A light transmission performance detection device for an isolator front-end splicing process

Abstract

The utility model discloses an isolator front end piece joint process's light transmission performance detection equipment of technical field of isolator light transmission performance detection, including optical flat and light source. The optical flat is equipped with light switch, upper three ring polarizer, lower three ring polarizer, upper PD probe, polarized light collimator, lower PD probe, circular light collimator, electric displacement platform, optical power meter. The light that light source sends passes through light switch, detection light path, optical power meter in proper order through optical fiber, and detection light path includes parallelly connected insertion loss detection branch and isolation detection branch. One side of electric displacement platform is equipped with the detection groove of placing the isolator of waiting for detecting. The utility model discloses through PLC automatic control electric displacement platform positioning and light switch channel switching, has improved detection efficiency and detection accuracy, realizes the automation detection.

Description

Technical Field

[0001] This utility model relates to the field of light transmission performance testing technology for isolators, and in particular to a light transmission performance testing device for the front-end lamination process of isolators. Background Technology

[0002] In the production process of 5G optical components TOSA / BOSA, the optical transmission performance testing of the isolator front-end lamination process plays a crucial role. Currently, traditional testing equipment is the most commonly used tool in the industry; however, it has revealed many drawbacks in practical applications. On the one hand, its testing efficiency is extremely low, requiring manual adjustment of the optical path and data reading, with each product taking approximately one minute to test. This is far from meeting the high-efficiency output requirements of large-scale mass production.

[0003] On the other hand, the equipment's testing accuracy is significantly insufficient. Due to the substantial subjective influence of manual operation, the optical power meter's readings have large errors, only able to detect a acceptable range of values, making it difficult to accurately determine the isolator's light transmission performance. This negatively impacts product quality control. Furthermore, its automation level is low; it lacks automatic calibration and data recording functions, making data traceability difficult and preventing integration with production lines for automated testing, thus limiting the intelligence and continuity of production. Therefore, developing a new type of testing equipment to solve these problems is urgently needed. Utility Model Content

[0004] The main objective of this invention is to provide a light transmission performance testing device for the front-end lamination process of isolators, in order to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A device for testing the light transmission performance of an isolator in the front-end lamination process includes an optical plate and a light source, the light source being used to test the light transmission performance of the isolator. The optical plate is equipped with an optical switching switch, an upper three-ring polarizer, a lower three-ring polarizer, an upper PD probe, a polarized light collimator, a lower PD probe, a circular optical collimator, an electric displacement platform, and an optical power meter. Light emitted from the light source passes sequentially through an optical fiber through the optical switching switch, the detection optical path, and the optical power meter. The detection optical path includes a parallel insertion loss detection branch and an isolation detection branch. The insertion loss detection branch includes, in sequence, the upper three-ring polarizer, the polarized light collimator, the isolator to be tested, and the lower PD probe. The isolation detection branch includes, in sequence, the lower three-ring polarizer, the circular optical collimator, the isolator to be tested, and the upper PD probe. A detection slot for placing the isolator to be tested is provided on one side of the electric displacement platform.

[0006] Furthermore, the electrical control box is equipped with a PLC and a display screen, and is electrically connected to the optical power meter, optical switching switch, and electric displacement platform.

[0007] Furthermore, an upper five-dimensional adjustment bracket and a lower five-dimensional adjustment bracket are fixed on the optical plate, arranged side by side. The upper five-dimensional adjustment bracket is equipped with an upper PD probe and a polarizing collimator, while the lower five-dimensional adjustment bracket is equipped with a lower PD probe and a circular collimator.

[0008] Furthermore, the detection heads of the upper PD probe and the lower PD probe are arranged opposite to each other, and the electric displacement platform is set between the upper PD probe and the lower PD probe.

[0009] Furthermore, the upper PD probe and the lower PD probe are electrically connected to the optical power meter.

[0010] This invention also includes other components that enable the optical transmission performance testing equipment in the front-end lamination process of the isolator to function properly. These devices or components all employ conventional techniques in the art. Furthermore, devices and components not limited in this invention all employ conventional techniques in the art, such as the optical power meter mentioned in this application. In specific implementation, appropriate equipment or component models can be selected according to the specific working scenario.

[0011] The working principle of this invention is as follows: The isolator to be tested is placed in the testing slot of the electric displacement platform. After the testing parameters are set through the display screen of the electrical control box, the PLC automatically controls the electric displacement platform to accurately position itself at the testing station. The testing light emitted by the light source is guided by an optical fiber light switching switch, and the PLC switches it to the corresponding branch channel according to the testing mode (insertion loss / isolation).

[0012] In insertion loss detection mode, the upper three-ring polarizer adjusts the polarization state of the optical path, and the optimized beam formed by the polarization collimator penetrates the isolator, is received by the lower PD probe, and transmitted to the optical power meter. In isolation detection mode, the lower three-ring polarizer, in conjunction with the circular collimator, adjusts the optical path, and the beam is captured by the upper PD probe after penetrating the isolator. The large-size PD probe effectively eliminates optical scattering and refraction errors of the isolator, and the optical power meter converts the photoelectric signal into a digital signal and feeds it back to the PLC to complete the optical transmission performance analysis.

[0013] Compared with the prior art, the present invention has the following beneficial effects: 1. Improved inspection efficiency: By using PLC to automatically control the positioning of the electric displacement platform and the switching of optical channels, the inspection station can be quickly positioned and the inspection mode can be intelligently switched, which greatly reduces the inspection time of a single piece.

[0014] 2. Improved detection accuracy: The use of a large-size PD probe eliminates optical scattering errors, and the combination of a three-ring polarizer optimizes the polarization state of the optical path, thereby improving the detection accuracy of light transmission performance.

[0015] 3. Automation of the testing process has been achieved: Through parameter setting of the electrical control box, data feedback from the optical power meter, and PLC, the testing data is automatically recorded and traced, thus automating the testing process. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model.

[0017] Figure 2 This is the optical path diagram of this utility model.

[0018] In the diagram: 1. Optical flat plate; 2. Light source; 3. Optical switching switch; 4. Upper three-ring polarizer; 5. Lower three-ring polarizer; 6. Upper five-dimensional adjustment bracket; 61. Upper PD probe; 62. Polarized light collimator; 7. Lower five-dimensional adjustment bracket; 71. Lower PD probe; 72. Circular optical collimator; 8. Electric displacement platform; 81. Detection slot; 9. Optical power meter; 10. Electrical control box; 11. Display screen; 12. Isolator. Detailed Implementation

[0019] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0020] Example: like Figures 1-2 As shown, a light transmission performance testing device for the front-end lamination process of an isolator includes an optical flat plate 1 and a light source 2, the light source 2 being used to test the light transmission performance of the isolator 12.

[0021] Specifically, the optical plate 1 is equipped with an optical switching switch 3, an upper three-ring polarizer 4, a lower three-ring polarizer 5, an upper PD probe 61, a polarized light collimator 62, a lower PD probe 71, a circular light collimator 72, an electric displacement platform 8, and an optical power meter 9. Light emitted from the light source 2 passes sequentially through the optical switching switch 3, the detection optical path, and the optical power meter 9 via optical fiber. The detection optical path includes a parallel insertion loss detection branch and an isolation detection branch. The insertion loss detection branch includes the upper three-ring polarizer 4, the polarized light collimator 62, the isolator 12 to be tested, and the lower PD probe 71, connected in sequence. The isolation detection branch includes the lower three-ring polarizer 5, the circular light collimator 72, the isolator 12 to be tested, and the upper PD probe 61, connected in sequence. A detection slot 81 for placing the isolator 12 to be tested is provided on one side of the electric displacement platform 8.

[0022] In addition, the electrical control box 10 is equipped with a PLC and a display screen 11, and is electrically connected to the optical power meter 9, the optical switching switch 3, and the electric displacement platform 8. An upper five-dimensional adjustment bracket 6 and a lower five-dimensional adjustment bracket 7 are fixed on the optical flat plate 1, arranged side-by-side. An upper PD probe 61 and a polarizing collimator 62 are mounted on the upper five-dimensional adjustment bracket 6, and a lower PD probe 71 and a circular optical collimator 72 are mounted on the lower five-dimensional adjustment bracket 7. The detection heads of the upper PD probe 61 and the lower PD probe 71 are arranged opposite each other, and the electric displacement platform 8 is positioned between the upper PD probe 61 and the lower PD probe 71. The upper PD probe 61 and the lower PD probe 71 are electrically connected to the optical power meter 9.

[0023] In terms of model, display screen 11 is Xiamen Haiwei B10; PLC is Xiamen Haiwei T24S2P-e; optical power meter 9 is Shanghai Jia Hui 8103A; upper three-ring polarizer 4 and lower three-ring polarizer 5 are both mechanical three-ring polarizers; electric displacement platform 8 is Beijing Yingxun SLY6050-L.

[0024] The working principle of the optical transmission performance testing equipment for the front-end assembly process of isolators according to this utility model is as follows: The isolator 12 to be tested is placed in the testing slot 81 of the electric displacement platform 8. After the testing parameters are set through the display screen 11 of the electrical control box 10, the PLC automatically controls the electric displacement platform 8 to accurately position itself at the testing station. The testing light emitted by the light source 2 is switched to the corresponding branch channel by the PLC according to the testing mode (insertion loss / isolation) via the optical fiber guide light switching switch 3.

[0025] In insertion loss detection mode, the upper three-ring polarizer 4 adjusts the polarization state of the optical path, and the optimized beam formed by the polarization collimator 62 penetrates the isolator 12, is received by the lower PD probe 71, and transmitted to the optical power meter 9. In isolation detection mode, the lower three-ring polarizer 5, together with the circular collimator 72, adjusts the optical path, and the beam is captured by the upper PD probe 61 after penetrating the isolator 12. The large-size PD probe effectively eliminates optical scattering and refraction errors of the isolator 12, and the optical power meter 9 converts the photoelectric signal into a digital signal and feeds it back to the PLC to complete the optical transmission performance analysis.

[0026] The above embodiments are merely descriptions of preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope of the present utility model.

Claims

1. An optical performance detection device for isolator front-end splicing process, comprising an optical flat (1) and a light source (2) for detecting the optical performance of an isolator (12), characterized in that: The optical flat (1) is provided with a light switching switch (3), an upper three-ring polarizer (4), a lower three-ring polarizer (5), an upper PD probe (61), a polarized light collimator (62), a lower PD probe (71), a circular light collimator (72), a motorized displacement platform (8), and an optical power meter (9); the light emitted by the light source (2) passes through the light switching switch (3), a detection light path, and the optical power meter (9) in sequence through an optical fiber; the detection light path includes a plug-in loss detection branch and an isolation detection branch in parallel; the plug-in loss detection branch includes the upper three-ring polarizer (4), the polarized light collimator (62), the isolator (12) to be detected, and the lower PD probe (71) in sequence; the isolation detection branch includes the lower three-ring polarizer (5), the circular light collimator (72), the isolator (12) to be detected, and the upper PD probe (61) in sequence; one side of the motorized displacement platform (8) is provided with a detection groove (81) for placing the isolator (12) to be detected; and the electrical control box (10) is further included.

2. The device for detecting the light transmission performance of the isolator front-end hybrid process according to claim 1, characterized in that: The electrical control box (10) is provided with a PLC and a display screen (11), and the electrical control box (10) is electrically connected with the optical power meter (9), the light switching switch (3), and the motorized displacement platform (8).

3. The device for detecting the light passability of the isolator front-end hybrid process according to claim 1, characterized in that: The optical flat (1) is fixed with an upper five-dimensional adjustment support (6) and a lower five-dimensional adjustment support (7) arranged side by side; the upper five-dimensional adjustment support (6) is installed with the upper PD probe (61) and the polarized light collimator (62), and the lower five-dimensional adjustment support (7) is installed with the lower PD probe (71) and the circular light collimator (72).

4. The device for detecting the light passability of the isolator front-end hybrid process according to claim 1, characterized by: The detection heads of the upper PD probe (61) and the lower PD probe (71) are arranged opposite to each other, and the motorized displacement platform (8) is arranged between the upper PD probe (61) and the lower PD probe (71).

5. The device for detecting the light transmission performance of the isolator front-end hybrid process according to claim 1, characterized in that: The upper PD probe (61) and the lower PD probe (71) are electrically connected with the optical power meter (9) respectively.

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