Magneto-optical switch and electronic device

Abstract

The utility model discloses a magneto-optical switch and an electronic device, and relates to the technical field of optical switches, the magneto-optical switch comprises a box body, a first double-fiber collimator, a second double-fiber collimator and an optical crystal; the first double-fiber collimator is arranged on the first side of the box body, one end of the first double-fiber collimator is arranged in the box body, and the other end extends out of the box body and is provided with a first input port and a second input port; the second double-fiber collimator is arranged on the second side of the box body, one end of the second double-fiber collimator is arranged in the box body, and the other end extends out of the box body and is provided with a first output port and a second output port; the optical crystal is arranged in the box body, connects the first double-fiber collimator with the second double-fiber collimator, is used for connecting the first input port with the first output port and connecting the second input port with the second output port during forward magnetization, and is used for connecting the first input port with the second output port during reverse magnetization. The second input port is connected with the first output port; according to the technical scheme provided by the utility model, the switching speed of the magneto-optical switch can be improved.

Description

Technical Field

[0001] This utility model relates to the field of optical switch technology, and in particular to a magneto-optical switch and electronic device. Background Technology

[0002] Currently, common mechanical optical switches typically use relays as the movable components to achieve optical path switching. Their switching speed can generally only reach the millisecond level, which is difficult to meet the needs of applications with higher switching speed requirements. Utility Model Content

[0003] The main purpose of this invention is to propose a magneto-optical switch and electronic device, which aims to improve the switching speed of the magneto-optical switch.

[0004] To achieve the above objectives, the present invention proposes a magneto-optical switch comprising:

[0005] The box has a first side and a second side opposite to each other along its length;

[0006] A first dual-fiber collimator is disposed on the first side. One end of the first dual-fiber collimator is disposed inside the housing, and the other end extends out of the housing and has a first input port and a second input port.

[0007] A second dual-fiber collimator is disposed on the second side. One end of the second dual-fiber collimator is disposed inside the housing, and the other end extends out of the housing and has a first output port and a second output port.

[0008] An optical crystal is disposed within the housing, connecting the first dual-fiber collimator and the second dual-fiber collimator. It is used to connect the first input port to the first output port and the second input port to the second output port during forward magnetization, and to connect the first input port to the second output port and the second input port to the first output port during reverse magnetization.

[0009] In one embodiment, the optical crystal includes a first optical device, a Faraday component, and a second optical device, wherein the first dual-fiber collimator is connected to the second dual-fiber collimator in sequence through the first optical device, the Faraday component, and the second optical device.

[0010] In one embodiment, the Faraday component is configured to connect the first input port to the first output port and the second input port to the second output port during forward magnetization, and to connect the first input port to the second output port and the second input port to the first output port during reverse magnetization.

[0011] In one embodiment, the first optical device includes a first beam-splitting crystal, a first glass slide, a first prism, a second glass slide, and a second beam-splitting crystal; the second optical device includes a third beam-splitting crystal, a third glass slide, a second prism, a fourth glass slide, and a fourth beam-splitting crystal; and the first dual-fiber collimator is connected to the second dual-fiber collimator in sequence via the first beam-splitting crystal, the first glass slide, the first prism, the second glass slide, the second beam-splitting crystal, the Faraday component, the third beam-splitting crystal, the third glass slide, the second prism, the fourth glass slide, and the fourth beam-splitting crystal.

[0012] In one embodiment, the first prism and / or the second prism are triangular blocks in shape.

[0013] In one embodiment, at least one of the first glass slide, the second glass slide, the third glass slide, and the fourth glass slide is square in shape.

[0014] In one embodiment, at least one of the first beam splitter crystal, the first glass slide, the first prism, the second glass slide, the second beam splitter crystal, the third beam splitter crystal, the third glass slide, the second prism, the fourth glass slide, and the fourth beam splitter crystal is fixed to the housing by an adhesive layer.

[0015] In one embodiment, the adhesive layer is a glue layer.

[0016] In one embodiment, the housing has a mounting port communicating with a cavity, and the optical crystal is mounted in the cavity;

[0017] The magneto-optical switch also includes a cover, which is disposed on the mounting port.

[0018] This invention also proposes an electronic device, including the magneto-optical switch described above.

[0019] The technical solution of this utility model involves placing an optical crystal inside a housing, which is connected to a first dual-fiber collimator and a second dual-fiber collimator located on both sides of the housing. The first dual-fiber collimator has two input ports, and the second dual-fiber collimator has two output ports. When the optical crystal is forward-magnetized, the optical signal is transmitted from the first input port to the first output port, and from the second input port to the second output port, achieving a direct connection. When reverse-magnetized, the optical signal path changes, and the first input port connects to the second output port, and the second input port connects to the first output port, achieving a cross connection. This magneto-optical switch controls the state switching of the optical crystal through a magnetic field, eliminating the need for traditional mechanical relays or other moving parts. This improves the switching speed to the microsecond or even nanosecond level, thereby meeting the application requirements for high-speed response optical switches. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of an embodiment of the magneto-optical switch provided by this utility model.

[0022] Explanation of icon numbers:

[0023] 100. Magneto-optic switch; 1. Housing; 101. Cavity; 11. First side; 12. Second side; 2. First dual-fiber collimator; 21. First input port; 22. Second input port; 3. Second dual-fiber collimator; 31. First output port; 32. Second output port; 4. Optical crystal; 41. First optical component; 411. First beam splitter crystal; 412. First glass slide; 413. First prism; 414. Second glass slide; 415. Second beam splitter crystal; 42. Faraday component; 43. Second optical component; 431. Third beam splitter crystal; 432. Third glass slide; 433. Second prism; 434. Fourth glass slide; 435. Fourth beam splitter crystal; 5. Cover.

[0024] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0026] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0027] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0028] An optical switch (OS) is a device with one or more selectable transmission windows, capable of converting optical signals in optical transmission lines or integrated optical circuits or performing logical operations. Its most basic form is a 1×2 structure, with one input port (one optical fiber) and two output ports (two optical fibers), enabling two connection states: straight-through connection and cross-connect (refracted) connection. Larger-scale space-division optical switching units can be constructed by cascading and combining basic 1×2 optical switches and corresponding 1×N optical switches. Optical switches play a crucial role in optical networks. Depending on their operating principles, optical switches can be implemented in various ways, including but not limited to: traditional mechanical optical switches, micromechanical optical switches, thermo-optical switches, liquid crystal optical switches, electro-optical switches, and acousto-optical switches. Among these, traditional mechanical optical switches, micromechanical optical switches, and thermo-optical switches are widely used in various application scenarios due to their unique performance characteristics.

[0029] Currently, common mechanical optical switches typically use relays as the movable components to achieve optical path switching. Their switching speed can generally only reach the millisecond level, which is difficult to meet the needs of applications with higher switching speed requirements.

[0030] To solve the above problems, this utility model proposes a magneto-optical switch 100.

[0031] Please see Figure 1 In one embodiment of this utility model, the magneto-optical switch 100 includes:

[0032] The box 1 has a first side 11 and a second side 12 opposite to each other along its length;

[0033] The first dual-fiber collimator 2 is located on the first side 11. One end of the first dual-fiber collimator 2 is located inside the housing 1, and the other end extends out of the housing 1 and has a first input port 21 and a second input port 22.

[0034] The second dual-fiber collimator 3 is located on the second side 12. One end of the second dual-fiber collimator 3 is located inside the housing 1, and the other end extends out of the housing 1 and has a first output port 31 and a second output port 32.

[0035] An optical crystal 4 is disposed inside the housing 1, connecting the first dual-fiber collimator 2 and the second dual-fiber collimator 3. It is used to connect the first input port 21 to the first output port 31 and the second input port 22 to the second output port 32 during forward magnetization, and to connect the first input port 21 to the second output port 32 and the second input port 22 to the first output port 31 during reverse magnetization.

[0036] In this embodiment, the housing 1 is a closed or semi-closed structure, which can be made of metal or high-strength non-magnetic material, used to house the optical crystal 4 and provide mechanical support and protection. The cross-sectional shape of the housing 1 can be a rectangle with a certain length or other regular shape. The housing 1 has a first side 11 and a second side 12 along its length, which are used to install the first dual-fiber collimator 2 and the second dual-fiber collimator 3, respectively. With the arrangement of the two sides, the optical signal can be input from one side and output from the other side, forming a clear optical path.

[0037] The first dual-fiber collimator 2 is disposed on the first side 11 of the housing 1. One end of it extends into the housing 1 and is connected to the input end of the optical crystal 4, while the other end extends out of the housing 1 and is provided with a first input port 21 and a second input port 22. The first dual-fiber collimator 2 is used to collimate the received optical signal before outputting it. The first dual-fiber collimator 2 can be implemented in many ways, for example, it may include a first optical fiber, a second optical fiber, and a first collimating lens. The first optical fiber corresponds to the aforementioned first input port 21, and the second optical fiber corresponds to the aforementioned second input port 22. The first and second optical fibers are used to guide the externally input optical signal to the first collimating lens. The first collimating lens is responsible for collimating the optical signal output from the first and second optical fibers before outputting it to the optical crystal 4. By setting the first dual-fiber collimator 2, not only can efficient coupling of the optical signal from the outside to the inside of the housing 1 be achieved, but also good collimation characteristics of the optical signal can be ensured before entering the optical crystal 4, thereby effectively reducing energy loss and improving the overall optical transmission efficiency. In addition, the first dual-fiber collimator 2 enables the magneto-optical switch 100 to simultaneously process optical signals input from the first and second optical fibers, thereby achieving more complex and flexible signal routing functions.

[0038] The second dual-fiber collimator 3 is disposed on the second side 12 of the housing 1. One end of it extends into the housing 1 and is connected to the output end of the optical crystal 4, while the other end extends out of the housing 1 and is provided with a first output port 31 and a second output port 32. The second dual-fiber collimator 3 is used to receive the optical signal output from the optical crystal 4, collimate it, and then output it. The second dual-fiber collimator 3 can be implemented in various ways. For example, it may include a third optical fiber, a fourth optical fiber, and a second collimating lens. The third optical fiber corresponds to the aforementioned first output port 31, and the fourth optical fiber corresponds to the aforementioned second output port 32. The second collimating lens is used to collimate the optical signal output from the optical crystal 4 so that the optical signal can propagate in free space and is finally focused and coupled into the third and fourth optical fibers. The optical signal is then transmitted to subsequent nodes or devices through the third and fourth optical fibers, thereby achieving effective routing and distribution of the optical signal.

[0039] An optical crystal 4 is housed within the housing 1 and positioned in the optical path between the first dual-fiber collimator 2 and the second dual-fiber collimator 3. Under the influence of an external magnetic field, the refractive index or polarization state of the optical crystal 4 changes, thereby modulating the propagation path of the optical signal. When a positive magnetic field is applied externally, a specific magnetization effect is generated within the optical crystal 4, maintaining the original propagation path of the optical signal within it. In this state, the optical signal from the first input port 21 can be directly transmitted to the first output port 31 via the optical crystal 4, and the same applies to the second input port 22. In this state, the magneto-optical switch 100 can achieve optical signal routing in "straight-through" mode, meeting the requirements of the optical network for a normal communication path and exhibiting advantages such as low insertion loss and high stability. However, when a reverse magnetic field is applied externally, the magnetization direction in the optical crystal 4 reverses, causing a change in the propagation path of the optical signal, resulting in deflection or switching. In this case, the optical signal originally from the first input port 21 will be guided to the second output port 32, and vice versa. In this case, the magneto-optical switch 100 implements optical signal routing in "cross" mode, completes the switching operation of optical signal path, and thus realizes the high-speed switching function of optical switch.

[0040] In summary, this embodiment achieves optical path switching by controlling the external magnetic field and thereby regulating the performance of the optical crystal 4. This structure enables the magneto-optical switch 100 to achieve a switching speed on the order of tens of microseconds, significantly superior to traditional mechanical optical switches. Furthermore, the entire switching process requires no mechanical moving parts, which not only improves the response speed of the magneto-optical switch 100 but also greatly enhances its operational reliability and lifespan.

[0041] Please see Figure 1In one embodiment, the optical crystal 4 includes a first optical device 41, a Faraday component 42, and a second optical device 43. The first dual-fiber collimator 2 is connected to the second dual-fiber collimator 3 in sequence through the first optical device 41, the Faraday component 42, and the second optical device 43.

[0042] The first dual-fiber collimator 2 is used to collimate the input optical signal and guide the collimated optical signal to the optical crystal 4. It is understood that the optical crystal 4 can be implemented in many ways. In this embodiment, the optical crystal 4 includes a first optical device 41, a Faraday component 42, and a second optical device 43. The first optical device 41 is located in the optical path between the first dual-fiber collimator 2 and the Faraday component 42, and is used to polarize the optical signal output from the first dual-fiber collimator 2, for example, as a polarizer, so that the optical signal incident on the Faraday component 42 has a polarization state. The Faraday component 42 is located in the optical path between the first dual-fiber collimator 2 and the second optical device 43. Based on the Faraday rotation effect, it changes the polarization direction of the optical signal passing through it under the action of an external magnetic field. The second optical device 43 is located in the optical path between the Faraday component 42 and the second dual-fiber collimator 3, and is used to perform further polarization processing or path selection on the optical signal modulated by the Faraday component 42, for example, as an analyzer or to further guide the optical path to the corresponding output port. The second dual-fiber collimator 3 is used to receive the optical signal output by the second optical device 43 and collimate it so that the optical signal can propagate in free space and is eventually focused and coupled into the first output port 31 or the second output port 32. Then, the optical signal is transmitted to subsequent nodes or devices through the first output port 31 and the second output port 32, thereby realizing the effective routing and distribution of the optical signal.

[0043] Please see Figure 1 In one embodiment, the Faraday component 42 is used to connect the first input port 21 to the first output port 31 and the second input port 22 to the second output port 32 during forward magnetization, and to connect the first input port 21 to the second output port 32 and the second input port 22 to the first output port 31 during reverse magnetization.

[0044] In this embodiment, the Faraday component 42 may be made of a material with magneto-optical effect (e.g., YIG, TGG, etc.) and placed in a magnetic field with controllable direction.

[0045] When a positive magnetic field (i.e., a magnetic field in a specific direction) is applied to the Faraday component 42, its internal magnetization direction is determined, causing the polarization state of the optical signal passing through the component to rotate by a fixed angle (e.g., 45°). At this time, the optical signal from the first input port 21 can be directly transmitted to the first output port 31 through the Faraday component 42, and the situation is similar for the second input port 22. In this state, the magneto-optical switch 100 can realize optical signal routing in "straight-through" mode, meeting the requirements of optical networks for normal communication paths and exhibiting advantages such as low insertion loss and high stability.

[0046] When a reverse magnetic field (i.e., the magnetic field direction is opposite to the positive direction) is applied to the Faraday component 42, its internal magnetization direction is reversed, which in turn causes the polarization rotation direction of the optical signal to also reverse (e.g., become -45°). At this time, the optical signal processed by the first optical device 41 is guided to different output ports due to the change in polarization state. As a result, the optical signal that should have entered the first output port 31 is guided to the second output port 32, and vice versa, thus achieving cross-connection. In this case, the magneto-optical switch 100 implements optical signal routing in "cross" mode, completing the switching operation of the optical signal path, thereby realizing the high-speed switching function of the optical switch. That is to say, the change in the polarization state of the optical signal can determine whether the subsequent second optical device 43 guides the optical signal to the first output port 31 or the second output port 32.

[0047] Please see Figure 1 In one embodiment, the first optical device 41 includes a first beam splitter crystal 411, a first glass slide 412, a first prism 413, a second glass slide 414, and a second beam splitter crystal 415. The second optical device 43 includes a third beam splitter crystal 431, a third glass slide 432, a second prism 433, a fourth glass slide 434, and a fourth beam splitter crystal 435. The first dual-fiber collimator 2 is connected to the second dual-fiber collimator 3 in sequence through the first beam splitter crystal 411, the first glass slide 412, the first prism 413, the second glass slide 414, the second beam splitter crystal 415, the Faraday component 42, the third beam splitter crystal 431, the third glass slide 432, the second prism 433, the fourth glass slide 434, and the fourth beam splitter crystal 435.

[0048] It is understood that the first optical device 41 can be implemented in various ways. In this embodiment, the first optical device 41 may include a first beam-splitting crystal 411, a first glass slide 412, a first prism 413, a second glass slide 414, and a second beam-splitting crystal 415. The first beam-splitting crystal 411 serves as a first polarization beam-splitting crystal, such as a first polarization beam-splitting prism or a first calcite crystal. Its function is to decompose each optical signal input from the first dual-fiber collimator 2 into two optical signals with orthogonal polarization directions (such as TE mode or TM mode), thereby achieving polarization separation of the input optical signal. This allows subsequent components to process optical signals with different polarization states separately, enhancing the polarization control capability of the magneto-optical switch 100. The first glass slide 412 can be made of a transparent dielectric material, such as glass or quartz, and is used to delay the phase of the optical signal output from the first beam-splitting crystal 411, for example, converting a linearly polarized optical signal into an elliptically polarized optical signal or changing the direction of the linearly polarized light. The main function of the first glass slide 412 is to provide optical path compensation and matching, reduce interface reflection loss, and improve optical signal transmission efficiency. The first prism 413, which can be a right-angle prism or other types of reflective / refractive prisms, is responsible for adjusting the propagation direction of the light signal output from the first glass plate 412, assisting in the directional guidance of the light signal path, and facilitating subsequent processing of light signals with different polarization states. Similar to the first glass plate 412, the second glass plate 414 is also made of a transparent dielectric material, mainly used to provide physical isolation and maintain the consistency of the optical path, avoiding reflection or loss problems caused by air gaps. The second beam-splitting crystal 415, as the second polarization beam-splitting crystal, such as a second polarization beam-splitting prism or a second calcite, is tasked with recombining the four modulated light signals into two light signals before outputting them to the Faraday component 42.

[0049] When a magnetic field in the first direction is applied to the Faraday component 42, its magnetization direction changes to the second direction, causing the polarization state of the light signal passing through it to rotate by a fixed angle (e.g., 45°). In this state, the light signal from the first input port 21, after being polarized by the first optical device 41, can be directly transmitted to the first output port 31 through the synergistic effect of the Faraday component 42 and the second optical device 43; similarly, the light signal from the second input port 22 can also be transmitted to the second output port 32, achieving a "straight-through" connection. When a third magnetic field opposite to the first direction is applied to the Faraday component 42, its magnetization direction reverses to the fourth direction, causing the rotation direction of the polarization state of the light signal to also reverse (e.g., -45°). At this time, the light signal from the first input port 21, after being processed by the first optical device 41, is guided to the second output port 32 through the action of the Faraday component 42 and the second optical device 43; correspondingly, the light signal from the second input port 22 is guided to the first output port 31, thereby achieving a "cross-connection".

[0050] Similarly, the second optical device 43 can be implemented in various ways, including a third beam-splitting crystal 431, a third glass plate 432, a second prism 433, a fourth glass plate 434, and a fourth beam-splitting crystal 435. The third beam-splitting crystal 431, acting as a third polarization beam-splitting crystal (such as a third polarization beam-splitting prism or third quartz), receives the optical signal output from the Faraday component 42 and decomposes it into two optical signals with different polarization states. Due to the influence of the Faraday component 42, the beam-splitting direction of the third beam-splitting crystal 431 differs from that of the first beam-splitting crystal 411. The third glass plate 432 uses a transparent medium material (such as glass or quartz) to adjust the polarization state of the optical signal output from the third beam-splitting crystal 431, preparing for subsequent spatial deflection. The second prism 433 further deflects these signals according to the polarization state of the optical signal output from the third glass plate 432, but due to the action of the Faraday component 42, its deflection direction differs from that of the first prism 413. The fourth glass plate 434 further adjusts the polarization state of the optical signal output from the second prism 433, preparing for final beam combining. Finally, the fourth beam splitter crystal 435, as the fourth polarization beam splitter crystal (such as the fourth polarization beam splitter prism or the fourth calcite), recombines the four optical signals into two. However, due to the non-reciprocity of the Faraday component 42, the two optical signals propagate in only one direction to the second dual-fiber collimator 3, which recouples them to the first output port 31 and the second output port 32, thereby realizing the directional optical signal transmission from input to output.

[0051] Please see Figure 1 In one embodiment, the first prism 413 and / or the second prism 433 are triangular blocks.

[0052] It is understandable that only the first prism 413 can be triangular; or only the second prism 433 can be triangular; or both the first prism 413 and the second prism 433 can be triangular. The term "triangular block" refers to a prism structure with a triangular cross-section, i.e., a triangular prism. In this embodiment, both the first prism 413 and the second prism 433 are triangular, used to directionally guide or further separate the polarized light signal modulated by the corresponding waveplate. For example, in the first optical device 41, the light signal from the first dual-fiber collimator 2 enters the first prism 413 after passing through the first beam-splitting crystal 411 and the first waveplate 412. The first prism 413 uses its inclined plane refraction or total internal reflection characteristics to guide the light signal along a specific path to match the incident angle requirements of the subsequent Faraday component 42. Similarly, the second prism 433 plays a similar role in the second optical device 43, used to optimize the propagation direction of the light signal output from the Faraday component 42, ensuring accurate coupling to the corresponding output port.

[0053] Please see Figure 1In one embodiment, at least one of the first glass slide 412, the second glass slide 414, the third glass slide 432, and the fourth glass slide 434 is square in shape.

[0054] It is understandable that only one of the first glass slide 412, the second glass slide 414, the third glass slide 432, and the fourth glass slide 434 may be square in shape; or only two of the first glass slide 412, the second glass slide 414, the third glass slide 432, and the fourth glass slide 434 may be square in shape, such as the first glass slide 412 and the second glass slide 414; or only three of the first glass slide 412, the second glass slide 414, the third glass slide 432, and the fourth glass slide 434 may be square in shape, such as the first glass slide 412, the second glass slide 414, and the third glass slide 432; or all of the first glass slide 412, the second glass slide 414, the third glass slide 432, and the fourth glass slide 434 may be square in shape. In this embodiment, the first glass plate 412, the second glass plate 414, the third glass plate 432, and the fourth glass plate 434 are all block-shaped, that is, their shapes are regular cubes or rectangular blocks with flat incident and exit surfaces. This structure is easy to process and assemble, and is especially suitable for integration into a compact magneto-optical switch 100. In terms of implementation, the block-shaped glass plates can be made of highly uniform optical materials (such as quartz crystals) to ensure that they maintain good phase delay performance over a wide wavelength range. In terms of technical effects, the block-shaped glass plates can not only improve their positioning accuracy and installation stability in the housing 1, but also facilitate alignment and coupling with other optical components (such as the first beam-splitting crystal 411, the first prism 413, etc.), thereby improving the alignment efficiency and long-term reliability of the entire optical path; at the same time, this structure helps to reduce edge diffraction effects and reduce light loss and polarization distortion caused by irregular shapes.

[0055] Please see Figure 1 In one embodiment, at least one of the first beam splitter crystal 411, the first glass slide 412, the first prism 413, the second glass slide 414, the second beam splitter crystal 415, the third beam splitter crystal 431, the third glass slide 432, the second prism 433, the fourth glass slide 434, and the fourth beam splitter crystal 435 is fixed inside the housing 1 by an adhesive layer.

[0056] In this embodiment, the adhesive layer can be an glue layer (such as UV-curable adhesive, epoxy resin, etc.), which has excellent bonding strength, thermal stability, and optical transparency. This fixing method not only effectively prevents the components from shifting due to vibration or temperature changes during use, but also provides a buffering effect to a certain extent, reducing mechanical stress damage to the optical components and thus improving their reliability. Furthermore, the adhesive fixing method is more compact than traditional mechanical clamping structures, which helps to achieve miniaturization and integration of the magneto-optical switch 100.

[0057] Please see Figure 1 In one embodiment, the housing 1 has an installation port that communicates with the cavity 101, and the optical crystal 4 is installed in the cavity 101; the magneto-optical switch 100 also includes a cover 5, which covers the installation port.

[0058] In this embodiment, the housing 1 serves as the main structural support and protective component of the magneto-optical switch 100. It is provided with a cavity 101 for accommodating the optical crystal 4, and the optical crystal 4 is assembled through one or more mounting ports communicating with it. The optical crystal 4, as the core element for realizing optical signal path switching, is fixedly installed in the cavity 101 to ensure that it maintains stable optical alignment and mechanical positioning during operation.

[0059] To effectively encapsulate and protect the optical crystal 4, the magneto-optical switch 100 is also equipped with a cover 5. The cover 5 is sized to match the mounting opening and can be sealed onto the opening, thereby enclosing the cavity 101. The cover 5 can be made of metal, ceramic, or high-strength non-metallic materials, possessing good sealing performance, thermal stability, and mechanical strength. The cover 5 and the housing 1 can be reliably connected via screws, welding, bonding, or snap-fit, ensuring that the entire cavity 101 forms a sealed space, effectively preventing dust, moisture, or other external contaminants from entering and affecting the performance and lifespan of the optical crystal 4. In summary, by providing a cavity 101 with a mounting opening and a cover 5, safe encapsulation and convenient installation of the optical crystal 4 can be achieved, ensuring the optical performance of the magneto-optical switch 100 while enhancing its maintainability.

[0060] This utility model also proposes an electronic device, which includes a magneto-optical switch 100. The specific structure of the magneto-optical switch 100 is as described in the above embodiments. Since this electronic device adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.

[0061] The above are merely exemplary embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural transformations made based on the technical concept of this utility model and the contents of the specification and drawings of this utility model, or direct / indirect applications in other related technical fields, are included within the patent protection scope of this utility model.

Claims

1. A magneto-optical switch, characterized in that, include: The box has a first side and a second side opposite to each other along its length. A first dual-fiber collimator is disposed on the first side. One end of the first dual-fiber collimator is disposed inside the housing, and the other end extends out of the housing and has a first input port and a second input port. A second dual-fiber collimator is disposed on the second side. One end of the second dual-fiber collimator is disposed inside the housing, and the other end extends out of the housing and has a first output port and a second output port. An optical crystal is disposed within the housing, connecting the first dual-fiber collimator and the second dual-fiber collimator. It is used to connect the first input port to the first output port and the second input port to the second output port during forward magnetization, and to connect the first input port to the second output port and the second input port to the first output port during reverse magnetization.

2. The magneto-optical switch as described in claim 1, characterized in that, The optical crystal includes a first optical device, a Faraday component, and a second optical device. The first dual-fiber collimator is connected to the second dual-fiber collimator in sequence through the first optical device, the Faraday component, and the second optical device.

3. The magneto-optical switch as described in claim 2, characterized in that, The Faraday component is used to connect the first input port to the first output port and the second input port to the second output port during forward magnetization, and to connect the first input port to the second output port and the second input port to the first output port during reverse magnetization.

4. The magneto-optical switch as described in claim 2, characterized in that, The first optical device includes a first beam splitter crystal, a first glass slide, a first prism, a second glass slide, and a second beam splitter crystal. The second optical device includes a third beam splitter crystal, a third glass slide, a second prism, a fourth glass slide, and a fourth beam splitter crystal. The first dual-fiber collimator is connected to the second dual-fiber collimator in sequence through the first beam splitter crystal, the first glass slide, the first prism, the second glass slide, the second beam splitter crystal, the Faraday component, the third beam splitter crystal, the third glass slide, the second prism, the fourth glass slide, and the fourth beam splitter crystal.

5. The magneto-optical switch as described in claim 4, characterized in that, The first prism and / or the second prism are triangular blocks in shape.

6. The magneto-optical switch as described in claim 4, characterized in that, At least one of the first glass slide, the second glass slide, the third glass slide, and the fourth glass slide is square in shape.

7. The magneto-optical switch as described in claim 4, characterized in that, At least one of the first beam splitter crystal, the first glass slide, the first prism, the second glass slide, the second beam splitter crystal, the third beam splitter crystal, the third glass slide, the second prism, the fourth glass slide, and the fourth beam splitter crystal is fixed to the housing by an adhesive layer.

8. The magneto-optical switch as described in claim 7, characterized in that, The adhesive layer is a glue layer.

9. The magneto-optical switch as described in any one of claims 1 to 8, characterized in that, The housing has a mounting port that communicates with the cavity, and the optical crystal is mounted in the cavity; The magneto-optical switch also includes a cover, which is disposed on the mounting port.

10. An electronic device, characterized in that, Including the magneto-optical switch as described in any one of claims 1 to 9.

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