested 40, so that the detection device 31 receives the spot coordinates at different distances.

[0026] Preferably, the screw rod 323 is mechanically driven, as shown in FIG. Figure 2 As shown, a motor 33 is fixed at one end of the track 321, which is connected to and drives the screw rod 323 to rotate. The use of a motor drive method can improve the overall operation accuracy of the displacement assembly 32, thereby improving the calculation and measurement accuracy.

[0027] In one embodiment, the fixing fixture 20 can adjust the position of the component to be tested 40 to meet different test requirements and improve flexibility. Specifically, the fixing fixture 20 includes a mounting plate 26 and an adjustment component, the adjustment component is fixed on the base 10, the component to be tested 40 is fixed on the mounting plate 26, and the adjustment component is used to adjust the position of the mounting plate 26, thereby adjusting the position or light output angle of the component to be tested 40.

[0028] Among them, the adjustment component includes a first carrier 21, which specifically includes a first bottom plate 211 and a first movable plate 212. The first bottom plate 211 is fixed on the base 10, the mounting plate 26 is supported on the first movable plate 212, and the first movable plate 212 is supported on the first fixed plate 211 and can move on the first fixed plate 211.

[0029] The first stage 21 further includes a first screw rod 213 and a first baffle 214. The first screw rod 213 is fixed on the first bottom plate 211. The first baffle 214 is fixed on the first movable plate 212 and connected to the first screw rod 213. By rotating the first screw rod 213, the first baffle 214 can be driven to move along the axial direction of the first screw rod 213, thereby driving the first movable plate 212 to move on the first bottom plate 211. The moving direction of the first movable plate 212 is perpendicular to the moving direction of the detecting device 31. Therefore, the first stage 21 is used to adjust the horizontal position of the component 40 to be measured and the horizontal position of the light spot projected on the detecting device 31.

[0030] In one embodiment, the adjusting assembly further includes a second stage 22, which is composed of a second bottom plate 221, a second movable plate 222, a second screw rod 223 and a second baffle 224. The structure of the second stage 22 is the same as that of the first stage 21 and will not be described herein again. The moving direction of the second movable plate 222 is the same as the moving direction of the detecting device 31, and is used to finely adjust the position of the component 40 to be measured, and cooperate with the displacement assembly 32 to determine the distance between the component 40 to be measured and the detecting device 31.

[0031] In another embodiment, the adjusting assembly includes a third stage 23. The third stage 23 includes a fixing block 231, a support plate 232, a third screw rod 233 and a driving block 234. The fixing block 231 is fixed on the second movable plate 222. The support plate 232 is pivotally connected to the second movable plate 222, and the mounting plate 26 is fixed on the support plate 232. The driving block 234 is pivotally connected to the side wall of the support plate 232 and is located below the support plate 232. The third screw rod 233 is installed on the fixing block 231 and can abut against one end of the driving block 234. When the third screw rod 233 is rotated, the third screw rod 233 abuts against and drives the driving block 234 to rotate, and the other end of the driving block 234 can contact and lift the support plate 232, so as to adjust the light emitting direction of the component 40 to be measured in the vertical direction.

[0032] The adjusting assembly can be composed of one / two / all of the first stage 21, the second stage 22 and the third stage 23. For example Figure 3 In the shown embodiment, the second bottom plate 221 is fixed on the first movable plate 212, and the fixing block 231 is fixed on the second movable plate 222. At this time, the adjusting assembly can perform three-way adjustment on the mounting plate 26, so as to adjust the horizontal direction and light emitting angle of the component 40 to be measured, and finely adjust the distance between it and the detecting device 31, with high flexibility.

[0033] Such as Figure 3As shown, the fixed fixture 20 further includes a pressing strip 24 fixed to the base 10. At the same time, a cushion block 25 is also fixed on the base 10. The pressing strip 24 is installed on the cushion block 25 and thus is located above the support plate 232. One end of the pressing strip 24 extends to the support plate 232 to fix the component 40 to be tested on the support plate 232, preventing it from moving erroneously during the test to ensure stability.

[0034] Here, in combination with a specific usage scenario, the spot angle measuring device 100 in this embodiment will be further described. Its usage method includes the following steps:

[0035] 1. Place the component 40 to be tested on the support plate 232 and press it tightly with the pressing strip 24. After moving the detection device 31 to a position relatively close to the component 40 to be tested, the component 40 to be tested is connected to a light source, and a spot is projected onto the detection device 31. Measure the near-field position of the spot, including the X-axis (horizontal) and Y-axis (vertical) directions, and record the position coordinates as (x1, y1).

[0036] 2. Drive the detection device 31 to move a distance L in a direction away from the component 40 to be tested through the motor 33. The detection device 31 measures the far-field position of the spot again, including the X-axis (horizontal) and Y-axis (vertical) directions, and records the position coordinates as (x2, y2).

[0037] 3. Calculate the spot angle value θ in the X direction respectively through the formula x , the spot angle value θ in the Y direction y and the comprehensive spot angle value θ BA . The specific calculation formulas are as follows:

[0038]

[0039] The spot angle value θ can be obtained through simple calculation. BA Through this spot angle value θ BA the coupling quality of the fiber array and the microlens array in the component 40 to be tested can be judged.

[0040] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present utility model. Any reference signs in the claims should not be regarded as limiting the claimed rights.

[0041] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A spot angle measuring device, characterized in that: include: Base; A fixing fixture, fixed on the base, and used to support the component to be tested; A detection device, used for receiving and detecting the position of the light spot projected by the component to be tested; as well as The displacement assembly is fixed on the base and is used to support and drive the detection device to approach or move away from the fixing fixture.

2. The spot angle measuring device according to claim 1, characterized in that: The displacement assembly includes a track, a support platform and a screw rod. The track is fixed on the base, the support platform is supported on the track and can move on the track, and both ends of the screw rod are supported on the track and are threadedly matched with the support platform.

3. The spot angle measuring device according to claim 2, characterized in that: The displacement assembly also includes a motor connected to and driving the lead screw to rotate.

4. The spot angle measuring device according to claim 1, characterized in that: The fixing fixture comprises a supporting plate for supporting the component to be tested, and an adjusting component connected to and driving the supporting plate to move so as to adjust the position of the component to be tested.

5. The spot angle measuring device according to claim 4, characterized in that: The adjustment assembly includes a first carrier, which includes a first bottom plate supported on the base, and a first movable plate supported and moved on the first bottom plate. The first movable plate is connected to the support plate, and the moving direction is perpendicular to the moving direction of the detection device.

6. The spot angle measuring device according to claim 5, characterized in that: The first carrier also includes a first screw rod fixed to the first bottom plate, and a first baffle plate fixed to the first movable plate and connected to the first screw rod.

7. The spot angle measuring device according to claim 4, characterized in that: The adjustment assembly includes a second carrier, the second carrier includes a second bottom plate supported on the base, and a second movable plate supported and moved on the second bottom plate, the second movable plate is connected to the support plate and has the same moving direction as the detection device.

8. The spot angle measuring device according to claim 7, characterized in that: The second carrier also includes a second screw rod fixed to the second bottom plate, and a second baffle plate fixed to the second movable plate and connected to the second screw rod.

9. The spot angle measuring device according to claim 4, characterized in that: The adjustment assembly includes a third carrier, and the third carrier includes a fixed block, a third screw and a driving block. The fixed block is supported on the base, and the driving block is pivotally connected to the fixed block. The third screw is installed on the fixed block, and can abut and drive the driving block to rotate. When the driving block rotates, it can abut and drive the support plate to rotate.

10. The spot angle measuring device according to claim 4, characterized in that: The fixing fixture further comprises a pressure strip fixed on the base, and the pressure strip is used to fix the component to be tested on the support plate.

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