Indirect time-sharing light conduction structure

Through indirect light-sharing optical transmission structure and position sensor monitoring, the problems of low equipment utilization and high cost in traditional laser spectrum testing are solved, and efficient and accurate testing of multi-laser spectrum analysis is achieved, which reduces costs and improves flexibility and efficiency.

CN223332594UActive Publication Date: 2025-09-12BEIJING LANXI HUAXING PHOTOELECTRIC TECH CO LTD
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Patent Information

Application Number
CN202422645061.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-10-30
Publication Date
2025-09-12
Estimated Expiration
2034-10-30

AI Technical Summary

Technical Problem

In traditional laser spectrum testing, each laser needs to be equipped with a spectrometer, resulting in low equipment utilization, high cost, limited testing flexibility and accuracy, especially in multi-band testing, where the operation is complex and the cycle is long.

Method used

An indirect time-sharing light transmission structure is adopted. The inner fiber head is driven by the driving component to move along the circumference so that it is aligned with the outer fiber head in sequence. A spectrometer is used to connect multiple lasers in series for spectral analysis. The position is monitored and the working status of the driving component is adjusted in combination with a position sensor.

Benefits of technology

It achieves efficient and accurate testing of multi-laser spectral analysis, reduces the number of spectrometers used, reduces costs, and improves testing flexibility and efficiency.

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Abstract

The utility model discloses an indirect time-sharing optical conduction structure, which comprises a casing, a mainboard, a plurality of first outer optical fiber heads, a second outer optical fiber head, a driving assembly, a first inner optical fiber head, a second inner optical fiber head and an optical fiber for connecting the first inner optical fiber head and the second inner optical fiber head, the first outer optical fiber heads are installed on the front end face of the main board at intervals along a circumferential line, the second outer optical fiber head is installed on the front end face of the main board and located in the center of the circumferential line, and the first inner optical fiber head and the second inner optical fiber head are installed on the driving assembly. The second inner optical fiber head and the second outer optical fiber head are always kept aligned, and the driving assembly is configured to drive the first inner optical fiber head to move along the circumferential line, so that the first inner optical fiber head is enabled to be sequentially aligned with the corresponding first outer optical fiber head and then kept for a preset time length. Only one spectrograph is needed to be connected in series with a plurality of lasers for spectral analysis testing, so that the number of used spectrographs is reduced, and the testing cost is reduced.
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Description

Technical Field

[0001] The utility model relates to the technical field of laser testing, in particular to an indirect light-sharing optical transmission structure. Background Art

[0002] Semiconductor lasers, with their excellent energy conversion efficiency and cost advantages, have demonstrated extremely high adaptability in fiber-optic communication systems. They can effectively achieve stable transmission of nominal power within optical fibers, thus meeting the stringent requirements of long-distance, high-speed communications. However, traditional laser spectrum testing uses a one-to-one model, where each laser is paired with a spectrometer. This not only increases the testing cost burden, but is also not cost-effective, especially in resource-constrained environments. In addition, when the laser is not in testing, its corresponding spectrometer is often idle, resulting in low equipment utilization.

[0003] More importantly, this one-to-one configuration limits test flexibility and accuracy. Differences in wavelength coverage and resolution between spectrometers can restrict the test range. Testing a laser's performance in multiple wavelength bands requires frequent spectrometer replacement, increasing operational complexity and extending test cycles.

[0004] Therefore, exploring more economical, efficient, flexible and diverse laser spectrum testing solutions is of great significance for improving testing efficiency, reducing costs and promoting the further development of optical fiber communication technology. Utility Model Content

[0005] The purpose of the utility model is to provide an indirect light-sharing optical transmission structure which can reduce costs and perform efficient testing.

[0006] To achieve the aforementioned objectives, the present invention adopts the following technical solutions: an indirect time-sharing light transmission structure, which includes a casing, a mainboard, a plurality of first external optical fiber heads, a second external optical fiber head, a drive assembly, a first internal optical fiber head, a second internal optical fiber head, and an optical fiber connecting the first internal optical fiber head and the second internal optical fiber head, the first external optical fiber heads are installed on the front end surface of the mainboard at intervals along a circular line, the second external optical fiber head is installed on the front end surface of the mainboard and is located at the center of the circular line, the first internal optical fiber head and the second internal optical fiber head are installed on the drive assembly, the second internal optical fiber head and the second external optical fiber head are always kept aligned, the drive assembly is installed on the casing, and the drive assembly is configured to drive the first internal optical fiber head to move along the circular line, so that the first internal optical fiber head is aligned with the corresponding first external optical fiber head in turn and then kept for a predetermined period of time.

[0007] As a further improvement, the mainboard and the housing form a storage space, and the drive assembly, the first inner optical fiber head and the second inner optical fiber head are located in the storage space.

[0008] As a further improvement, the housing includes a rear end wall opposite to the mainboard, and the drive assembly is installed on the rear end wall.

[0009] As a further improvement, the housing includes a bottom wall and two side walls, the bottom wall and the rear end wall are respectively connected between the two side walls, the lower end of the mainboard is fixed to the bottom wall, and the left and right ends are fixed to the side walls.

[0010] A further improvement is that the driving assembly includes a driving member, a rotating shaft, a swing arm and a connecting block fixed on the casing. The rotating shaft is horizontally arranged, one end is fixedly connected to the driving member, and the other end is fixedly connected to the swing arm through the connecting block. The first inner optical fiber head and the second inner optical fiber head are installed on the swing arm.

[0011] As a further improvement, the swing arm includes a first end and a second end opposite to each other, the first inner optical fiber head is installed at the first end, and the second inner optical fiber head is installed at the second end.

[0012] As a further improvement, the driving member is a motor.

[0013] A further improvement includes a position sensor installed on one side of the main substrate for continuously monitoring the position of the first inner optical fiber head.

[0014] The indirect light-sharing optical transmission structure of the utility model only requires one spectrometer to connect multiple lasers in series for spectrum analysis and testing, which not only saves the number of spectrometers used, reduces testing costs, and significantly reduces production costs, but also improves the flexibility and efficiency of testing. Through precise and ingenious mechanical control and optical alignment, it ensures that the spectrum of each laser can be accurately and efficiently tested and analyzed. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional diagram of the indirect light-sharing light transmission structure of the present invention.

[0016] Figure 2 This is a three-dimensional exploded view of the indirect light-sharing light transmission structure of the present invention.

[0017] Figure 3 This is a three-dimensional exploded view from another angle of the indirect light-sharing light transmission structure of the present invention. DETAILED DESCRIPTION

[0018] See also Figures 1 to 3As shown, the embodiment of the present invention discloses an indirect time-sharing light transmission structure 100, which includes a housing 10, a mainboard 20, a plurality of first outer optical fiber heads 31, a second outer optical fiber head 32, a drive assembly 40, a first inner optical fiber head 51, a second inner optical fiber head 52, an optical fiber 53 connecting the first inner optical fiber head 51 and the second inner optical fiber head 52, and a position sensor 60.

[0019] The housing 10 includes a bottom wall 11 , two opposite side walls 12 , and a rear end wall 13 . The bottom wall 11 and the rear end wall 13 are respectively connected between the two side walls 12 .

[0020] The motherboard 20 is a vertical plate-shaped structure, facing the rear end wall 13 front and back. The lower end of the motherboard 20 is fixed to the bottom wall 11, and the left and right ends are fixed to the side walls 12. In this way, the motherboard 20 and the housing 10 together enclose a storage space 15.

[0021] A plurality of first external optical fiber heads 31 are installed on the front end surface of the main board 20 at intervals along a circumferential line. A second external optical fiber head 32 is also installed on the front end surface of the main board 20 but is located at the center of the circumferential line.

[0022] The drive assembly 40 is fixed to the rear end wall 13 of the housing 10 and is located within the storage space 15. The rotating assembly 40 includes a drive member 41, a rotating shaft 42, a swing arm 43, and a connecting block 44. The drive member 41 is a motor fixed to the rear end wall 13. The rotating shaft 42 is arranged horizontally, with one end fixedly connected to the drive member 41 and the other end fixedly connected to the swing arm 43 through the connecting block 44. The swing arm 43 includes a first end 431 and a second end 432. The first inner fiber optic connector 51 is mounted on the first end 431, and the second inner fiber optic connector 52 is mounted on the second end 432. The first inner fiber optic connector 51 is aligned with the second outer fiber optic connector 32, enabling laser transmission from the second inner fiber optic connector 52 to the second outer fiber optic connector 32, achieving efficient and precise laser transmission. The swing arm 43 and connecting block 44 can be integrated or separate.

[0023] The position sensor 60 is installed on one side of the main board 20 and is located on the outside of the first inner optical fiber head 51. It is used to continuously monitor the precise position of the first inner optical fiber head 51 and feed back real-time position information to the system, thereby ensuring that the system can adjust the working status of the drive component 40 in real time.

[0024] During operation of the indirect light-sharing optical transmission structure 100 of the present invention, the driver 41 rotates the rotating shaft 42. The rotating shaft 42, through the linkage of the connecting block 44, leads the swing arm 43 to perform periodic, intermittent rotation, causing the first inner fiber heads 51 to align with the corresponding first outer fiber heads 31, and maintain this alignment for a predetermined period of time. Once the first inner fiber heads 51 and the first outer fiber heads 31 are aligned, the laser light emitted by the first outer fiber heads 31 first passes through the first inner fiber head 51, is then transmitted via the optical fiber 53 to the second inner fiber head 52, and is finally guided by the second outer fiber head 32 to the spectrometer for spectral measurement and analysis. This improves the automation level of the test and enhances the accuracy and efficiency of the spectral analysis.

[0025] The indirect light-sharing optical transmission structure 100 of the present invention only requires one spectrometer to connect multiple lasers in series for spectrum analysis testing, which not only saves the number of spectrometers used, reduces testing costs, and significantly reduces production costs, but also improves the flexibility and efficiency of testing. Through precise and ingenious mechanical control and optical alignment, it ensures that the spectrum of each laser can be accurately and efficiently tested and analyzed.

[0026] Although the preferred embodiments of the present invention have been disclosed for illustrative purposes, those skilled in the art will appreciate that various modifications, additions and substitutions are possible, without departing from the scope and spirit of the invention as disclosed in the accompanying claims.

Claims

1. An indirect light-sharing optical transmission structure, characterized in that: It includes a casing, a mainboard, several first external optical fiber heads, a second external optical fiber head, a drive assembly, a first internal optical fiber head, a second internal optical fiber head, and an optical fiber connecting the first internal optical fiber head and the second internal optical fiber head. The first external optical fiber heads are installed on the front end surface of the mainboard at intervals along a circular line, the second external optical fiber head is installed on the front end surface of the mainboard and is located at the center of the circular line. The first internal optical fiber head and the second internal optical fiber head are installed on the drive assembly, and the second internal optical fiber head and the second external optical fiber head are always kept aligned. The drive assembly is installed on the casing, and the drive assembly is configured to drive the first internal optical fiber head to move along the circular line, so that the first internal optical fiber head is aligned with the corresponding first external optical fiber head in turn and then kept for a predetermined period of time.

2. The indirect light-sharing optical transmission structure according to claim 1, wherein: The mainboard and the housing form a storage space, and the drive assembly, the first inner optical fiber head, and the second inner optical fiber head are located in the storage space.

3. The indirect light-sharing optical transmission structure according to claim 2, wherein: The housing includes a rear end wall opposite to the mainboard, and the driving assembly is installed on the rear end wall.

4. The indirect light-sharing optical transmission structure according to claim 3, wherein: The housing includes a bottom wall and two side walls. The bottom wall and the rear end wall are respectively connected between the two side walls. The lower end of the mainboard is fixed to the bottom wall, and the left and right ends are fixed to the side walls.

5. The indirect light-sharing optical transmission structure according to claim 1, wherein: The driving assembly includes a driving part, a rotating shaft, a swing arm and a connecting block fixed on the casing. The rotating shaft is arranged horizontally, one end of which is fixedly connected to the driving part, and the other end is fixedly connected to the swing arm through the connecting block. The first inner optical fiber head and the second inner optical fiber head are installed on the swing arm.

6. The indirect light-sharing optical transmission structure according to claim 5, wherein: The swing arm includes a first end and a second end opposite to each other, the first inner optical fiber head is mounted on the first end, and the second inner optical fiber head is mounted on the second end.

7. The indirect light-sharing optical transmission structure according to claim 5, wherein: The driving component is a motor.

8. The indirect light-sharing optical transmission structure according to claim 1, wherein: It also includes a position sensor installed on one side of the main body substrate, which is used to continuously monitor the position of the first inner optical fiber head.