A waveguide device

Abstract

This utility model discloses a waveguide device, including a first connector and a second connector. The first connector includes a first base and a first cover plate. The first base has a first positioning groove for accommodating a multi-core optical fiber, which includes multiple fiber cores. The first cover plate is fixedly connected to the first base to fix the multi-core optical fiber. The second connector includes a second base and a second cover plate. The second base has multiple second positioning grooves, and the second cover plate has multiple third positioning grooves. The second cover plate is fixedly connected to the second base. Both the first and second positioning grooves accommodate a first optical fiber. The first connector and the second connector are fixedly connected, and the first optical fiber is optically connected to the fiber core, with a one-to-one correspondence between the first optical fiber and the fiber core. This waveguide device can replace coupling via an optical waveguide chip, improving production flexibility and shortening the research and development cycle.

Description

Technical Field

[0001] This utility model relates to the field of optical element technology, and in particular to a waveguide device. Background Technology

[0002] In related technologies, multi-core optical fibers, which possess multi-channel parallel transmission capabilities, have been widely used in fields such as space-division multiplexing communication, quantum information processing, and laser transmission. However, their signal transmission requires high-precision coupling with conventional single-core optical fibers. Existing technologies mainly rely on customized optical waveguide chips as signal conversion intermediaries between multi-core and single-core optical fibers. These chips need to be specifically designed based on the number of cores, spacing, and wavelength characteristics of the multi-core fiber, and signal routing is achieved through the optical waveguide structure. However, the customized design of optical waveguide chips is not only costly but also has a long customization cycle, making it difficult to flexibly adapt to the production and processing process. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a waveguide device that can replace coupling via optical waveguide chips, improving production flexibility and shortening the research and development cycle.

[0004] A waveguide device according to a first aspect of the present invention includes a first connector and a second connector. The first connector includes a first base and a first cover plate. The first base has a first positioning groove for accommodating a multi-core optical fiber, the multi-core optical fiber including multiple fiber cores. The first cover plate is fixedly connected to the first base to fix the multi-core optical fiber. The second connector includes a second base and a second cover plate. The second base has multiple second positioning grooves, and the second cover plate has multiple third positioning grooves. The second cover plate is fixedly connected to the second base. Both the first positioning groove and the second positioning groove accommodate a first optical fiber. The first connector and the second connector are fixedly connected, and the first optical fiber is optically connected to the fiber core, and the first optical fiber corresponds one-to-one with the fiber core.

[0005] A waveguide device according to an embodiment of the present invention has at least the following beneficial effects: A first base has a first positioning groove, a multi-core optical fiber is arranged in the first positioning groove, and a first cover plate is fixedly connected to the first base so that the first cover plate can press the multi-core optical fiber onto the first base. A second base has multiple second positioning grooves, and a second cover plate has multiple third positioning grooves. Multiple first optical fibers are respectively arranged in the second positioning grooves and the third positioning grooves, and the second cover plate is fixedly connected to the second base so that the multiple first optical fibers can be stably placed in the second connector, and each first optical fiber can correspond to a fiber core. By fixing the first connector and the second connector together, the first optical fiber and the fiber core can be mated and coupled, and the first optical fiber and the fiber core can achieve optical connection, thereby replacing coupling through an optical waveguide chip. This not only reduces production costs, but also allows for flexible adaptation to multi-core optical fibers of different specifications through the second connector, enhancing the versatility of the waveguide device.

[0006] According to some embodiments of the present invention, the first optical fiber is fused with a second optical fiber, the diameter of the first optical fiber is smaller than the diameter of the second optical fiber, and the first optical fiber and the second optical fiber are optically connected.

[0007] According to some embodiments of the present invention, the end of the multi-core optical fiber is configured as a first inclined surface, the end of the first optical fiber is configured as a second inclined surface, and the first inclined surface and the second inclined surface are connected.

[0008] According to some embodiments of the present invention, the end of the first connector is configured as a third inclined surface, and the end of the second connector is configured as a fourth inclined surface. The third inclined surface is coplanar with the first inclined surface, and the fourth inclined surface is coplanar with the second inclined surface.

[0009] According to some embodiments of the present invention, a first adhesive layer is provided between the first base and the first cover plate, and between the second base and the second cover plate.

[0010] According to some embodiments of the present invention, a second adhesive layer is provided between the first connector and the second connector.

[0011] According to some embodiments of this utility model, a protective tube is also included, with a first fixing adhesive provided at both ends of the protective tube to form an installation space. The first connector and the second connector are both arranged in the installation space, and the multi-core optical fiber and the first optical fiber are both inserted into the first fixing adhesive.

[0012] According to some embodiments of this utility model, a second fixing adhesive is provided in the middle of the installation space, and the second fixing adhesive connects the protective tube, the first connector and the second connector.

[0013] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein: Figure 1 This is a schematic diagram of the waveguide device according to an embodiment of the present invention; Figure 2 This is a cross-sectional view of the waveguide device according to an embodiment of the present invention; Figure 3 This is an exploded view of the waveguide device according to an embodiment of the present invention; Figure 4 This is a schematic diagram of the first connector of the waveguide device according to an embodiment of the present invention; Figure 5 for Figure 4 Enlarged view of a portion at point A; Figure 6 This is a schematic diagram of the second connector of the waveguide device according to an embodiment of the present invention; Figure 7 for Figure 6 A magnified view of section B.

[0015] Figure label: First connector 100, first base 110, first positioning groove 111, first cover plate 120, third inclined surface 130; Second connector 200, second base 210, second positioning groove 211, second cover plate 220, third positioning groove 221, fourth inclined surface 230; Protective tube 300, first fixing adhesive 310, installation space 320, second fixing adhesive 330; Multi-core optical fiber 410, fiber core 411, first inclined plane 412, first optical fiber 420, second optical fiber 421, second inclined plane 423. Detailed Implementation

[0016] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0017] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0018] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0019] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0020] Understandably, referring to Figures 1 to 7 This utility model discloses a waveguide device comprising a first connector 100 and a second connector 200. The first connector 100 includes a first base 110 and a first cover plate 120. The first base 110 has a first positioning groove 111 for accommodating a multi-core optical fiber 410, which includes multiple fiber cores 411. The first cover plate 120 is fixedly connected to the first base 110 to fix the multi-core optical fiber 410. The second connector 200 includes a second base 210 and a second cover plate 220. The second base 210 has multiple second positioning grooves 211, and the second cover plate 220 has multiple third positioning grooves 221. The second cover plate 220 is fixedly connected to the second base 210. Both the first positioning grooves 111 and the second positioning grooves 211 accommodate a first optical fiber 420. The first connector 100 and the second connector 200 are fixedly connected, and the first optical fiber 420 is optically connected to the fiber cores 411, with a one-to-one correspondence between the first optical fiber 420 and the fiber cores 411.

[0021] The first base 110 has a first positioning groove 111, and a multi-core optical fiber 410 is arranged in the first positioning groove 111. A first cover plate 120 is fixedly connected to the first base 110 so that the first cover plate 120 can press the multi-core optical fiber 410 tightly onto the first base 110. The second base 210 has multiple second positioning grooves 211, and the second cover plate 220 has multiple third positioning grooves 221. Multiple first optical fibers 420 are respectively arranged in the second positioning grooves 211 and the third positioning grooves 221, and the second cover plate 220 is fixedly connected to the second base 210 so that the multiple first optical fibers 420 can be stably located in the second connector 200, and each first optical fiber 420 can correspond to a fiber core 411. By fixing the first connector 100 and the second connector 200 together, the first optical fiber 420 and the fiber core 411 can be coupled together, enabling the first optical fiber 420 and the fiber core 411 to achieve optical connection. This can replace coupling through the optical waveguide chip, which not only reduces production costs, but also allows for flexible adaptation to multi-core optical fibers 410 of different specifications through the second connector 200, enhancing the versatility of waveguide devices.

[0022] In this configuration, a multi-core optical fiber 410 is positioned in the first positioning slot 111, and a first cover plate 120 is placed on the first base 110 to position the multi-core optical fiber 410. Multiple first optical fibers 420 are respectively positioned in the second positioning slot 211 and the third positioning slot 221, and a second cover plate 220 is placed on the second base 210 to position the multiple first optical fibers 420. The first connector 100 and the second connector 200 are fixedly connected. Through the cooperation of the second positioning slot 211 and the third positioning slot 221, the multiple first optical fibers 420 can correspond to the multiple fiber cores 411, thereby enabling optical connection between the first optical fibers 420 and the fiber cores 411, replacing coupling via an optical waveguide chip, and improving the versatility and flexibility of the connection.

[0023] It should be noted that the first connector 100 and the second connector 200 can be fixed together by means of adhesive, welding, fastener connection, etc., which will not be described in detail here.

[0024] Understandably, referring to Figure 3 and Figure 6 A first optical fiber 420 is fused with a second optical fiber 421. The diameter of the first optical fiber 420 is smaller than the diameter of the second optical fiber 421, and the first optical fiber 420 and the second optical fiber 421 are optically connected. By fusion-splicing the second optical fiber 421 with the first optical fiber 420, not only can the signal transmission path be extended, but the fusion method can also improve the stability of signal transmission between the first optical fiber 420 and the second optical fiber 421, achieve mode field conversion, reduce insertion loss, and improve the signal transmission quality and reliability of the entire waveguide device.

[0025] In addition, by setting the diameter of the first optical fiber 420 to be smaller than that of the second optical fiber 421, multiple first optical fibers 420 can be arranged in the second connector 200 at a higher density, thereby achieving high-density encapsulation and accommodating more specifications of multi-core optical fibers 410. This not only avoids the limitation of the diameter of the second optical fiber 421 on the optical connection with the multi-core optical fiber 410, but also facilitates connection with other optical components through the second optical fiber 421, reducing the difficulty of connection and improving connection stability.

[0026] Understandably, referring to Figures 4 to 7 The end of the multi-core optical fiber 410 is configured with a first inclined surface 412, and the end of the first optical fiber 420 is configured with a second inclined surface 423. The first inclined surface 412 and the second inclined surface 423 are connected. By configuring the end of the multi-core optical fiber 410 with the first inclined surface 412 and the end of the first optical fiber 420 with the second inclined surface 423, and connecting the first inclined surface 412 and the second inclined surface 423, the contact area between the fiber core 411 and the first optical fiber 420 is increased. This effectively reduces signal loss during the coupling process, making the optical signal transmission between the fiber core 411 of the multi-core optical fiber 410 and the first optical fiber 420 smoother, reducing signal reflection and scattering, and improving signal transmission efficiency.

[0027] Specifically, refer to Figures 4 to 7 The end of the first connector 100 is configured as a third inclined surface 130, and the end of the second connector 200 is configured as a fourth inclined surface 230. The third inclined surface 130 is coplanar with the first inclined surface 412, and the fourth inclined surface 230 is coplanar with the second inclined surface 423. By configuring the end of the first connector 100 as the third inclined surface 130 and the end of the second connector 200 as the fourth inclined surface 230, and making the third inclined surface 130 coplanar with the first inclined surface 412 and the fourth inclined surface 230 coplanar with the second inclined surface 423, after the first connector 100 and the second connector 200 are fixedly connected, the fiber core 411 can fit tightly with the first optical fiber 420, reducing the loosening of the connection caused by external vibration, thereby improving the reliability and stability of the waveguide device.

[0028] In addition, by setting the third inclined surface 130 to be coplanar with the first inclined surface 412, and the fourth inclined surface 230 to be coplanar with the second inclined surface 423, after the multi-core optical fiber 410 is fixed to the first connector 100 and the multiple first optical fibers 420 are fixed to the first connector 100, the entire first connector 100 and the entire second connector 200 can be polished, so that the first connector 100 and the multi-core optical fiber 410, as well as the second connector 200 and the multiple first optical fibers 420, can be polished synchronously. This not only improves the polishing accuracy, but also improves the connection stability of the first connector 100 and the second connector 200.

[0029] Understandably, referring to Figure 3A first adhesive layer (not shown in the attached drawings) is provided between the first base 110 and the first cover plate 120, and between the second base 210 and the second cover plate 220. The first adhesive layer ensures a firm and reliable connection between the first cover plate 120 and the first base 110, and between the second cover plate 220 and the second base 210, effectively preventing loosening or detachment due to external vibration, pulling, or other factors during use. This ensures the positional stability of the multi-core optical fiber 410 within the first connector 100 and the first optical fiber 420 within the second connector 200, avoiding signal transmission quality issues caused by optical fiber misalignment.

[0030] In addition, the first adhesive layer can fill the gap between the first base 110 and the first cover plate 120, as well as the gap between the second base 210 and the second cover plate 220, thereby improving the sealing effect of the first connector 100 and the second connector 200, preventing dust, moisture and other impurities from entering the interior, and improving the reliability of the waveguide device.

[0031] It should be noted that the first adhesive layer can be a photosensitive adhesive component, a hot melt adhesive component, etc., which will not be elaborated here.

[0032] Understandably, referring to Figure 3 A second adhesive layer (not shown in the attached figure) is provided between the first connector 100 and the second connector 200. This second adhesive layer tightly bonds the first connector 100 and the second connector 200 together, effectively preventing separation of the first connector 100 and the second connector 200 due to external vibrations, collisions, or pulling during use. This ensures the stability of the connection between the multi-core optical fiber 410 and the first optical fiber 420, improving the reliability of the waveguide device's signal transmission. Simultaneously, the second adhesive layer prevents dust, moisture, and other impurities from entering the connection area of ​​the first connector 100 and the second connector 200, reducing contamination and damage to the end faces of the multi-core optical fiber 410 and the first optical fiber 420, and further improving the reliability of the waveguide device.

[0033] It should be noted that the second adhesive layer can be made of photosensitive adhesive, hot melt adhesive, etc., which will not be elaborated here.

[0034] Understandably, referring to Figures 1 to 3The device also includes a protective tube 300, with first fixing adhesive 310 at both ends to form an installation space 320. A first connector 100 and a second connector 200 are both arranged within the installation space 320, and both the multi-core optical fiber 410 and the first optical fiber 420 pass through the first fixing adhesive 310. The two first fixing adhesives 310 are respectively arranged at both ends of the protective tube 300 to form the installation space 320. By arranging the first connector 100 and the second connector 200 within the installation space 320, good mechanical protection can be provided for the waveguide device, enhancing its resistance to external impacts and compression, preventing damage to the device due to collisions during use, and improving the durability and reliability of the waveguide device.

[0035] In addition, the multi-core optical fiber 410 and the first optical fiber 420 are both inserted into the first fixing adhesive 310, which can fix the position of the multi-core optical fiber 410 and the first optical fiber 420, reduce signal loss caused by bending and stretching, and avoid tensile stress between the first connector 100 and the second connector 200, so that the connection between the first connector 100 and the second connector 200 is stable.

[0036] It should be noted that the first fixing adhesive 310 can be a photosensitive adhesive component, a hot melt adhesive component, etc., and the protective tube 300 can be a metal component, a plastic component, etc., which will not be elaborated here.

[0037] Specifically, refer to Figures 1 to 3 A second fixing adhesive 330 is provided in the middle of the installation space 320, which connects the protective tube 300, the first connector 100, and the second connector 200. By providing the second fixing adhesive 330 in the middle of the installation space 320, the gap in the middle of the installation space 320 is filled, enhancing the tightness of the connection between the protective tube 300 and the first connector 100 and the second connector 200. This allows the second fixing adhesive 330 to fix the protective tube 300, the first connector 100, and the second connector 200 together, effectively preventing the first connector 100 and the second connector 200 from shaking or shifting within the protective tube 300. This ensures that the fiber core 411 and the first optical fiber 420 maintain precise alignment, improves the stability of signal transmission, reduces the possibility of signal attenuation and interruption caused by loosening, and improves the overall shock and vibration resistance of the waveguide device.

[0038] It should be noted that the second fixing adhesive 330 can be photosensitive adhesive parts, hot melt adhesive parts, etc., which will not be elaborated here.

[0039] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A waveguide device, characterized in that, include: The first connector includes a first base and a first cover plate. The first base has a first positioning groove for accommodating a multi-core optical fiber, which includes multiple fiber cores. The first cover plate is fixedly connected to the first base to fix the multi-core optical fiber. The second connector includes a second base and a second cover plate. The second base has multiple second positioning slots, and the second cover plate has multiple third positioning slots. The second cover plate is fixedly connected to the second base. The first positioning slot and the second positioning slot both accommodate a first optical fiber. The first connector is fixedly connected to the second connector, and the first optical fiber is optically connected to the fiber core, with a one-to-one correspondence between the first optical fiber and the fiber core.

2. The waveguide device according to claim 1, characterized in that, The first optical fiber is fused with a second optical fiber, the diameter of the first optical fiber is smaller than the diameter of the second optical fiber, and the first optical fiber and the second optical fiber are optically connected.

3. The waveguide device according to claim 1, characterized in that, The end of the multi-core optical fiber is configured as a first inclined surface, and the end of the first optical fiber is configured as a second inclined surface, with the first inclined surface and the second inclined surface being connected.

4. The waveguide device according to claim 3, characterized in that, The end of the first connector is configured as a third inclined surface, and the end of the second connector is configured as a fourth inclined surface. The third inclined surface is coplanar with the first inclined surface, and the fourth inclined surface is coplanar with the second inclined surface.

5. The waveguide device according to claim 1, characterized in that, A first adhesive layer is provided between the first base and the first cover plate, and between the second base and the second cover plate.

6. The waveguide device according to claim 1, characterized in that, A second adhesive layer is provided between the first connector and the second connector.

7. The waveguide device according to claim 1, characterized in that, It also includes a protective tube, both ends of which are provided with a first fixing adhesive to form an installation space. The first connector and the second connector are both arranged in the installation space, and the multi-core optical fiber and the first optical fiber are both inserted in the first fixing adhesive.

8. The waveguide device according to claim 7, characterized in that, A second fixing adhesive is provided in the middle of the installation space, and the second fixing adhesive connects the protective tube, the first connector and the second connector.

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