Isolator assembly and optical communication equipment

Abstract

The utility model relates to the technical field of optical signal transmission, in particular to an isolator assembly and optical communication equipment. The isolator assembly comprises a metal tube, wherein a square hole is formed in the center of the metal tube; at least one communication unit, the unit cross section of each communication unit perpendicular to the extension direction of the square hole is consistent in size, the shape and the size of the unit cross section are matched with the hole cross section of the square hole perpendicular to the extension direction of the square hole, and at least one communication unit is a magnetic communication unit; the two magnetic parts are symmetrically attached to the outer wall of the metal pipe relative to the center of the square hole. According to the utility model, miniaturization of the isolator assembly can be realized, and the reliability of the isolator assembly is improved.

Description

Technical Field

[0001] This utility model relates to the field of optical signal transmission technology, and in particular to an isolator assembly and an optical communication device. Background Technology

[0002] In optical communication, in order to prevent the adverse effects of reverse-transmitted light caused by various reasons on the light source and optical path system, isolators are set in the optical path to achieve forward transmission and reverse isolation of light.

[0003] Currently, communication components used to achieve optical isolation are placed inside magnetic tubes. Since most communication components are square structures, while magnetic tubes are circular pipes, the geometric shapes of square and circular do not match, resulting in gaps between the communication components and the inner wall of the magnetic tube.

[0004] The presence of gaps reduces the mechanical stability of isolator components, increases the risk of displacement of communication elements under vibration or shock, and also leads to wasted space, thus limiting the miniaturization of isolator components. Utility Model Content

[0005] The technical problem to be solved by this utility model embodiment is to provide an isolator assembly and an optical communication device to solve the problems of displacement risk and difficulty in miniaturization of products in the prior art.

[0006] This utility model discloses an isolator assembly, comprising:

[0007] A metal tube, wherein a square hole is formed in the center of the metal tube;

[0008] At least one communication unit, wherein the cross-sectional size of each communication unit is consistent with the extension direction of the square hole, and the shape and size of the cross-section of the unit match the cross-section of the square hole perpendicular to its own extension direction, and at least one of the communication units is a magnetic communication unit;

[0009] Two magnetic components are symmetrically attached to the outer wall of the metal tube with respect to the center of the square hole.

[0010] Optionally, the outer wall of the metal tube includes a set of first side surfaces that are parallel to each other, and one set of first side surfaces is parallel to two opposite side walls of the square hole.

[0011] Optionally, the magnetic component includes a first plane, which is bonded together with the first side surface.

[0012] Optionally, the outer wall of the metal tube further includes at least one set of opposing first arcuate surfaces with the same curvature.

[0013] Optionally, the magnetic component further includes a second arcuate surface disposed opposite to the first plane, the second arcuate surface matching the first arcuate surface such that the outer contour of the component cross-section of the isolator assembly perpendicular to the extension direction of the metal tube is a perfect circle.

[0014] Optionally, the distance between the highest point of the second arcuate surface and the first plane is not less than 0.25 mm and not more than 0.3 mm.

[0015] Optionally, the distance between the first side and the sidewall of the nearest square hole is 0.1 mm.

[0016] Optionally, the length of the isolator assembly along the extension direction of the metal tube is 1 mm.

[0017] Optionally, the communication unit includes at least one wedge and at least one Faraday rotator.

[0018] This utility model also discloses an optical communication device, including at least one isolator component as described above.

[0019] Compared with the prior art, the beneficial effects of the isolator assembly provided by this utility model are as follows: the cross-sectional size of the communication unit perpendicular to the extension direction of the square hole is consistent with the cross-sectional size of the hole perpendicular to its own extension direction. This allows the communication unit to be smoothly installed into the square hole without requiring a large space for installation, making the isolator assembly more compact and contributing to its miniaturization. Furthermore, this application allows for bonding of the entire surface and / or eight corners of the communication unit to the metal tube, resulting in better bonding, a more stable connection, and improved reliability of the isolator assembly. Attached Figure Description

[0020] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and embodiments. In the accompanying drawings:

[0021] Figure 1 This is a schematic diagram of the structure of a metal tube in an embodiment of the isolator assembly provided in this application;

[0022] Figure 2 This is a cross-sectional schematic diagram of an embodiment of the metal tube in the isolator assembly provided in this application;

[0023] Figure 3 This is a schematic diagram of the communication unit placed inside the metal tube provided in this application;

[0024] Figure 4 This is a schematic diagram of the structure of an embodiment of the isolator assembly provided in this application;

[0025] Figure 5This is a schematic diagram of the bonding position of an embodiment of the communication unit provided in this application.

[0026] Figure 6 This is a schematic diagram of the bonding position of another embodiment of the communication unit provided in this application;

[0027] Figure 7 This is a cross-sectional schematic diagram of an embodiment of the isolator assembly provided in this application;

[0028] Figure 8 This is a schematic diagram of an embodiment of the optical communication device provided by the present invention.

[0029] The labels for the attached figures are as follows:

[0030] 10. Isolator assembly; 11. Metal tube; 111. Square hole; 112. First side surface; 113. First arc-shaped surface; 12. Communication unit; 13. Magnetic component; 131. First plane; 132. Second arc-shaped surface;

[0031] 20. Optical communication equipment. Detailed Implementation

[0032] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The preferred embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0033] Please see Figures 1-4 , Figure 1 This is a schematic diagram of the structure of a metal tube in an embodiment of the isolator assembly provided in this application. Figure 2 This is a cross-sectional schematic diagram of an embodiment of the metal tube in the isolator assembly provided in this application. Figure 3 This is a schematic diagram of the metal tube provided in this application after the communication unit has been placed inside. Figure 4 This is a schematic diagram of an embodiment of the isolator assembly provided in this application.

[0034] The isolator assembly 10 provided in this application includes a metal tube 11. The metal tube 11 can be made of aluminum, copper, or an alloy, and the metal material can be selected according to the actual hardness requirements. A square hole 111 is opened in the center of the metal tube 11. The square hole 111 extends through the entire metal tube 11 and is used to place at least one communication unit 12. The at least one communication unit 12 is a magnetic communication unit, that is, an optical element that requires the strength of an external magnetic field to control the polarization state and rotation angle of light.

[0035] Communication unit 12 may be a Faraday rotator and at least one wedge, in Figure 1In the illustrated scenario, the communication unit 12 comprises two wedges and a Faraday rotator, with the two wedges positioned on either side of the Faraday rotator. A wedge is an optical element typically used to separate light of different wavelengths or polarization states in an incident beam. It can cause light deflection; depending on the angle and material properties of the wedge, the beam can be separated into different polarization states or wavelengths. A Faraday rotator is an optical element utilizing the magneto-optical effect to alter the polarization state of light. By propagating a beam in a magnetic field, the Faraday rotator can rotate the polarization direction of the light, thereby achieving polarization control and optical isolation. Combining wedges and a Faraday rotator can achieve specific optical effects, such as forward input and reverse isolation of light, as described in this application.

[0036] To reduce the gap between the square hole 111 of the metal tube 11 and the communication unit 12, improve space utilization, and promote the miniaturization of the isolator assembly 10, each communication unit 12 has a uniform cross-sectional size perpendicular to the extension direction of the square hole 111. The cross-sectional area of ​​the square hole 111 along its own extension direction matches the size and shape of the unit cross-section; for example, they can be the same shape (e.g., square), and the size of the hole cross-section is slightly larger than the unit cross-section (e.g., the length and width of the hole cross-section are both 1.1 times the length and width of the unit cross-section). This allows the communication unit 12 to be smoothly placed in the square hole 111. The gap, where the hole cross-section is slightly larger than the unit cross-section, can be filled with adhesive, allowing the communication unit 12 to be bonded to the metal tube 11. Since the unit cross-section of the communication unit 12 matches the shape of the hole cross-section of the square hole 111, adhesive can be applied to at least two surfaces of the communication unit 12, allowing the entire surface of the communication unit 12 to be connected to the square hole 111, increasing the stability of the connection between the communication unit 12 and the metal tube 11.

[0037] In other implementation scenarios, adhesive can be applied to the eight corners of the communication unit 12, allowing it to bond to the eight inner corners of the square hole 111, thus increasing the stability of the connection between the communication unit 12 and the metal tube 11. In this embodiment, the square communication unit 12 matches the square hole 111, therefore, compared to a circular through hole, less space is needed for inserting the communication unit 12, and less adhesive can be used to achieve better stability. Please refer to [reference needed]. Figure 5 and Figure 6 , Figure 5 and Figure 6 This is a schematic diagram of the bonding position of the communication unit 12 provided in this application.

[0038] Faraday rotators require a magnetic field to function properly because they utilize the magneto-optical effect. This effect refers to the rotation of the polarization direction of light when it passes through a medium containing a magnetic material. This rotation is caused by the effect of the magnetic field on the charge in the medium. Therefore, the isolator assembly 10 also includes two magnetic elements 13 to provide the magnetic field required by the Faraday rotator.

[0039] In this embodiment, there are two magnetic components 13, which are symmetrically attached to the outer wall of the metal tube 11 with respect to the center of the square hole 111, thereby forming the magnetic field required for the operation of the Faraday rotator. The size and shape of the magnetic components 13 may be the same or different, but the magnetic force of both is the same, which can provide a symmetrical and balanced magnetic field for the Faraday rotator. In this embodiment, the two magnetic components 13 have the same shape and size, so that the isolator assembly 10 has a neater and more aesthetically pleasing appearance.

[0040] As described above, in this embodiment, the cross-sectional size of the communication unit 12 perpendicular to the extension direction of the square hole 111 is consistent with the cross-sectional size of the hole perpendicular to its own extension direction. This allows the communication unit 12 to be smoothly installed into the square hole without requiring a large space for installation, making the isolator assembly 10 more compact and contributing to its miniaturization. Furthermore, compared to a circular hole that can only bond the four edges of the communication unit 12, resulting in poor stability, this application allows bonding of the entire surface and / or eight corners of the communication unit 12 to the metal tube 11, resulting in better bonding, a more stable connection, and improved reliability of the isolator assembly 10.

[0041] In one implementation scenario, the outer wall of the metal tube 11 includes a set of mutually parallel first side surfaces 112, which are parallel to the two opposing inner walls of the square hole 111, that is, parallel to the two opposing surfaces (e.g., the top and bottom surfaces) of the communication unit 12. Such first side surfaces 112 are planar. The first side surfaces 112 are used to adhere the magnetic component 13.

[0042] To ensure the bonding effect between the magnetic component 13 and the metal tube 11, the magnetic component 13 includes a first plane 131. The shape and size of the first plane 131 are the same as or similar to those of the first side surface 112. Bonding the two planes together results in a stronger bonding effect.

[0043] The outer wall of the metal tube 11 includes four surfaces: two opposing first side surfaces 112 and two opposing first arc-shaped surfaces 113. The first arc-shaped surfaces 113 are convex, with the same curvature and length. The magnetic component 13 also includes a second arc-shaped surface 132 opposing the first plane 131. The second arc-shaped surface 132 matches the first arc-shaped surface 113, so that when the two magnetic components 13 are bonded to the outer wall of the metal tube 11, the outer contour of the isolator assembly 10's cross-section perpendicular to the extension direction of the metal tube 11 is a perfect circle. In other words, the isolator assembly 10 is a cylinder. A cylindrical shape is common and easy to integrate into various optical systems because it is symmetrical and regular, facilitating positioning and installation, reducing alignment and assembly problems during device installation, and making the isolator assembly 10 easier to combine and integrate with other optical elements or devices.

[0044] In one embodiment, please refer to the following: Figure 7 The distance h1 between the highest point of the second arc-shaped surface 132 and the first plane 131 is not less than 0.2 mm and not more than 0.3 mm. This ensures that the overall structure of the isolator assembly 10 can match the dimensions of most optical communication devices, making it easier to combine and integrate with other optical communication devices and avoiding assembly problems caused by size mismatch. It also ensures the bonding stability between the magnetic component 13 and the metal tube 11, preventing loosening or detachment during use, thereby improving the reliability and durability of the isolator assembly 10.

[0045] In one embodiment, the distance h2 between the first side 112 and the sidewall of the nearest square hole 111 is 0.1 mm, which can ensure the strength of the metal tube 11, prevent the metal tube 11 from being deformed by stress or pressure, and thus improve its durability and service life.

[0046] In one embodiment, the length L1 of the isolator assembly 10 along the extension direction of the metal tube 11 is 1 mm. That is, the length of the metal tube 11 along its extension direction is 1 mm, which can improve its compatibility with other components. The isolator assembly 10 can be better integrated with surrounding components, ensuring the stability and accuracy of the assembly.

[0047] Please combine participation Figure 8 , Figure 8This is a schematic diagram of an embodiment of the optical communication device provided by the present invention. This application also provides an optical communication device 20, which includes at least one isolator assembly 10 as described above. The compact structure of the isolator assembly 10 reduces the overall size of the optical communication device. With the reduction in the space occupied by the isolator assembly 10, the entire optical communication device 20 can be more compact, smaller in size, and easier to integrate into different systems, while also helping to reduce the weight of the device. The miniaturized optical communication device 20 is easier to carry and move, and is suitable for various scenarios and environments.

[0048] It should be understood that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Those skilled in the art can modify the technical solutions described in the above embodiments, or make equivalent substitutions for some of the technical features; and all such modifications and substitutions should fall within the protection scope of the appended claims of this utility model.

Claims

1. An isolator assembly, characterized in that, include: A metal tube, wherein a square hole is formed in the center of the metal tube; At least one communication unit, wherein the cross-sectional size of each communication unit is consistent with the extension direction of the square hole, and the shape and size of the cross-section of the unit match the cross-section of the square hole perpendicular to its own extension direction, and at least one of the communication units is a magnetic communication unit; Two magnetic components are symmetrically attached to the outer wall of the metal tube with respect to the center of the square hole.

2. The isolator assembly according to claim 1, characterized in that, The outer wall of the metal tube includes a set of first side surfaces that are parallel to each other, and one set of the first side surfaces is parallel to two opposite side walls of the square hole.

3. The isolator assembly according to claim 2, characterized in that, The magnetic component includes a first plane, and the first plane and the first side are bonded together.

4. The isolator assembly according to claim 3, characterized in that, The outer wall of the metal tube also includes at least one set of oppositely arranged first arc-shaped surfaces with the same curvature.

5. The isolator assembly according to claim 4, characterized in that, The magnetic component further includes a second arc-shaped surface disposed opposite to the first plane. The second arc-shaped surface matches the first arc-shaped surface so that the outer contour of the component cross-section of the isolator assembly perpendicular to the extension direction of the metal tube is a perfect circle.

6. The isolator assembly according to claim 5, characterized in that, The distance between the highest point of the second arc-shaped surface and the first plane is not less than 0.25 mm and not more than 0.3 mm.

7. The isolator assembly according to claim 2, characterized in that, The distance between the first side and the sidewall of the nearest square hole is 0.1 mm.

8. The isolator assembly according to claim 1, characterized in that, The length of the isolator assembly along the extension direction of the metal tube is 1 mm.

9. The isolator assembly according to claim 1, characterized in that, The communication unit includes at least one wedge and at least one Faraday rotator.

10. An optical communication device, characterized in that, It includes at least one isolator component as described in any one of claims 1-9.

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