Waveguide optical splitter

Abstract

The waveguide optical splitter comprises a main optical path extending in the transmission direction of a light source and a plurality of optical fibers arranged in the main optical path and used for transmitting the light source. The main light path is connected with a plurality of light splitting path groups, the main light path is formed by integrating one ends of a plurality of optical fibers, each light splitting path group is formed by grouping the other ends of the optical fibers according to different numbers, and the plurality of light splitting path groups are arranged around the axis of the main light path as the center; the number of the optical fibers in the light splitting path group is gradually increased from inside to outside in the radial direction of the main light path; compared with the prior art, the number of the optical fibers in the plurality of light splitting path groups is different, and the number of the optical fibers in the light splitting paths is gradually increased from inside to outside in the radial direction of the main light path. Therefore, the light intensity of the light source entering the plurality of light splitting path groups in the light splitter is uniformly distributed, the transmission uniformity of the light source is improved, and the transmission effect of the light source is improved.

Description

Technical Field

[0001] The present invention relates to the field of medical detection technologies, and particularly relates to a waveguide beam splitter for POCT. Background Art

[0002] A waveguide beam splitter is a device that realizes optical signal splitting or combining based on an optical waveguide structure, and is widely used in fields such as integrated optics, optical communication, and sensing.

[0003] In the field of POCT (Point-of-Care Testing), through its unique optical design and beam splitting function, a waveguide beam splitter can uniformly output light in a specific wavelength band generated by an optical module, thereby significantly improving the stability and accuracy of detection. In POCT optical detection (such as fluorescence, colorimetry, surface plasmon resonance, etc.), the uniformity of the optical signal directly affects the reproducibility and sensitivity of the detection results. For example: Avoiding signal deviation: Uneven light intensity distribution may lead to signal differences in different regions of the sample, especially introducing errors in trace detections (such as blood markers). Requirements for multi-index joint detection: Multi-wavelength detection (such as multi-channel fluorescence) requires different wavelength bands of light to uniformly cover the detection area to ensure that the signals of each index are independent and interference-free. Simplifying the calibration process: Uniform light output can reduce the device's dependence on complex calibration algorithms and is more suitable for primary medical scenarios.

[0004] Chinese Patent with application number 202411420786.2 discloses an optical module system for a POCT detection device. The disclosed optical module system includes a housing, in which a first optical path component, a second optical path component, a third optical path component, a fourth optical path component, a first dichroic mirror, and an optical fiber beam splitter are provided. The first optical path component and the second optical path component constitute a reflection mechanism, and the third optical path component and the fourth optical path component constitute a transmission mechanism. The optical path component includes a light source, a condenser lens, a filter, and a reflection unit arranged in sequence. The reflection unit in the first optical path component and the third optical path component is a mirror, and the reflection unit in the third optical path component and the fourth optical path component is a second dichroic mirror. Chinese Patent with application number 200510074191.7 discloses a waveguide beam splitter and a waveguide optical module including the waveguide beam splitter. In the disclosed waveguide beam splitter, an input waveguide, a plurality of output waveguides, and a planar waveguide are formed on a substrate. The planar waveguide has an input end and an output end. The output end is an arc centered on or near the input end. The input waveguide is connected to the input end, and the plurality of output waveguides are connected to the output end. At the central part of the output end, the output waveguide is directly connected to the output end. At the peripheral part of the output end, the output waveguide is connected to the output end through a tapered waveguide whose waveguide width widens towards the output end.

[0005] In the prior art disclosed above, the light source generated by the optical module is output through a splitter. Before the light source passes through the lens and then reaches the splitter, it has a Lambertian distribution. However, the light intensity of the Lambertian distribution is strong in the middle and weak at the edges. When the light is input into the splitter, the light intensity in the middle will be the highest and the light intensity on the outside will be the lowest, resulting in poor uniformity of the output light source. Summary of the Invention

[0006] The present invention is to overcome the defects in the above prior art and provide a waveguide splitter that can improve the uniformity of the output light source.

[0007] To achieve the above object of the invention, the present invention adopts the following technical solutions: A waveguide splitter includes a main optical path extending along the transmission direction of the light source and a plurality of optical fibers disposed in the main optical path for transmitting the light source; a plurality of sub-optical path groups are connected to the main optical path. The main optical path is formed by the aggregation of one ends of a plurality of optical fibers, and each sub-optical path group is formed by grouping the other ends of the optical fibers according to different quantities. The plurality of sub-optical path groups are arranged in a surrounding manner with the axis of the main optical path as the center; the number of optical fibers in the sub-optical path group increases sequentially from the inside to the outside along the radial direction of the main optical path.

[0008] As a preferred embodiment of the present invention, the sub-optical path group is composed of a plurality of sub-optical paths formed sequentially from the inside to the outside along the radial direction of the main optical path, and the number of optical fibers in each sub-optical path increases sequentially from the inside to the outside along the radial direction of the main optical path.

[0009] As a preferred embodiment of the present invention, the sub-optical path group is a first optical path structure connected to the main optical path for grouping and transmitting the light source.

[0010] As a preferred embodiment of the present invention, the first optical path structure includes a plurality of first sub-optical paths A and a plurality of second sub-optical paths A, and the first sub-optical paths A and the second sub-optical paths A are arranged sequentially from the inside to the outside along the radial direction of the main optical path.

[0011] As a preferred embodiment of the present invention, the number of optical fibers in the first sub-optical path A is less than the number of optical fibers in the second sub-optical path A.

[0012] As a preferred embodiment of the present invention, the first optical path structure includes a third sub-optical path A, a plurality of fourth sub-optical paths A, and a plurality of fifth sub-optical paths A, and the third sub-optical path A, the fourth sub-optical paths A, and the fifth sub-optical paths A are arranged sequentially from the inside to the outside along the radial direction of the main optical path.

[0013] As a preferred embodiment of the present invention, the number of optical fibers in the third sub-optical path A is less than the number of optical fibers in the fourth sub-optical path A, and the number of optical fibers in the fourth sub-optical path A is less than the number of optical fibers in the fifth sub-optical path A.

[0014] As a preferred embodiment of the present invention, the optical splitting path group is a second optical path structure connected to the main optical path and is used for grouping and transmitting light sources.

[0015] As a preferred embodiment of the present invention, the second optical path structure includes a first optical splitting path B, a plurality of second optical splitting paths B, a plurality of third optical splitting paths B, and a plurality of fourth optical splitting paths B. The first optical splitting path B, the second optical splitting paths B, the third optical splitting paths B, and the fourth optical splitting paths B are arranged in sequence from inside to outside along the radial direction of the main optical path.

[0016] As a preferred embodiment of the present invention, the number of optical fibers in the first optical splitting path B is less than the number of optical fibers in the second optical splitting path B, the number of optical fibers in the second optical splitting path B is less than the number of optical fibers in the third optical splitting path B, and the number of optical fibers in the third optical splitting path B is less than the number of optical fibers in the fourth optical splitting path B.

[0017] As a preferred embodiment of the present invention, the second optical path structure includes a plurality of fifth optical splitting paths B, a plurality of sixth optical splitting paths B, and a plurality of seventh optical splitting paths B. The fifth optical splitting paths B, the sixth optical splitting paths B, and the seventh optical splitting paths B are arranged in sequence from inside to outside along the radial direction of the main optical path.

[0018] As a preferred embodiment of the present invention, the number of optical fibers in the fifth optical splitting path B is less than the number of optical fibers in the sixth optical splitting path B, and the number of optical fibers in the sixth optical splitting path B is less than the number of optical fibers in the seventh optical splitting path B.

[0019] As a preferred embodiment of the present invention, it further includes a fixing sleeve. The main optical path is arranged in the fixing sleeve, and a plurality of optical splitting path groups penetrate out of the fixing sleeve. A fastener for bundling the plurality of optical splitting path groups is arranged in the fixing sleeve, and the fastener is arranged at the end of the optical splitting path group.

[0020] Compared with the prior art, the beneficial effects of the present invention are: 1. By providing a plurality of optical splitting path groups in the light source transmission direction, the plurality of optical splitting paths are arranged in a ring along the axial direction of the main optical path, and the number of optical fibers in the plurality of optical splitting path groups is different. The number of optical fibers in the optical splitting path increases sequentially from inside to outside along the radial direction of the main optical path. When the light source enters the optical splitter, since the number of optical fibers in the outer optical splitting path is more than that in the inner optical splitting path, the light intensity in the plurality of optical splitting path groups when the light source enters the optical splitter is evenly distributed, thereby improving the uniformity of light source transmission and the effect of light source transmission; 2. Further, by arranging the plurality of optical splitting paths in sequence from inside to outside along the radial direction of the main optical path, and the number of optical fibers in the optical splitting path increases sequentially from inside to outside, the number of optical fibers in the outer optical splitting path is increased. At the same time, the optical splitting paths in different layers in the same radial direction are combined to form an optical splitting path group, thereby forming a plurality of optical splitting path groups. The light source transmission intensity of each optical splitting path group is the same, thereby improving the uniformity of light source transmission; 3. Further, several light splitting paths form a light splitting path group. The light splitting path group is the first optical path structure or the light splitting path group is the second optical path structure. By setting the light splitting path group into different optical path structures, while ensuring uniform transmission of the light source, different usage requirements can be met, thereby improving the applicable range of the optical splitter. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a schematic structural diagram of the present invention; Figure 2 is a schematic structural diagram of Embodiment 1 of the present invention; Figure 3 is a schematic structural diagram of the optical path arrangement in Embodiment 1 of the present invention; Figure 4 is a schematic structural diagram of Embodiment 2 of the present invention; Figure 5 is a schematic structural diagram of the optical path arrangement in Embodiment 2 of the present invention; Figure 6 is a schematic structural diagram of Embodiment 3 of the present invention; Figure 7 is a schematic structural diagram of the optical path arrangement in Embodiment 3 of the present invention; Figure 8 is a schematic structural diagram of Embodiment 4 of the present invention; Figure 9 is a schematic structural diagram of the optical path arrangement in Embodiment 4 of the present invention Figure 10 is a schematic structural diagram of Embodiment 5 of the present invention; Figure 11 is a schematic structural diagram of the optical path arrangement in Embodiment 4 of the present invention Reference numerals: main optical path 1, optical fiber 2, light splitting path group 3, light splitting path 301, first optical path structure 302, first light splitting path A 3021, second light splitting path A 3022, third light splitting path A 3023, fourth light splitting path A 3024, fifth light splitting path A 3025, second optical path structure 303, first light splitting path B 3031, second light splitting path B 3032, third light splitting path B 3033, fourth light splitting path B 3034, fifth light splitting path B 3035, sixth light splitting path B 3036, seventh light splitting path B 3037, fixing sleeve 4, fastener 5. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] The following describes the embodiments of the present invention in detail with reference to the drawings.

[0023] As Figures 1 - 11As shown in the figure, an optical waveguide splitter includes a main optical path 1 extending along the light source transmission direction and a plurality of optical fibers 2 disposed in the main optical path 1 for transmitting the light source; a plurality of optical path groups 3 are connected to the main optical path 1 in the light source transmission direction. The main optical path 1 is formed by the aggregation of one ends of a plurality of optical fibers 2, and each optical path group 3 is formed by grouping the other ends of the optical fibers 1 according to different quantities. The plurality of optical path groups 3 are arranged in a surrounding manner with the axis of the main optical path 1 as the center; the number of optical fibers 2 in the optical path group 3 increases sequentially from the inside to the outside along the radial direction of the main optical path 1.

[0024] Furthermore, a plurality of optical fibers 2 are arranged in the main optical path 1. Before the light source is emitted from the light source generator, passes through the lens and then reaches the optical splitter, the plurality of optical fibers 2 receive and transmit the light source. One ends of the plurality of optical fibers 2 are aggregated to form the main optical path 1. The other ends of the plurality of optical fibers 2 in the main optical path 1 are grouped according to different quantities to form each optical path group 3. The light source is transmitted from the main optical path 1 to the optical path group 3. Since the light source is in a Lambertian distribution before entering the optical splitter, when the light source enters the optical splitter, the light source intensity in the middle is greater than that at the edge. Therefore, in order to ensure the uniform transmission of the light intensity, the number of optical fibers 2 in each optical path group 3 is different, that is, the number of optical fibers 2 in the middle optical path group 3 is less than the number of optical fibers 2 in the edge optical path group 3. Specifically, along the radial direction of the main optical path 1, the number of optical fibers 2 in each optical path group 3 gradually increases from the inside to the outside.

[0025] Embodiment 1: As Figures 2 - 3 shown in the figure, the optical path group 3 is composed of a plurality of optical paths 301 formed in sequence from the inside to the outside along the radial direction of the main optical path 1. The number of optical fibers 2 in each optical path 301 increases sequentially from the inside to the outside along the radial direction of the main optical path 1. Furthermore, in this embodiment, 8 optical path groups 3 are provided, and the 8 optical path groups 3 are arranged in a surrounding manner along the axial direction of the main optical path 1. Each optical path group 3 is provided with three circles from the inside to the outside along the radial direction of the main optical path 1, and each circle is provided with an optical path 301. The number of optical fibers 2 in the optical path 301 increases in an arithmetic progression, and the common difference is 1, that is, there is one optical fiber 2 in the optical path 301 of the first circle, two optical fibers 2 in the optical path 301 of the second circle, and three optical fibers 2 in the optical path 301 of the third circle. Therefore, by increasing the number of optical fibers 2 in the outer optical path 301, the light intensity of the outer circle is increased, and thus the light source intensity of each optical path group 3 can be evenly distributed.

[0026] To meet different usage requirements, other distribution methods can also be adopted to achieve uniform light intensity distribution. Specifically, the optical splitting path group is set as the first optical path structure 302 and the second optical path structure 303. Among them, 8 optical splitting paths are set in the first optical path structure 302, and 16 optical splitting paths are set in the second optical path structure 303. A number of optical splitting paths are arranged in a circumferential manner along the axial direction of the main optical path 1 and are set in several circles. The number of optical fibers 2 in each circle increases sequentially from the inside to the outside along the radial direction of the main optical path 1, and the increasing method is the same as that in the first embodiment. By increasing the number of optical fibers 2 in the outer optical splitting paths, the light intensity of the outer optical splitting paths is made the same as that of the inner optical splitting paths.

[0027] Embodiment 2: As Figures 4 - 5 shown, in this embodiment, the optical splitting path group is the first optical path structure 302 connected to the main optical path 1, which is used for grouping and transmitting light sources. 8 optical splitting paths are set in the first optical path structure 302.

[0028] Specifically, the first optical path structure 302 includes a number of first optical splitting paths A3021 and a number of second optical splitting paths A3022. The first optical splitting paths A3021 and the second optical splitting paths A3022 are arranged sequentially from the inside to the outside along the radial direction of the main optical path 1. Further, there are 3 first optical splitting paths A3021 and 5 second optical splitting paths A3022. The 3 first optical splitting paths A3021 are arranged in the middle, and the 5 second optical splitting paths A3022 are arranged around the first optical splitting paths A3021, that is, a 3 + 5 distribution structure is formed.

[0029] In addition, the number of optical fibers 2 in the first optical splitting paths A3021 is less than the number of optical fibers 2 in the second optical splitting paths A3022, and the diameter of the first optical path A3021 is smaller than the diameter of the second optical splitting paths A3022. When the light source enters the optical splitter, since the number of optical fibers 2 in the second optical splitting paths A3022 is greater than the number of optical fibers 2 in the first optical splitting paths A3021, that is, there is one optical fiber 2 in the first optical splitting paths A3021 and two optical fibers 2 in the second optical splitting paths A3022, the light intensity distribution of the light source in the entire optical splitter is made uniform, ensuring the effect of light source transmission.

[0030] Embodiment 3: As Figures 6 - 7 shown, in this embodiment, the optical splitting path group is the first optical path structure 302 connected to the main optical path 1, which is used for grouping and transmitting light sources. 8 optical splitting paths are set in the first optical path structure 302. The difference between this embodiment and the second embodiment lies in the distribution method of the 8 optical splitting paths.

[0031] Specifically, the first optical path structure 302 includes a third optical splitting path A3023, several fourth optical splitting paths A3024, and several fifth optical splitting paths A3025. The third optical splitting path A3023, the fourth optical splitting paths A3024, and the fifth optical splitting paths A3025 are arranged in sequence from the inside to the outside along the radial direction of the main optical path 1. Further, there is one third optical splitting path A3023, three fourth optical splitting paths A3024, and four fifth optical splitting paths A3025. The third optical splitting path A3023 is arranged in the middle, the three fourth optical splitting paths A3024 are arranged around the third optical splitting path A3023, and the four fifth optical splitting paths A3025 are arranged outside the fourth optical splitting paths A3024, that is, a distribution structure of 1 + 3 + 4 is formed.

[0032] In addition, the number of optical fibers 2 in the third optical splitting path A3023 is less than the number of optical fibers 2 in the fourth optical splitting paths A3024, and the number of optical fibers 2 in the fourth optical splitting paths A3024 is less than the number of optical fibers 2 in the fifth optical splitting paths A3025. Further, the diameter of the third optical splitting path A3023 is less than the diameter of the fourth optical splitting paths A3024, and the diameter of the fourth optical splitting paths A3024 is less than the diameter of the fifth optical splitting paths A3025. There is one optical fiber 2 in the third optical splitting path A3023, two optical fibers 2 in the fourth optical splitting paths A3024, and three optical fibers 2 in the fifth optical splitting paths A3025. Compared with Embodiment 2, by setting the distribution structure of 1 + 3 + 4, the light intensity of the light source can be distributed more evenly from the inside to the outside, further improving the effect of light source transmission, providing different distribution methods of optical splitting paths, and improving the applicable range of the optical splitter.

[0033] Embodiment 4: As Figures 8 - 9 shown, in this embodiment, the optical splitting path group is the second optical path structure 303 connected to the main optical path 1, which is used for grouping and transmitting the light source. Compared with Embodiment 2 and Embodiment 3, there are 16 optical splitting paths in the second optical path structure 303.

[0034] Specifically, the second optical path structure 303 includes a first beam splitting optical path B3031, a plurality of second beam splitting optical paths B3032, a plurality of third beam splitting optical paths B3033, and a plurality of fourth beam splitting optical paths B3034. The first beam splitting optical path B3031, the second beam splitting optical paths B3032, the third beam splitting optical paths B3033, and the fourth beam splitting optical paths B3034 are sequentially arranged from inside to outside along the radial direction of the main optical path 1. Further, there is 1 first beam splitting optical path B3031, 4 second beam splitting optical paths B3032, 5 third beam splitting optical paths B3033, and 6 fourth beam splitting optical paths B3034. The 1 first beam splitting optical path B3031 is arranged in the middle, the 4 second beam splitting optical paths B3032 are arranged around the first beam splitting optical path B3031, the 5 third beam splitting optical paths B3033 are arranged around the 4 second beam splitting optical paths B3032, and the 6 fourth beam splitting optical paths B3034 are arranged around the outermost side, that is, a distribution structure of 1 + 4 + 5 + 6 is formed.

[0035] In addition, the number of optical fibers 2 in the first beam splitting optical path B3031 is less than the number of optical fibers 2 in the second beam splitting optical paths B3032. The number of optical fibers 2 in the second beam splitting optical paths B3032 is less than the number of optical fibers 2 in the third beam splitting optical paths B3033. The number of optical fibers 2 in the third beam splitting optical paths B3033 is less than the number of optical fibers 2 in the fourth beam splitting optical paths B3034. Further, the diameter of the first beam splitting optical path B3031 is less than the diameter of the second beam splitting optical paths B3032. The diameter of the second beam splitting optical paths B3032 is less than the diameter of the third beam splitting optical paths B3033. The diameter of the third beam splitting optical paths B3033 is less than the diameter of the fourth beam splitting optical paths B3034. There is one optical fiber 2 arranged in the first beam splitting optical path B3031, two optical fibers 2 arranged in the second beam splitting optical paths B3032, three optical fibers 2 arranged in the third beam splitting optical paths B3033, and four optical fibers 2 arranged in the fourth beam splitting optical paths B3034. Compared with Embodiment 2 and Embodiment 3, in this embodiment, the number of outer ring beam splitting optical paths is increased, and at the same time, the uniformity of the light source transmission intensity is ensured through the distribution structure of 1 + 4 + 5 + 6, thereby meeting the usage requirements for different quantities and providing different distribution methods of the beam splitting optical paths, improving the applicable range of the beam splitter.

[0036] Embodiment 5: As Figures 10 - 11 shown, in this embodiment, the beam splitting optical path group is the second optical path structure 303 connected to the main optical path 1, which is used for grouping and transmitting the light source. There are 16 beam splitting optical paths arranged in the second optical path structure 303. Compared with Embodiment 4, the difference lies in the distribution structure of the 16 beam splitting optical paths.

[0037] Specifically, the second optical path structure 303 includes a number of fifth optical sub-paths B3035, a number of sixth optical sub-paths B3036, and a number of seventh optical sub-paths B3037. The fifth optical sub-paths B3035, the sixth optical sub-paths B3036, and the seventh optical sub-paths B3037 are arranged in sequence from the inside to the outside along the radial direction of the main optical path 1. Further, there are 3 fifth optical sub-paths B3035, 5 sixth optical sub-paths B3036, and 8 seventh optical sub-paths B3037. The 3 fifth optical sub-paths B3035 are arranged in the middle, the 5 sixth optical sub-paths B3036 are arranged around the fifth optical sub-paths B3035, and the 8 seventh optical sub-paths B3037 are arranged around the outside of the 5 sixth optical sub-paths B3036, that is, a distribution structure of 3 + 5 + 8 is formed.

[0038] In addition, the number of optical fibers 2 in the fifth optical sub-path B3035 is less than the number of optical fibers 2 in the sixth optical sub-path B3036, and the number of optical fibers 2 in the sixth optical sub-path B3036 is less than the number of optical fibers 2 in the seventh optical sub-path B3037. Further, the diameter of the fifth optical sub-path B3035 is less than the diameter of the sixth optical sub-path B3036, and the diameter of the sixth optical sub-path B3036 is less than the diameter of the seventh optical sub-path B3037. There is one optical fiber 2 in the fifth optical sub-path B3035, two optical fibers 2 in the sixth optical sub-path B3036, and three optical fibers 2 in the seventh optical sub-path B3037. By increasing the number of optical fibers 2 in the outer optical sub-paths and adopting a distribution structure of 3 + 5 + 8, the uniformity of the light source transmission intensity is improved, and different distribution methods of the optical sub-paths are provided, improving the applicable range of the optical splitter.

[0039] In addition, it further includes a fixing sleeve 4. The main optical path 1 is arranged in the fixing sleeve 4, and a number of optical path groups 3 pass out of the fixing sleeve 4. There is a fastener 5 for bundling a number of optical path groups 3 in the fixing sleeve 4. The fastener 5 is arranged at the end of the optical path group 3. Further, the fixing sleeve 4 is sleeved on the end of the main optical path 1. At the same time, the fixing sleeve 4 realizes the installation of the optical splitter on the optical module of the detection device. The fastener 5 is sleeved on a number of optical path groups 3, and the fastener 5 is located at the connection between the main optical path 1 and the optical path group 3, used to fix and tighten a number of optical path groups 3. The fastener 5 can adopt other fixing structures such as heat shrinkable tubes and strapping tapes, and it is preferred to use heat shrinkable tubes to fix a number of optical path groups 3.

[0040] It is also possible to adopt a different number and distribution structure of optical sub-paths from those in Embodiments 1 to 5, so as to meet different usage requirements for the number and distribution structure, etc.

[0041] The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the broadest scope consistent with the principles and novel features disclosed herein.

[0042] Although the terms such as the main optical path 1, optical fiber 2, optical splitting path group 3, optical splitting path 301, first optical path structure 302, first optical splitting path A 3021, second optical splitting path A 3022, third optical splitting path A 3023, fourth optical splitting path A 3024, fifth optical splitting path A 3025, second optical path structure 303, first optical splitting path B 3031, second optical splitting path B 3032, third optical splitting path B 3033, fourth optical splitting path B 3034, fifth optical splitting path B 3035, sixth optical splitting path B 3036, seventh optical splitting path B 3037, fixing sleeve 4, fastener 5 and the like are used more frequently herein, the possibility of using other terms is not excluded. These terms are used only to more conveniently describe and explain the essence of the present invention; any interpretation of them as any additional limitation is contrary to the spirit of the present invention.

Claims

1. An optical waveguide splitter, characterized in that It includes a main optical path (1) extending along the light source transmission direction and a number of optical fibers (2) disposed in the main optical path (1) for transmitting the light source; a number of optical splitting path groups (3) are connected to the main optical path (1) in the light transmission direction. The main optical path (1) is formed by the aggregation of one ends of a number of optical fibers (2). Each optical splitting path group (3) is constituted by grouping the other ends of the optical fibers (2) according to different quantities. A number of optical splitting path groups (3) are arranged in a surrounding manner with the axis of the main optical path (1) as the center; the number of optical fibers (2) within the optical splitting path group (3) increases sequentially from the inside to the outside along the radial direction of the main optical path (1).

2. The waveguide optical splitter according to claim 1, wherein The optical splitting path group (3) is a number of optical splitting paths (301) sequentially formed from the inside to the outside along the radial direction of the main optical path (1). The number of optical fibers (2) in each optical splitting path (301) increases sequentially from the inside to the outside along the radial direction of the main optical path (1).

3. The optical waveguide splitter according to claim 1, characterized in that, The optical splitting path group (3) is a first optical path structure (302) connected to the main optical path (1) for grouping and transmitting the light source.

4. A waveguide optical splitter according to claim 3, characterized in that, The first optical path structure (302) includes a number of first optical splitting paths A (3021) and a number of second optical splitting paths A (3022). The first optical splitting paths A (3021) and the second optical splitting paths A (3022) are sequentially arranged from the inside to the outside along the radial direction of the main optical path (1).

5. A waveguide optical splitter according to claim 4, characterized in that, The number of optical fibers (2) in the first optical splitting path A (3021) is less than the number of optical fibers (2) in the second optical splitting path A (3022).

6. The waveguide optical splitter according to claim 3, wherein The first optical path structure (302) includes a third optical splitting path A (3023), a number of fourth optical splitting paths A (3024) and a number of fifth optical splitting paths A (3025). The third optical splitting path A (3023), the fourth optical splitting paths A (3024) and the fifth optical splitting paths A (3025) are sequentially arranged from the inside to the outside along the radial direction of the main optical path (1).

7. A waveguide optical splitter according to claim 6, characterized in that, The number of optical fibers (2) in the third optical splitting path A (3023) is less than the number of optical fibers (2) in the fourth optical splitting path A (3024), and the number of optical fibers (2) in the fourth optical splitting path A (3024) is less than the number of optical fibers (2) in the fifth optical splitting path A (3025).

8. A waveguide optical splitter according to claim 1, characterized in that, The optical splitting path group (3) is a second optical path structure (303) connected to the main optical path (1) for grouping and transmitting the light source.

9. The optical waveguide splitter according to claim 8, wherein The second optical path structure (303) includes a first optical splitting path B (3031), a number of second optical splitting paths B (3032), a number of third optical splitting paths B (3033) and a number of fourth optical splitting paths B (3034). The first optical splitting path B (3031), the second optical splitting paths B (3032), the third optical splitting paths B (3033) and the fourth optical splitting paths B (3034) are sequentially arranged from the inside to the outside along the radial direction of the main optical path (1).

10. A waveguide optical splitter according to claim 9, characterized in that, The number of optical fibers (2) in the first optical splitting path B (3031) is less than the number of optical fibers (2) in the second optical splitting path B (3032), the number of optical fibers (2) in the second optical splitting path B (3032) is less than the number of optical fibers (2) in the third optical splitting path B (3033), and the number of optical fibers (2) in the third optical splitting path B (3033) is less than the number of optical fibers (2) in the fourth optical splitting path B (3034).

11. A waveguide optical splitter according to claim 8, characterized in that, The second optical path structure (303) includes a plurality of fifth optical sub-paths B (3035), a plurality of sixth optical sub-paths B (3036), and a plurality of seventh optical sub-paths B (3037). The fifth optical sub-paths B (3035), the sixth optical sub-paths B (3036), and the seventh optical sub-paths B (3037) are arranged in sequence from the inside to the outside along the radial direction of the main optical path (1).

12. The optical waveguide splitter according to claim 9, wherein, The number of optical fibers (2) in the fifth optical sub-path B (3035) is less than the number of optical fibers (2) in the sixth optical sub-path B (3036), and the number of optical fibers (2) in the sixth optical sub-path B (3036) is less than the number of optical fibers (2) in the seventh optical sub-path B (3037).

13. A waveguide optical splitter according to any one of claims 1-12, characterized in that, It further includes a fixing sleeve (4). The main optical path (1) is arranged in the fixing sleeve (4). A plurality of optical sub-path groups (3) pass through the fixing sleeve (4). A fastener (5) for bundling the plurality of optical sub-path groups (3) is arranged in the fixing sleeve (4), and the fastener (5) is arranged at the end of the optical sub-path group (3).

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