Isolator assembly and optical communication equipment

Abstract

The utility model relates to the technical field of light, in particular to an isolator assembly and optical communication equipment. The isolator assembly comprises a metal tube, two protruding blocks are arranged on the inner wall of the metal tube, and the two protruding blocks are symmetrically arranged on the two sides of the inner wall of the metal tube relative to 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 metal tube is consistent in size and is matched with the gap between the two bumps, and at least one communication unit is a magnetic communication unit; and the two magnetic pieces are respectively arranged between the two convex blocks and the wall of the metal tube and are symmetrical relative to the center of the metal tube. 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 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 for optical isolation are placed inside magnetic tubes. Since most communication components are square structures, while magnetic tubes are circular pipes, the mismatch between the square and circular geometries results in a gap 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 component 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 two protrusions are provided on the inner wall of the metal tube, and the two protrusions are symmetrically arranged on both sides of the inner wall of the metal tube with respect to 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 metal tube and matches the gap between the two protrusions;

[0009] Two magnetic components are respectively disposed between the two protrusions and the metal tube wall, and are symmetrical with respect to the center of the metal tube.

[0010] Optionally, the two bumps are identical in size and shape.

[0011] Optionally, the two protrusions are flush with the first side of the inner wall of the metal tube;

[0012] One side of the magnetic component is an arched surface that fits against the inner wall of the metal tube, while the other side is a flat surface that fits against the first side of the two protrusions.

[0013] Optionally, the maximum vertical distance between the arched surface and the plane is not less than 0.25 mm and not more than 0.3 mm.

[0014] Optionally, the second sides of the two protrusions facing each other are rectangles of the same size and shape.

[0015] Optionally, the first side surfaces of both protrusions are rectangles of the same shape and size.

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

[0017] Optionally, the wall thickness of the metal tube is 0.1 mm.

[0018] Optionally, the communication element includes at least one wedge-shaped component and at least one Faraday rotation component.

[0019] This utility model also discloses an optical communication device, including at least one isolator component as described above.

[0020] Compared with the prior art, the beneficial effects of the isolator assembly provided in this embodiment are as follows: Two symmetrically arranged protrusions are added to the inner wall of the metal tube. The cross-sectional size of each communication unit perpendicular to the extension direction of the metal tube is consistent and matches the gap between the two protrusions. This allows the communication unit to be smoothly inserted into the gap and bonded to the side of the protrusion, eliminating the need for a large space for installation. This makes the isolator assembly more compact and contributes to its miniaturization. Furthermore, the bonding effect is better, the connection is more stable, and the reliability of the isolator assembly is improved. Two magnetic components are respectively disposed between the two protrusions and the metal tube wall, providing a symmetrical and uniform magnetic field for the communication unit to use. Attached Figure Description

[0021] 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:

[0022] 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;

[0023] Figure 2 This is a cross-sectional schematic diagram of an embodiment of the metal tube in the isolator assembly provided in this application;

[0024] Figure 3 This is a schematic diagram of the metal tube provided in this application after the communication element has been placed inside;

[0025] Figure 4 This is a schematic diagram of the structure of an embodiment of the isolator assembly provided in this application;

[0026] Figure 5 This is a cross-sectional schematic diagram of an embodiment of the isolator assembly provided in this application;

[0027] Figure 6 This is a schematic diagram of an embodiment of the optical communication device provided by the present invention.

[0028] The labels for the attached figures are as follows:

[0029] 10. Isolator assembly; 11. Metal tube; 111. Protrusion; 1111. First side surface; 1112. Second side surface; 12. Communication unit; 13. Magnetic component; 131. Arched surface; 132. Plane;

[0030] 20. Optical communication equipment. Detailed Implementation

[0031] 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.

[0032] 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 element has been placed inside. Figure 4 This is a schematic diagram of an embodiment of the isolator assembly provided in this application.

[0033] 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. The metal tube 11 has a hollow structure, and two protrusions 111 are provided on the inner wall of its hollow tube. The two protrusions 111 are symmetrically arranged on both sides of the inner wall of the metal tube 11 with respect to the center of the metal tube 11. The size and shape of the two protrusions 111 can be the same or different. The gap between the two protrusions 111 is used to accommodate a communication unit 12. 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.

[0034] 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.

[0035] To improve space utilization and promote miniaturization of the isolator assembly 10, each communication unit 12 has a uniform cross-sectional size perpendicular to the extension direction of the metal tube 11, and the cross-sectional size of the unit matches the gap between the two protrusions 111. This allows the communication unit 12 to be fixed within the metal tube 11 by adhesive bonding with the two protrusions 111 when placed inside the tube, without requiring a large amount of reserved space. Specifically, if the unit cross-section is square, the second side of the two protrusions 111 near the communication unit 12 is parallel to the side of the communication unit 12, and the spacing between the protrusions 111 is approximately equal to the width of the communication unit 12, for example, it can be 1.5 times the width of the communication unit 12.

[0036] Furthermore, to ensure a stable connection between the communication unit 12 and the metal tube 11, the two protrusions 111 are of the same size, and the second side of each protrusion 111 facing the communication unit 12 has the same shape and size as the side of the communication unit 12, or can be slightly larger than the side of the communication unit 12. This allows the entire side of the communication unit 12 to be coated with adhesive, resulting in a better bonding effect. For example, the first side 1111 of the two protrusions 111 is a rectangle of the same size and shape. This is because the side of the communication unit 12 is rectangular or trapezoidal, and after being combined, its side can also be rectangular or trapezoidal. Therefore, the rectangular surface can ensure that the side of the communication unit 12 can be connected to the protrusion 111 with adhesive to the greatest extent, effectively ensuring the connection effect.

[0037] 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.

[0038] In this embodiment, there are two magnetic components 13, symmetrically arranged with respect to the center of the metal tube 11, thereby providing a balanced magnetic field to the Faraday rotator. In this embodiment, the two magnetic components 13 are identical in shape and size, making the isolator assembly 10 more aesthetically pleasing.

[0039] As described above, in this embodiment, two symmetrically arranged protrusions are added to the inner wall of the metal tube. The cross-sectional size of each communication unit, perpendicular to the extension direction of the metal tube, is consistent and matches the gap between the two protrusions. This allows the communication unit to be smoothly inserted into the gap and bonded to the side of the protrusion, eliminating the need for a large space for installation. This makes the isolator assembly more compact and contributes to its miniaturization. Furthermore, the bonding effect is better, the connection is more stable, and the reliability of the isolator assembly is improved. Two magnetic components are respectively disposed between the two protrusions and the metal tube wall, providing a symmetrical and uniform magnetic field for the communication unit to use.

[0040] In one embodiment, the two protrusions 111 are flush with the first side surface 1111 of the inner wall of the metal tube 11. One side of the magnetic element 13 is an arched surface 131, which matches the curvature of the inner wall of the metal tube 11, so that the arched surface 131 can fit against the inner wall of the metal tube 11. The other side is a flat surface 132, which can fit against the side surface of the two protrusions 111. Adhesive is then applied to the arched surface 131 and the flat surface 132 so that the magnetic element 13 can be firmly bonded to the metal tube 11.

[0041] Furthermore, the first side surfaces 1111 of both protrusions 111 are rectangles of the same shape and size. After the communication unit 12 is inserted into the gap between the two protrusions 111, the top surface of the communication unit 12 and the first side surfaces 1111 of the two protrusions 111 facing the inner wall of the metal tube 11 are flush, and the bottom surface of the communication unit 12 and the other first side surfaces 1111 of the two protrusions 111 facing the inner wall of the metal tube 11 are flush. Two magnetic elements 13 are respectively disposed between the two protrusions 111 and the wall of the metal tube 11. In this way, when the magnetic elements 13 are inserted into the gap between the protrusions 111 and the wall of the metal tube 11, it can be ensured that there are no gaps between the components in the isolator assembly 10, and a stable connection between the components can be achieved, ensuring the reliability of the isolator assembly 10.

[0042] In one embodiment, please refer to the following: Figure 5The distance h1 between the highest point of the arched surface 131 and the plane 132 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.

[0043] In one embodiment, the thickness h2 of the metal tube 11 is 0.1 mm, which can ensure the strength of the metal tube 11 and prevent the metal tube 11 from deforming under stress or pressure, thereby improving its durability and service life.

[0044] In one embodiment, the length L1 of the isolator assembly 100 along the extending direction of the metal tube 11 is 1 mm. That is, the length of the metal tube 11 along its extending direction is 1 mm, which can improve its compatibility with other components. The isolator assembly 100 can better integrate with surrounding components, ensuring the stability and accuracy of the assembly.

[0045] Please combine participation Figure 6 , Figure 6 This 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 100 as described above. The compact structure of the isolator assembly 100 reduces the overall size of the optical communication device. With the reduction in the space occupied by the isolator assembly 100, 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.

[0046] 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 two protrusions are provided on the inner wall of the metal tube, and the two protrusions are symmetrically arranged on both sides of the inner wall of the metal tube with respect to the center of the metal tube; At least one communication unit, wherein each communication unit has a uniform cross-sectional size perpendicular to the extension direction of the metal tube and matches the gap between the two protrusions, and at least one of the communication units is a magnetic communication unit; Two magnetic components are respectively disposed between the two protrusions and the inner wall of the metal tube, and are symmetrical with respect to the center of the metal tube.

2. The isolator assembly according to claim 1, characterized in that, The two bumps are identical in size and shape.

3. The isolator assembly according to claim 2, characterized in that, The two protrusions are flush with the first side of the inner wall of the metal tube. One side of the magnetic component is an arched surface that fits against the inner wall of the metal tube, while the other side is a flat surface that fits against the first side of the two protrusions.

4. The isolator assembly according to claim 3, characterized in that, The maximum vertical distance between the arched surface and the plane is not less than 0.25 mm and not more than 0.3 mm.

5. The isolator assembly according to claim 3, characterized in that, The two protrusions have opposing second sides that are rectangles of the same size and shape.

6. The isolator assembly according to claim 5, characterized in that, The first side surfaces of both protrusions are rectangles of the same shape and size.

7. The isolator assembly according to claim 3, characterized in that, The length of the isolator assembly along the extension direction of the metal tube is 1 mm.

8. The isolator assembly according to claim 1, characterized in that, The wall thickness of the metal tube is 0.1 mm.

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

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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