Anti-crosstalk multipath signal transmission silicon optical module

Abstract

An anti-crosstalk multipath signal transmission silicon optical module disclosed by the present invention comprises an optical fiber array and a silicon optical chip, the optical fiber array comprises a substrate, a cover plate and optical fibers, the upper surface of the substrate is provided with eight optical fiber channels which are distributed side by side, the input ends and the output ends of the eight optical fiber channels are arranged at the same intervals, and the silicon optical chip is arranged on the substrate. The two optical fiber channels located in the center are first optical fiber channels, the other optical fiber channels are second optical fiber channels, the first optical fiber channels are linear channels, and the second optical fiber channels are curve channels. The distance between the optical fibers in the adjacent optical fiber channels in the signal transmission process of the optical fibers is increased, signal transmission crosstalk among the multiple optical fibers in the optical fiber array is effectively reduced, and then crosstalk prevention of the multi-channel signal transmission silicon optical module is achieved.

Description

Technical Field

[0001] The present invention relates to the field of optical communications, and in particular to a crosstalk-proof multi-path signal transmission silicon optical module. Background Art

[0002] With the rapid growth of business needs such as data transmission and cloud computing, data centers with efficient server collaboration and data processing capabilities are carrying the rapidly growing total amount of information and information density requirements. Therefore, as the core functional device for optical interconnection and optical switching within data centers, high-speed optical modules are also bound to face the upgrade from low-speed to high-speed.

[0003] However, the current high-speed optical modules are not limited to single-channel signal transmission, which poses new challenges to the overall design and packaging of optical modules. In order to solve this problem, related technologies use fiber arrays or multi-core optical fibers to build silicon optical modules with multiple channels of internal signals in parallel, and transmit different channels of signals in different optical fibers to achieve signal separation.

[0004] Fiber Array (FA) is an array formed by mounting a bundle of optical fibers or an optical fiber ribbon on a substrate with a V-groove at a specified interval. The processing of the fiber array is that the exposed optical fiber portion with the optical fiber coating removed is placed in the V-groove, the pressurizer component presses the optical fiber portion, and adds adhesive to bond it, and finally grinds and polishes the surface to the required accuracy.

[0005] In traditional silicon photonic module solutions, the light ports of silicon photonic chips are usually arranged in a side-by-side array. When the spacing between the light port arrays of silicon photonic chips is set small, arranging the fiber array at the same spacing may cause excessive crosstalk between fibers, thus failing to guarantee the quality of the multi-channel signals inside the silicon photonic module. However, a smaller light port spacing is an inevitable choice to improve the integration of silicon photonic chips. Therefore, how to reduce the crosstalk between multi-channel fibers in the fiber array is a problem that must be faced in the multi-channel signal transmission silicon photonic module solution. Summary of the invention

[0006] The purpose of the present invention is to solve the problem in the prior art that, in order to improve the integration of silicon photonic chips, the spacing between the light outlet arrays of silicon photonic chips is set to be relatively small. Arranging the optical fiber array according to the same spacing will lead to excessive crosstalk between optical fibers, and the quality of multi-channel signals inside the silicon photonic module cannot be guaranteed. The present invention provides a multi-channel signal transmission silicon photonic module with anti-crosstalk.

[0007] In order to achieve the above-mentioned object of the invention, the present invention provides the following technical solutions: A crosstalk-proof multi-channel signal transmission silicon photonic module comprises an optical fiber array and a silicon photonic chip, characterized in that the optical fiber array comprises a substrate, a cover plate and an optical fiber, the upper surface of the substrate is provided with eight optical fiber channels distributed side by side, the input ends and output ends of the eight optical fiber channels are arranged at the same intervals, the two optical fiber channels located in the center are first optical fiber channels, and the other optical fiber channels are second optical fiber channels, the first optical fiber channel is a straight channel, and the second optical fiber channel is a curved channel, and one optical fiber is arranged in each of the optical fiber channels, the cover plate fixes the optical fiber in the optical fiber channel by covering and pressing the optical fiber, and the optical fiber array is coupled to the light output waveguide of the silicon photonic chip.

[0008] The present invention discloses a crosstalk-proof multi-channel signal transmission silicon photonic module, comprising an optical fiber array and a silicon photonic chip, wherein the optical fiber array comprises a substrate, wherein the upper surface of the substrate is provided with eight optical fiber channels arranged side by side, and the optical fiber channels are used to accommodate the laid optical fibers; the input ends of the eight optical fiber channels are arranged equidistantly, and the input ends are coupled to the light output waveguides of the silicon photonic chip; the optical fiber array can adapt to the silicon photonic chip with a smaller light output port array spacing; the output ends of the eight optical fiber channels are arranged equidistantly and the spacing is the same as the spacing of the input ends, so as to ensure that the output ends can be connected to the connector at the optical port end of the optical module; and the optical fiber array can realize the connection between the silicon photonic chip and the optical module. The coupling of the optical port; the two optical fiber channels located in the center are the first optical fiber channels, the first optical fiber channels are straight channels, and the other optical fiber channels are the second optical fiber channels, the second optical fiber channels are curved channels, each of the optical fiber channels is provided with an optical fiber, the cover plate fixes the optical fiber in the optical fiber channel by covering and pressing the optical fiber, the distance between the second optical fiber channel and the first optical fiber channel and between the second optical fiber channels is larger than the distance between the input end and the output end of the optical fiber channel, the distance between adjacent optical fiber channels is increased, and the signal transmission crosstalk between multiple optical fibers can be effectively reduced. A crosstalk-proof multi-channel signal transmission silicon photonic module of the present invention includes an optical fiber array, the optical fiber array sets the input end and the output end of the optical fiber channel to the same distance to meet the needs of silicon photonic chips with high integration and small spacing of light outlet arrays, the optical fiber array divides the optical fiber channel into a first optical fiber channel of a straight channel and a second optical fiber channel of a curved channel, increases the distance between optical fibers in the adjacent optical fiber channels during optical fiber transmission signal, effectively reduces the signal transmission crosstalk between multiple optical fibers in the optical fiber array, and thus realizes the crosstalk prevention of the multi-channel signal transmission silicon photonic module.

[0009] As a preferred embodiment of the present invention, the second optical fiber channels are arc channels and are all minor arcs. The center of each of the second optical fiber channels is located on the side of the second optical fiber channel close to the first optical fiber channel. The second optical fiber channels with such a structure ensure that the distance between the first optical fiber channel and the adjacent second optical fiber channels and the distance between adjacent second optical fiber channels can be greater than the spacing between the input and output ends of the optical fiber channels, effectively reducing the signal crosstalk of the optical fibers in the adjacent optical fiber channels.

[0010] As a preferred solution of the present invention, the arc lengths of the three second optical fiber channels located on the same side of the first optical fiber channel are all different, and the arc lengths of the three second optical fiber channels increase in the direction away from the first optical fiber channel. The second optical fiber channels are arranged in this way, that is, the spacing between adjacent second optical fiber channels increases in the direction away from the first optical fiber channel, which can better reduce the signal crosstalk of the optical fibers in the adjacent optical fiber channels.

[0011] As a preferred solution of the present invention, the two first optical fiber channels are parallel to each other and symmetrical about the symmetry axis, and the three second optical fiber channels on the left side of the first optical fiber channel and the three second optical fiber channels on the right side are symmetrical about the symmetry axis. The optical fiber array thus configured has a simple structure, can reduce the volume of the optical fiber array, is convenient for installation in a silicon photonic module, and is easy to manufacture.

[0012] As a preferred solution of the present invention, the angle between the tangent line of the two end points of the second optical fiber channel and the line connecting the two end points is less than or equal to 45 degrees. That is, the bending radius of the second optical fiber channel is limited to ensure that the optical fiber can achieve smooth bending, avoid large-angle deflection of the optical fiber at the input end and the output end, thereby reducing the optical performance of the optical fiber and affecting signal transmission.

[0013] As a preferred solution of the present invention, two cover plates are included, and the lower surface of the substrate is provided with eight fiber channels arranged side by side. The fiber channels on the upper and lower surfaces are staggered and do not overlap, and each fiber channel on the lower surface is provided with one fiber. The cover plate fixes the fiber in the fiber channel by covering and pressing the fiber. The upper and lower surfaces of the substrate are both provided with eight fiber channels, which is equivalent to combining two eight-channel fiber arrays into one fiber array, thereby improving the integration of the fiber array.

[0014] As a preferred solution of the present invention, the eight optical fibers arranged on one side of the substrate are TX optical fibers, and the eight optical fibers arranged on the other side of the substrate are RX optical fibers. The eight TX optical fibers are respectively coupled to the eight light-emitting waveguides of the silicon photonic chip, and the eight RX optical fibers are coupled to the multi-channel optical chip via a lens. By integrating the transmitting end optical fiber and the receiving end optical fiber into the same optical fiber array, the integration of the optical fiber array can be improved. When it is applied to a silicon photonic module, the optical fiber array only needs to be coupled once, which greatly simplifies the difficulty of coupling the optical fiber array and improves the coupling speed and production capacity of the optical fiber array.

[0015] As a preferred solution of the present invention, an isolation groove is provided between each adjacent optical fiber channel, and an optical signal isolation medium is fixedly provided in the isolation groove. An isolation medium with a low refractive index and a high absorption coefficient is inserted between the optical fiber channels to absorb or scatter the leaked optical signal, thereby suppressing signal crosstalk between optical fibers in adjacent optical fiber channels.

[0016] As a preferred solution of the present invention, the optical fiber channel is a V-shaped groove, a U-shaped groove or a rectangular groove, and a refractive index matching glue is filled between the optical fiber channel and the optical fiber. The optical fiber channel thus configured can accurately accommodate and position each optical fiber, ensuring the stability and accuracy of the optical fiber position during the packaging process; the refractive index matching glue is filled between the optical fiber and the substrate to reduce the reflection and scattering loss at the interface between the optical fiber and the substrate, and further fix the optical fiber position to prevent the optical fiber from being displaced during use.

[0017] As a preferred embodiment of the present invention, the substrate is made of ceramic material, and the cover plate is made of glass material. Ceramics have excellent insulation properties, which can effectively avoid electrical interference between different optical fiber channels in the optical fiber array and between the optical fiber and the external environment, and ensure the stability and accuracy of optical signal transmission; ceramics have high hardness and mechanical strength, which can provide effective support and protection for the optical fiber, so that it is not easy to shift, damage and other problems when subjected to external force impact, vibration and the like, and enhance the durability and anti-interference ability of the optical fiber array; the cover plate of glass material has good optical flatness and mechanical strength, which can protect the optical fiber from pollution and physical damage from the external environment, and ensure the normal transmission of the optical signal.

[0018] Compared with the prior art, the present invention has the following beneficial effects: 1. A crosstalk-proof multi-channel signal transmission silicon photonic module of the present invention comprises a fiber array, wherein the fiber array sets the input end and the output end of the fiber channel to the same spacing to meet the needs of a silicon photonic chip with a high integration and a small spacing light outlet array. The fiber array further divides the fiber channel into a first fiber channel as a straight channel and a second fiber channel as a curved channel, thereby increasing the spacing between the fibers during the fiber transmission signal process in adjacent fiber channels, thereby effectively reducing the signal transmission crosstalk between multiple optical fibers in the fiber array, and thus realizing crosstalk prevention of the multi-channel signal transmission silicon photonic module.

[0019] 2. Preferably, a crosstalk-proof multi-channel signal transmission silicon photonic module of the present invention can improve the integration of the optical fiber array by integrating the transmitting optical fiber and the receiving optical fiber into the same optical fiber array. When it is applied to the silicon photonic module, the optical fiber array only needs to be coupled once, which greatly simplifies the difficulty of optical fiber array coupling and improves the optical fiber array coupling speed and production capacity. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A schematic diagram of the three-dimensional structure of a crosstalk-proof multi-channel signal transmission silicon photonic module of the present invention; Figure 2 A side view of a crosstalk-proof multi-channel signal transmission silicon photonic module of the present invention; Figure 3 A schematic diagram of a three-dimensional structure of an embodiment of an optical fiber array of the present invention; Figure 4 A top view of an embodiment of an optical fiber array of the present invention; Figure 5 A front view of an embodiment of an optical fiber array of the present invention; Figure 6 A schematic diagram of a three-dimensional structure of another embodiment of an optical fiber array of the present invention; Figure 7 A top view of another embodiment of the optical fiber array of the present invention; Figure 8 It is a front view of another embodiment of the optical fiber array of the present invention.

[0021] Numbers in the figure: 1-optical fiber array, 11-substrate, 111-optical fiber channel, 112-first optical fiber channel, 113-second optical fiber channel, 114-isolation groove, 12-cover plate, 13-optical fiber, 2-silicon photonic chip, 3-multi-channel optical chip. DETAILED DESCRIPTION

[0022] The present invention is further described in detail below in conjunction with test examples and specific implementation methods. However, this should not be understood as the scope of the above subject matter of the present invention being limited to the following embodiments, and all technologies realized based on the content of the present invention belong to the scope of the present invention. Example

[0023] Embodiment 1, as Figures 1 to 8 As shown, a crosstalk-proof multi-channel signal transmission silicon photonic module includes an optical fiber array 1 and a silicon photonic chip 2. The optical fiber array 1 is used to achieve coupling between the silicon photonic chip 2 and the connector at the optical port end of the optical module. The optical fiber array 1 includes a substrate 11 and optical fibers 13. The upper surface of the substrate 11 is provided with eight optical fiber channels 111 distributed side by side. The optical fiber channels 111 are used to accommodate the optical fibers 13. The input ends of the eight optical fiber channels 111 are arranged equidistantly, and the input ends are coupled to the optical waveguides of the silicon photonic chip 2. The optical fiber array 1 can adapt to the silicon photonic chip 2 with a smaller optical port array spacing. The output ends of the eight optical fiber channels 111 are arranged equidistantly and the spacing is the same as the spacing of the input ends, ensuring that the output ends can be connected to the connector at the optical port end of the optical module. The optical fiber array 1 can achieve coupling between the silicon photonic chip 2 and the optical port; the two optical fiber channels located in the center The optical fiber channel 111 is a first optical fiber channel 112, and the other optical fiber channels 111 are second optical fiber channels 113. The first optical fiber channel 112 is a straight channel, and the second optical fiber channel 113 is a curved channel. The distance between the second optical fiber channel 113 and the first optical fiber channel 111 and between the second optical fiber channels 113 are larger than the distance between the input end and the output end of the optical fiber channel 111, thereby increasing the distance between adjacent optical fiber channels 111 and effectively reducing the signal transmission crosstalk between multiple optical fibers. The optical fiber array 1 also includes a cover plate 12, and each of the optical fiber channels 111 is provided with an optical fiber 13. The cover plate 12 fixes the optical fiber 13 in the optical fiber channel 111 by covering and pressing the optical fiber 13, thereby protecting the optical fiber 13 from pollution and physical damage from the external environment and ensuring the normal transmission of the optical signal.

[0024] Those skilled in the art can understand that the input end of the optical fiber channel 111 is coupled with the light output waveguide of the silicon photonic chip, so the input end of the optical fiber channel 111 should be arranged equidistantly and in the same arrangement as the light output waveguide of the silicon photonic chip, and the output end of the optical fiber channel 111 should be coupled with the optical port end of the silicon photonic module, so the output end of the optical fiber channel 111 should be arranged equidistantly and in the same arrangement as the optical port end of the silicon photonic module.

[0025] A crosstalk-proof multi-channel signal transmission silicon photonic module of the present invention comprises an optical fiber array 1. The optical fiber array 1 sets the input end and the output end of the optical fiber channel to the same spacing to meet the needs of a silicon photonic chip with a high integration and a small spacing light outlet array. The optical fiber array 1 further divides the optical fiber channel 111 into a first optical fiber channel 112 as a straight channel and a second optical fiber channel 113 as a curved channel, thereby increasing the spacing between optical fibers during optical fiber transmission signals in adjacent optical fiber channels, effectively reducing signal transmission crosstalk between multiple optical fibers in the optical fiber array 1, and thus achieving crosstalk-proof multi-channel signal transmission silicon photonic module. Example

[0026] Embodiment 2, as Figure 1 to Figure 2 , Figures 6 to 8 As shown, based on Example 1, this embodiment is further optimized and designed. Specifically, in this embodiment, the substrate 11 is made of ceramic material. Ceramics have excellent insulation properties and can effectively avoid electrical interference between different optical fiber channels in the optical fiber array and between the optical fiber and the external environment, thereby ensuring the stability and accuracy of optical signal transmission; ceramics have high hardness and mechanical strength, and can provide effective support and protection for the optical fiber, so that it is not easy to shift or be damaged when subjected to external force impact, vibration, etc., thereby enhancing the durability and anti-interference ability of the optical fiber array; the cover plate 12 is made of glass material, The cover plate 12 is fixed to the substrate 11 by glue or mechanical clamps to fix and protect the optical fiber. The cover plate made of glass material has good optical flatness and mechanical strength, which can not only protect the optical fiber from pollution and physical damage from the external environment, but also ensure the normal transmission of optical signals. Single-mode quartz optical fiber with low loss and low refractive index distribution unevenness is selected as the optical fiber 13. The core of the optical fiber 13 is a core with a gradient refractive index distribution. The refractive index gradually decreases from the center to the edge of the core. This distribution helps to reduce inter-modal dispersion, thereby reducing signal crosstalk caused by dispersion. The core diameter of the optical fiber 13 is 9 microns, the cladding diameter of the optical fiber 13 is 125 microns, and the numerical aperture is 0.14.

[0027] Further, the optical fiber channel 111 is a V-shaped groove, a U-shaped groove or a rectangular groove. The optical fiber channel 111 configured in this way can accurately accommodate and position each optical fiber 13, ensuring the stability and accuracy of the position of the optical fiber 13 during the packaging process. Specifically, in this embodiment, the optical fiber channel 111 is a V-shaped groove, the depth of the V-shaped groove is 50 microns, the width is 130 microns, and the angle is 60 degrees, which can accurately accommodate and position the optical fiber 13. The surface of the V-shaped groove is finely ground and polished, and the roughness is less than 10 nanometers, so as to reduce the scattering loss between the optical fiber 13 and the substrate 11.

[0028] Furthermore, a refractive index matching glue is filled between the optical fiber channel 111 and the optical fiber 13. Filling the refractive index matching glue between the optical fiber 13 and the substrate 11 can reduce the reflection and scattering loss at the interface between the optical fiber 13 and the substrate 11, and further fix the position of the optical fiber 13 to prevent the optical fiber 13 from being displaced during use. Specifically, in this embodiment, the refractive index of the refractive index matching glue is between 1.44 and 1.46, and the transmittance after curing is greater than 98%.

[0029] Furthermore, the second optical fiber channel 113 is an arc channel and is a minor arc. The center of each second optical fiber channel 113 is located on the side of the second optical fiber channel 113 close to the first optical fiber channel 112, that is, along the optical signal transmission direction, the second optical fiber channel 113 gradually bends from the input end and transitions to the output end. The second optical fiber channel 113 with such a structure ensures that the distance between the first optical fiber channel 112 and the adjacent second optical fiber channel 113 and the distance between adjacent second optical fiber channels 113 can be greater than the distance between the input end and the output end of the optical fiber channel, effectively reducing the signal crosstalk of the optical fiber in the adjacent optical fiber channel 111. Specifically, in this embodiment, the distance between the input end and the output end of the optical fiber channel 111 is 50 microns.

[0030] Furthermore, the arc lengths of the three second optical fiber channels 113 located on the same side of the first optical fiber channel 112 are all different, and the arc lengths of the three second optical fiber channels 113 increase in the direction away from the first optical fiber channel 112, that is, the spacing between adjacent second optical fiber channels 113 is also different. In the direction away from the first optical fiber channel 112, the spacing between adjacent second optical fiber channels 113 is increasing, which can better reduce the signal crosstalk of the optical fibers in the adjacent optical fiber channels 111.

[0031] Furthermore, the two first optical fiber channels 112 are parallel to each other and symmetrical about the symmetry axis, and the three second optical fiber channels 113 on the left side of the first optical fiber channel 112 and the three second optical fiber channels 113 on the right side are symmetrical about the symmetry axis. The optical fiber array thus configured has a simple structure, can reduce the volume of the optical fiber array, is convenient for installation in a silicon photonic module, and is easy to manufacture.

[0032] Those skilled in the art will appreciate that the optical fiber channel 111 may also be designed to be asymmetric, so that optical signals of different channels experience different path lengths during transmission, thereby reducing the coherence between optical signals and reducing the possibility of crosstalk. The asymmetric optical fiber channel 111 is included within the protection scope of the present invention.

[0033] Furthermore, the angle between the tangent line of the two end points of the second optical fiber channel 113 and the line connecting the two end points is less than or equal to 45 degrees. That is, the bending radius of the second optical fiber channel 113 is limited to ensure that the optical fiber 13 can achieve smooth bending, and avoid large-angle deflection of the optical fiber 13 at the input end and the output end, thereby reducing the optical performance of the optical fiber and affecting signal transmission.

[0034] Furthermore, an isolation groove 114 is provided between each adjacent optical fiber channel 111, and an optical signal isolation medium is fixedly provided in the isolation groove 114. An isolation medium with a low refractive index and a high absorption coefficient is inserted between the optical fiber channels 111 to absorb or scatter leaked optical signals, thereby suppressing signal crosstalk between optical fibers in adjacent optical fiber channels. Specifically, in this embodiment, the optical signal isolation medium is graphene oxide. Example

[0035] Embodiment 3, as Figures 3 to 5 As shown, based on Example 1, this example is further optimized and designed. Specifically, in this example, the substrate 11 is made of glass material, the cover plate 12 is made of glass material, the optical fiber 13 is a low-loss, high-stability quartz optical fiber, the core refractive index is about 1.46, and the optical fiber channel 111 is a rectangular groove.

[0036] Furthermore, in this embodiment, the second optical fiber channel 113 is an arc channel and is a minor arc. The center of each second optical fiber channel 113 is located on the side of the second optical fiber channel 113 close to the first optical fiber channel 112, and the arc length of each second optical fiber channel 113 is the same. Example

[0037] Embodiment 4, as Figures 1 to 8 As shown, based on Example 2 or Example 3, this embodiment is further optimized. Specifically, in this embodiment, two cover plates 12 are included. The lower surface of the substrate 11 is provided with eight fiber channels 111 distributed side by side. The fiber channels 111 provided on the upper and lower surfaces are staggered and do not overlap. Each fiber channel 111 on the lower surface is provided with one optical fiber 13. The cover plate 12 fixes the optical fiber 13 in the optical fiber channel 111 by covering and pressing the optical fiber 13. The eight optical fiber channels 111 are provided on the upper and lower surfaces of the substrate 11, which is equivalent to combining two eight-channel optical fiber arrays into one optical fiber array, thereby improving the integration of the optical fiber array.

[0038] Furthermore, the eight optical fibers 13 arranged on one side of the substrate 11 are TX optical fibers, and the eight optical fibers 13 arranged on the other side of the substrate 11 are RX optical fibers. The eight TX optical fibers are respectively coupled to the eight light-emitting waveguides of the silicon photonic chip 1, and the eight RX optical fibers are coupled to the multi-channel optical chip through lenses.

[0039] Those skilled in the art can understand that the traditional 800G DR8 silicon photonic module is equipped with one fiber array for transmission (TX) and one fiber array for reception (RX), so the number of fiber arrays of the 800G DR8 silicon photonic module is at least two, which makes coupling difficult. This embodiment can improve the integration of the fiber array 1 by integrating the transmitting end fiber (TX fiber) and the receiving end fiber (RX fiber) into the same fiber array. When it is applied to the silicon photonic module, the fiber array only needs to be coupled once, which greatly simplifies the difficulty of fiber array coupling and improves the fiber array coupling speed and capacity.

[0040] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A crosstalk-proof multi-channel signal transmission silicon photonic module, comprising an optical fiber array (1) and a silicon photonic chip (2), characterized in that: The optical fiber array (1) comprises a substrate (11), a cover plate (12) and an optical fiber (13); the upper surface of the substrate (11) is provided with eight optical fiber channels (111) arranged side by side; the input ends and output ends of the eight optical fiber channels (111) are arranged at the same interval; the two optical fiber channels (111) located in the center are first optical fiber channels (112); the other optical fiber channels (111) are second optical fiber channels (113); the first optical fiber channels (112) are straight channels; the second optical fiber channels (113) are curved channels; each optical fiber channel (111) is provided with an optical fiber (13); the cover plate (12) fixes the optical fiber (13) in the optical fiber channel (111) by covering and pressing the optical fiber (13); and the optical fiber array (1) is coupled with an optical waveguide of the silicon photonic chip (2).

2. The anti-crosstalk multi-channel signal transmission silicon photonic module according to claim 1, characterized in that: The second optical fiber channels (113) are arc channels and are all minor arcs, and the center of each second optical fiber channel (113) is located on a side of the second optical fiber channel (113) close to the first optical fiber channel (112).

3. The anti-crosstalk multi-channel signal transmission silicon photonic module according to claim 2, characterized in that: The arc lengths of the three second optical fiber channels (113) located on the same side of the first optical fiber channel (112) are all different, and the arc lengths of the three second optical fiber channels (113) increase in a direction away from the first optical fiber channel (112).

4. The crosstalk-proof multi-channel signal transmission silicon photonic module according to claim 3, characterized in that: The two first optical fiber channels (112) are parallel to each other and symmetrical about the symmetry axis, and the three second optical fiber channels (113) on the left side of the first optical fiber channel (112) and the three second optical fiber channels (113) on the right side are symmetrical about the symmetry axis.

5. The anti-crosstalk multi-channel signal transmission silicon photonic module according to claim 2, characterized in that: The angle between the tangent line of the two end points of the second optical fiber channel (113) and the line connecting the two end points is less than or equal to 45 degrees.

6. The crosstalk-proof multi-channel signal transmission silicon photonic module according to claim 2, characterized in that: The invention comprises two cover plates (12), the lower surface of the base plate (11) is provided with eight optical fiber channels (111) arranged side by side, the optical fiber channels (111) opened on the upper and lower surfaces are staggered and do not overlap, each optical fiber channel (111) on the lower surface is provided with an optical fiber (13), and the cover plate (12) fixes the optical fiber (13) in the optical fiber channel (111) by covering and pressing the optical fiber (13).

7. The anti-crosstalk multi-channel signal transmission silicon photonic module according to claim 6, characterized in that: The eight optical fibers (13) arranged on one side of the substrate (11) are TX optical fibers, and the eight optical fibers (13) arranged on the other side of the substrate (11) are RX optical fibers. The eight TX optical fibers are respectively coupled to the eight light output waveguides of the silicon photonic chip (1), and the eight RX optical fibers are coupled to the multi-channel optical chip via lenses.

8. The anti-crosstalk multi-channel signal transmission silicon photonic module according to claim 1, characterized in that: An isolation groove (114) is provided between each adjacent optical fiber channel (111), and an optical signal isolation medium is fixedly provided in the isolation groove (114).

9. The anti-crosstalk multi-channel signal transmission silicon photonic module according to claim 1, characterized in that: The optical fiber channel (111) is a V-shaped groove, a U-shaped groove or a rectangular groove, and a refractive index matching glue is filled between the optical fiber channel (111) and the optical fiber (13).

10. The crosstalk-proof multi-channel signal transmission silicon photonic module according to claim 1, characterized in that: The substrate (11) is made of ceramic material, and the cover plate (12) is made of glass material.

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