Time delay assembly based on 2*2 magneto-optical switch and time delay array thereof

Abstract

The utility model relates to a time delay assembly based on a 2 * 2 magneto-optical switch. The time delay assembly comprises a magneto-optical switch unit. The magneto-optical switch unit comprises a first polarization splitting prism, a first wave plate, a magneto-optical crystal and a second polarization splitting prism which are arranged along the direction of an optical path; the first polarization splitting prism is used for combining two beams of polarized light with vertical polarization directions into a light beam; the second polarization splitting prism is used for decomposing the input light into two beams of polarized light with vertical polarization directions; a first compensating plate and a second compensating plate are respectively arranged on light paths of two output polarized lights of the second polarization splitting prism; the first compensation plate and the second compensation plate have different thicknesses so as to form a time delay unit. According to the utility model, a multi-stage series structure and synchronous driving can be realized; the time delay amount can be accurately adjusted, and accurate adjustment of the time delay can be completed by using the number of series connection; the magneto-optical switch unit and the time delay unit are compact in structure and low in loss; and a 2 * 2 magneto-optical switch is combined, so that double-input and double-output effects can be conveniently realized.

Description

Technical Field

[0001] This invention relates to the field of optical technology, and in particular to a time delay component and its time delay array based on a 2x2 magneto-optical switch. Background Technology

[0002] As human society gradually enters the 5G era, especially with the massive number of mobile terminals, the Internet of Things, and real-time remote operation, the available frequency bands for existing wireless communications are already extremely congested. Therefore, millimeter-wave communication, combining the wider bandwidth of millimeter waves with more energy-efficient beamforming and steering technology, has been proposed and applied. As a key technology for 5G communication, beamforming and beamguiding millimeter-wave communication will greatly improve wireless communication capacity to meet the ever-increasing capacity demands. The most crucial technology in this is the millimeter-wave phased array antenna system used for beamforming and beamguiding.

[0003] In this system, precise, wideband time delay or phase shifting is typically required to achieve phase control. Phase shifting schemes introduce beam deviation into wideband millimeter-wave signals, thus time delay schemes offer significant technical advantages. Traditionally, millimeter-wave wideband time delays are achieved in the electrical domain using electronic integration technology. However, as frequencies rise to the millimeter-wave band, traditional microelectronic integration technology faces challenges such as high losses and limited bandwidth.

[0004] Currently, traditional optical delay arrays are usually single-ended input and single-ended output, so their functions are relatively limited and it is difficult to meet the needs of various applications. Utility Model Content

[0005] To address the aforementioned problems in the prior art, this invention provides a time delay component based on a 2x2 magneto-optical switch.

[0006] To achieve the above objectives, the main technical solutions adopted by this utility model include:

[0007] A time-delay component based on a 2x2 magneto-optical switch includes a magneto-optical switch unit. The magneto-optical switch unit includes a first polarizing beam splitter, a first waveplate, an optical rotation component, and a second polarizing beam splitter arranged along the optical path. The first polarizing beam splitter is used to combine two beams of polarized light with perpendicular polarization directions into one beam. The second polarizing beam splitter is used to decompose the input light into two beams of polarized light with perpendicular polarization directions. A first compensation plate and a second compensation plate are respectively provided on the optical paths of the two output polarized beams of the second polarizing beam splitter. The first compensation plate and the second compensation plate have different thicknesses to form a time-delay unit.

[0008] In one embodiment of this utility model, several alternating magneto-optical switch units and time delay units are included.

[0009] In one embodiment of this utility model, the number of magneto-optical switch units is one more than the number of delay units.

[0010] In one embodiment of the present invention, the first polarizing beam splitter includes a first polarizing beam splitting surface and a first reflecting surface parallel to the first polarizing beam splitting surface.

[0011] In one embodiment of the present invention, the second polarizing beam splitter includes a second polarizing beam splitter surface and a second reflecting surface parallel to the second polarizing beam splitter surface.

[0012] In one embodiment of this utility model, the first waveplate is a 22.5° waveplate.

[0013] In one embodiment of this utility model, the optical rotation component includes a magneto-optical crystal disposed within a magnetic element; the magnetic element generates a positive magnetic field according to the direction of energization to control the optical rotation direction of the magneto-optical crystal to be positive or negative.

[0014] In one embodiment of this utility model, the magnetic element is a single-coil or state-latching electromagnet.

[0015] The time delay array based on 2x2 magneto-optical switches is composed of the time delay component array based on 2x2 magneto-optical switches.

[0016] The beneficial effects of this utility model are: it can realize a multi-level series structure and synchronous drive; the time delay can be precisely adjusted, and the precise adjustment of the time delay can be achieved by using the number of series connections; the magneto-optical switch unit and the time delay unit have a compact structure and low loss; combined with a 2x2 magneto-optical switch, it can easily achieve the effect of dual input and dual output. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a schematic diagram of another embodiment of the structure of this utility model.

[0020] Explanation of reference numerals in the attached figures:

[0021] 100. Magneto-optical switch unit; 110. First polarizing beam splitter prism; 111. First polarizing beam splitter surface; 112. First reflecting surface; 120. First waveplate; 130. Magneto-optical crystal; 131. Magnetic element; 140. Second polarizing beam splitter prism; 141. Second polarizing beam splitter surface; 142. Second reflecting surface; 150. First birefringent crystal shift plate; 160. Second birefringent crystal shift plate; 171. Second waveplate; 172. Third waveplate; 173. Fourth waveplate; 174. Fifth waveplate; 200. Time delay unit; 210. First compensation plate; 220. Second compensation plate. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely represents selected embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0023] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used 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. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0024] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0025] See Figure 1 This invention provides a time-delay component based on a 2x2 magneto-optical switch, including a magneto-optical switch unit 100. The magneto-optical switch unit 100 is a 2x2 magneto-optical switch. Specifically, the magneto-optical switch unit 100 includes a first polarizing beam splitter 110, a first waveplate 120, an optical rotation component, and a second polarizing beam splitter 140 arranged along the optical path direction. The first polarizing beam splitter 110 can combine two beams of polarized light with perpendicular polarization directions into a single beam. This facilitates the integration of optical signals with different polarization directions, enabling signal multiplexing, improving the efficiency and capacity of optical signal transmission, and allowing more information to be transmitted simultaneously within a limited optical path. In a multi-stage cascaded structure, this combining function helps simplify optical path design, reduce optical path complexity, and decrease optical signal loss and interference during transmission.

[0026] In one embodiment, the first waveplate 120 is a 22.5° waveplate. The first waveplate 120 can precisely adjust the polarization state of light, providing suitable polarization conditions for subsequent processing of optical signals by the magneto-optical crystal. By adjusting the polarization state, the magneto-optical effect can be better utilized, improving the performance and efficiency of the magneto-optical switch. Precise polarization state adjustment makes the magneto-optical switch more accurately control the optical signal, enabling more stable and reliable optical path switching and signal processing.

[0027] In one embodiment, the optical rotation component includes a magneto-optical crystal 130 disposed within a magnetic element 131. The magnetic element 131 generates positive and negative magnetic fields according to the direction of energization to control the optical rotation direction of the magneto-optical crystal 130 to be positive or negative. The magnetic element 131 is a single-coil or state-latching electromagnet, which can generate an external positive saturation magnetic field, maintain an external positive saturation magnetic field, generate an external negative saturation magnetic field, or maintain an external negative saturation magnetic field on the magneto-optical crystal 130. Under the action of the external positive saturation magnetic field, the optical rotation angle of the magneto-optical crystal 130 is positive 45°, and under the action of the external negative saturation magnetic field, the optical rotation angle of the magneto-optical crystal 130 is negative 45°.

[0028] The magneto-optical crystal 130 utilizes the magneto-optical effect to change the propagation direction or polarization state of light by controlling the magnetic field, thereby achieving optical path switching. This switching function is key to realizing multi-stage serial and synchronous driving, allowing for flexible adjustment of the optical path according to actual needs, improving the system's flexibility and adaptability. The magneto-optical crystal 130 has a fast response speed, enabling rapid optical path switching and signal processing, making it suitable for high-speed communication systems. Furthermore, it can be dynamically adjusted by changing parameters such as magnetic field strength to adapt to different communication environments and service requirements.

[0029] The second polarizing beam splitter 140 decomposes the input light into two beams of polarized light with perpendicular polarization directions, facilitating independent processing of optical signals with different polarization directions. In the time delay unit, this decomposition function provides the basis for setting different optical path lengths, allowing for time delay control of optical signals with different polarization directions using different compensation plates. This helps to separate the synthesized optical signal, facilitating signal detection and analysis, and improving the accuracy and reliability of signal processing.

[0030] In one embodiment, a first compensation plate 210 and a second compensation plate 220 are respectively provided on the optical paths of the two output polarized lights of the second polarizing beam splitter 140; the first compensation plate 210 and the second compensation plate 220 have different thicknesses to form a time delay unit 200; through the cooperation of the magneto-optical switch unit 100 and the time delay unit 200, a multi-level series connection structure can be easily formed, and synchronous driving can be achieved; and the time delay can be precisely adjusted due to the series structure, which can be achieved by increasing or decreasing the number of time delay units 200; the magneto-optical switch unit 100 is small in size, and the structure is compact when it is cooperated with the time delay unit 200, and the optical loss is also very small;

[0031] The first compensation plate 210 and the second compensation plate 220 have different thicknesses, and the time delay function is achieved through the optical path difference between them. This time delay control method based on thickness difference is very precise and can meet the high time delay accuracy requirements of applications such as millimeter-wave communication. By increasing or decreasing the number of time delay units 200, the time delay can be easily and precisely adjusted. This flexibility allows the system to quickly adjust the time delay parameters according to different communication needs and environmental conditions, improving the system's adaptability and performance.

[0032] The magneto-optical switch unit 100, in conjunction with the time delay unit 200, can be easily connected in a multi-stage series structure, which greatly enhances the system's scalability. The number of series stages can be increased or decreased according to actual needs to meet the requirements of communication systems of different scales and complexities. Synchronous drive can also be achieved, ensuring that signal processing and time delay control are synchronized between stages, avoiding signal confusion and delay, and improving the stability and reliability of the entire system.

[0033] The magneto-optical switching unit 100 is small in size and, when used with the delay unit 200, forms a compact structure, reducing the system's footprint and facilitating integration and installation. Simultaneously, it exhibits low optical loss, effectively improving optical signal transmission efficiency and reducing the energy consumption and cost of the communication system. The combination of multiple delay units 200 allows for various delay combinations to meet the diverse delay requirements of different application scenarios. For example, in beamforming and beamguiding in millimeter-wave communication, delay parameters can be flexibly adjusted according to different beam directions and communication distances, improving communication quality and coverage.

[0034] The working principle of the delay unit is as follows:

[0035] The optical path difference between the first compensation plate 210 and the second compensation plate 220 is ΔL;

[0036] ΔL=|L2-L1|

[0037] The thickness of the first compensation piece 210 is L1, and the thickness of the second compensation piece 220 is L2.

[0038] C is the speed of light;

[0039] The above is the delay amount of one delay unit. By cooperating with multiple delay units, various delay combinations can be achieved.

[0040] In one embodiment, it includes a plurality of alternately arranged magneto-optical switching units 100 and time delay units 200, such as... Figure 1 As shown, the magneto-optical switching unit 100 and the delay unit 200 are alternately arranged to meet different delay requirements. Each delay unit 200 can provide a specific delay. By alternately arranging multiple such units, different numbers of delay units can be flexibly combined according to actual needs to achieve fine adjustment of the delay. In complex communication scenarios, different services and signal transmission requirements may require different delays. For example, real-time voice communication requires extremely low latency, while some data storage and batch transmission services have relatively high latency tolerance. This alternating arrangement can easily meet these diverse delay requirements, allowing the system to flexibly adjust the delay according to specific circumstances and optimize communication performance. Taking beamforming in millimeter-wave communication as an example, different beam directions and angles may require precise control of signal delay to achieve accurate phase adjustment. By alternately arranging the magneto-optical switching unit 100 and the delay unit 200, the required delay units can be precisely selected and combined according to specific beam requirements, thereby achieving fine control of the beam, improving signal directivity and communication quality.

[0041] The alternating arrangement of multiple delay units 200 enables the system to cover a wider range of delays. This structure can easily achieve a wide range of adjustments from extremely low delays to relatively large delays by increasing or decreasing the number of delay units, adapting to different communication environments and application requirements.

[0042] Alternating settings also allow for multiple processing and optimization of the signal. After passing through a magneto-optical switching unit 100 and a time delay unit 200, the signal can be further processed and adjusted in time by subsequent units, thereby improving the signal quality and stability.

[0043] The alternating structure offers excellent scalability. When the system requires new functions or performance improvements, more magneto-optical switching units 100 and delay units 200 can be easily added. This modular design allows the system to be flexibly expanded according to actual needs without requiring large-scale modifications to the entire system. For example, with the growth of communication services and technological upgrades, if a wider delay adjustment range or improved signal processing capabilities are required, the system can be expanded simply by adding the corresponding units to the existing alternating structure.

[0044] Due to its flexible delay adjustment and signal processing capabilities, the alternating structure can be compatible with a variety of different communication protocols and standards. Different communication protocols and standards have different requirements for signal delay, bandwidth, modulation methods, etc., and this structure can meet these diverse requirements by adjusting the parameters and combinations of the magneto-optical switching unit and the delay unit.

[0045] In one embodiment, the number of magneto-optical switching units 100 is one more than the number of delay units 200. That is, the two ends of the delay component composed of multiple magneto-optical switching units 100 and delay units 200 are magneto-optical switching units 100, facilitating the input and output of two beams of polarized light with perpendicular polarization directions. The magneto-optical switching units 100 are located at both ends of the delay component, enabling more convenient processing of the input of two beams of polarized light with perpendicular polarization directions. The magneto-optical switching units at the first end can flexibly perform operations such as integration and modulation on the two input beams of polarized light according to specific needs. For example, in some complex optical communication systems, polarized light generated from different data sources may have different characteristics. The magneto-optical switching units at the first end can preprocess them, allowing them to enter the subsequent delay units in a more suitable state, improving signal transmission quality and processing efficiency.

[0046] The magneto-optical switch unit at the end is responsible for outputting the time-delayed signal. It can perform final adjustments and optimizations to the signal according to the system's output requirements, such as adjusting the signal's polarization state and intensity, to ensure the output signal meets the reception standards of subsequent equipment or systems. This is crucial for maintaining the stability and reliability of the entire communication link, effectively reducing signal distortion and loss during the output process.

[0047] The design, with magneto-optical switching units at both ends, facilitates the cascading expansion of delay components. Multiple such delay components can be connected via magneto-optical switching units to achieve more complex signal processing and a wider range of delay adjustments. In large-scale optical communication networks or high-performance signal processing systems, this cascading expansion capability can meet the ever-increasing service demands and technological advancements.

[0048] The magneto-optical switching units at both ends can effectively isolate and protect input and output signals, reducing the impact of external interference on the internal signal processing of the delay component. When there are interference sources such as electromagnetic interference and optical noise in the external environment, the magneto-optical switching units can adjust their own state to prevent interference signals from entering or leaking out of the delay component, thereby improving the system's anti-interference capability and stability.

[0049] In one embodiment, the first polarizing beam splitter 110 includes a first polarizing beam splitter surface 111 and a first reflecting surface 112 parallel to the first polarizing beam splitter surface 111. The input end of the first polarizing beam splitter 110 is used to input two beams of P-polarized light and S-polarized light with perpendicular polarization directions. The P-polarized light passes through the first polarizing beam splitter surface 111, and the S-polarized light is first reflected by the first reflecting surface 112 and then reflected by the first polarizing beam splitter surface 111 before being combined with the P-polarized light for further transmission. Through the synergistic effect of the first polarizing beam splitter surface 111 and the first reflecting surface 112, two beams of P-polarized light and S-polarized light with perpendicular polarization directions can be efficiently combined into one beam. This beam combining method utilizes the polarization characteristics of light, avoiding the energy loss and signal interference problems that may occur in traditional beam combining methods. In optical communication systems, efficient beam combining means that more information can be transmitted simultaneously in a limited optical fiber or optical path, improving the capacity and efficiency of the communication system. P-polarized light passes directly through the first polarization beam-splitting surface 111, while S-polarized light, after reflection from the first reflecting surface 112 and the first polarization beam-splitting surface 111, combines with the P-polarized light. This optical path design reduces the number of reflections and refractions during light transmission, thereby reducing energy loss in the optical signal. Compared to some complex light-combining structures, this design is simpler and can effectively maintain the intensity and quality of the optical signal, improving the overall performance of the system. This structure ensures the stability of the polarization states of P-polarized and S-polarized light during the light-combining process. Because the design of the first polarization beam-splitting surface 111 and the first reflecting surface 112 is based on the polarization characteristics of light, they precisely process light with different polarization states, ensuring that the polarization state of the combined optical signal remains relatively stable.

[0050] In one embodiment, the second polarizing beam splitter 140 includes a second polarizing beam splitter surface 141 and a second reflecting surface 142 parallel to the second polarizing beam splitter surface 141. The second polarizing beam splitter 140 is used to decompose the input light into two beams of polarized light with perpendicular polarization directions. After the combined light from the previous embodiment is further transmitted into the second polarizing beam splitter surface 141 of the second polarizing beam splitter 140, the P-polarized light passes through the second polarizing beam splitter surface 141 for further transmission, and the S-polarized light is reflected by the second polarizing beam splitter surface 141 and then reflected by the second reflecting surface 142, and output parallel to the P-polarized light, respectively entering the first compensation plate 210 and the second compensation plate 220, resulting in a time delay. The synergistic effect of the second polarizing beam splitter surface 141 and the second reflecting surface 142 can efficiently decompose the input light into P-polarized light and S-polarized light. This beam splitting method is based on the polarization characteristics of light, and compared with other beam splitting methods, it can more accurately separate light with different polarization states, reducing energy loss and signal interference during the beam splitting process. In optical communication systems, efficient beam splitting helps to accurately extract information carried by different polarization states, thereby improving the system's data transmission and processing capabilities.

[0051] The decomposed P-polarized and S-polarized light are output in parallel and enter the first compensation plate 210 and the second compensation plate 220 respectively, allowing the two beams to generate independent time delays. In applications such as beamforming and beam steering in millimeter-wave phased array antenna systems, signals with different polarization states may require different time delays to achieve precise phase control. This independent time delay control method allows for flexible adjustment of the time delays of the P and S-polarized light according to actual needs, thereby achieving more precise beam control and improving signal directivity and communication quality.

[0052] Because both P-polarized and S-polarized light enter the compensation plate through a fixed optical path (P-polarized light passes through the second polarization beam splitter 141, and S-polarized light is reflected and output), the stability and accuracy of the time delay are ensured. This stable optical path design reduces the influence of external factors on the light propagation path, allowing the time delay to be accurately predicted and controlled. In applications with extremely high time delay accuracy requirements, such as synchronization control in high-precision optical measurement and high-speed optical communication, this ensures the system's performance and reliability.

[0053] The structural design of the second polarizing beam splitter 140 gives it strong resistance to external interference. It can effectively shield against the influence of unpolarized light or other interfering light, allowing only light of a specific polarization state to enter the subsequent time delay unit. The structure of the second polarizing beam splitter 140 is relatively simple, making it easy to integrate with other optical components such as the first compensation plate 210 and the second compensation plate 220.

[0054] In one embodiment, a time delay array is formed by arranging the aforementioned time delay components. Each time delay component in the time delay array can independently process the input signal, achieving parallel signal processing. Different time delay components can be configured with different time delay parameters according to specific needs, thereby enabling targeted processing of different types of signals. In complex communication environments, there may be signals with various modulation schemes, bandwidths, and frequencies. The time delay array can allocate appropriate time delay components to each signal based on its characteristics, realizing diverse signal processing strategies and improving the system's adaptability and processing effectiveness for different signals. In millimeter-wave phased array antenna systems, the time delay array plays a crucial role in beamforming and beam steering. Through array arrangement, the signal delay of each antenna element can be precisely controlled, thereby achieving more flexible and accurate beam control. Compared to a single time delay component, a time delay array can generate more complex beam shapes, improving beam directivity and coverage, enhancing signal strength and quality, reducing signal interference and fading, and improving the overall performance of the communication system. A time delay array composed of multiple time delay components has a certain degree of redundancy. If one of the delay components fails, the other components can still function normally, ensuring that some functions of the system are not affected. At the same time, the array arrangement can also improve the system's anti-interference capability and reduce the impact of external factors on signal processing through reasonable design and optimization, thereby improving the system's stability and reliability.

[0055] like Figure 2 As shown, in one embodiment, the input end of the magneto-optical switching unit 100 is provided with a first birefringent crystal shift plate 150; the input end of the first birefringent crystal shift plate 150 is provided with a dual-fiber collimator (not shown in the figure), and the two beams of light output from the dual-fiber collimator are split into four beams by the first birefringent crystal shift plate 150, as shown in the polarization diagram below. Figure 2As shown in S1; the output end of the first birefringent crystal shift plate 150 is sequentially provided with a second waveplate 171 and a third waveplate 172. The second waveplate 171 is set in the optical path corresponding to the upper half of the beam. The polarization diagram of the four beams after passing through the second waveplate 171 is shown in S2. The third waveplate 172 is set in the optical path corresponding to the right half of the beam. The polarization diagram of the four beams after passing through the third waveplate 172 is shown in S3. Further, the four beams are coupled into the magneto-optical switching unit 100 in the time delay component. The output end of the time delay component is sequentially provided with a fourth waveplate 173 and a fifth waveplate 174 along the optical path direction. The second birefringent crystal shift plate 160; the fourth waveplate 173 is set in the optical path corresponding to the left half of the beam, and the polarization diagram of the four beams after passing through the fourth waveplate 173 is shown in S4; the fifth waveplate 174 is set in the optical path corresponding to the upper half of the beam, and the polarization diagram of the four beams after passing through the fifth waveplate 174 is shown in S5; the four beams further enter the second birefringent crystal shift plate 160 for beam combining and are then coupled into the dual-fiber collimator at the output end; it should be noted that the second waveplate 171, the third waveplate 172, the fourth waveplate 173, and the fifth waveplate 174 all act on two beams simultaneously when in use; Figure 2 The second waveplate 171, the third waveplate 172, the fourth waveplate 173, and the fifth waveplate 174 all contain solid lines and dashed lines. The dashed lines do not contain the actual waveplate structure; they are only used to illustrate the relative positions of the waveplates. The solid lines represent the waveplate structure.

[0056] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent modifications made based on the content of this utility model specification and drawings, or direct or indirect applications in related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A latency component based on a 2x2 magneto-optical switch, characterized in that: The application relates to a time delay component array arrangement based on a 2x2 magneto-optical switch, which comprises a magneto-optical switch unit (100); the magneto-optical switch unit (100) comprises a first polarization beam splitter prism (110), a first wave plate (120), an optical rotation assembly and a second polarization beam splitter prism (140) arranged along the light path direction; the first polarization beam splitter prism (110) is used for synthesizing two polarized lights with perpendicular polarization directions into one light beam; the second polarization beam splitter prism (140) is used for decomposing input light into two polarized lights with perpendicular polarization directions; first and second compensation sheets (210 and 220) are respectively arranged on the light paths of the two output polarized lights of the second polarization beam splitter prism (140); the first and second compensation sheets (210 and 220) have different thicknesses to form a time delay unit (200).

2. The 2x2 magneto-optical switch based latency component of claim 1, wherein: The application further relates to a time delay component array arrangement based on a 2x2 magneto-optical switch, which comprises a plurality of alternately arranged magneto-optical switch units (100) and time delay units (200).

3. The 2x2 magneto-optical switch based latency component of claim 2, wherein: The number of the magneto-optical switch units (100) is one more than that of the time delay units (200).

4. The 2x2 magneto-optical switch based latency component of claim 1, wherein: The first polarization beam splitter prism (110) comprises a first polarization beam splitting surface (111) and a first reflecting surface (112) parallel to the first polarization beam splitting surface (111).

5. The 2x2 magneto-optical switch based latency component of claim 1, wherein: The second polarization beam splitter prism (140) comprises a second polarization beam splitting surface (141) and a second reflecting surface (142) parallel to the second polarization beam splitting surface (141).

6. The 2x2 magneto-optical switch based latency component of claim 1, wherein: The first wave plate (120) is a 22.5-degree wave plate.

7. The 2x2 magneto-optical switch based latency component of claim 1, wherein: The optical rotation assembly comprises a magneto-optical crystal (130) arranged in a magnetic element (131); the magnetic element (131) generates a positive or negative magnetic field according to the energization direction to control the optical rotation direction of the magneto-optical crystal (130) to be positive or negative.

8. The 2x2 magneto-optical switch based latency component of claim 7, wherein: The magnetic element (131) is a single coil or a state latching electromagnet.

9. A latency array based on 2x2 magneto-optical switches, characterized in that: The application further relates to a time delay component array arrangement based on a 2x2 magneto-optical switch, which comprises a plurality of alternately arranged magneto-optical switch units (100) and time delay units (200). The number of the magneto-optical switch units (100) is one more than that of the time delay units (200). The first polarization beam splitter prism (110) comprises a first polarization beam splitting surface (111) and a first reflecting surface (112) parallel to the first polarization beam splitting surface (111). The second polarization beam splitter prism (140) comprises a second polarization beam splitting surface (141) and a second reflecting surface (142) parallel to the second polarization beam splitting surface (141). The first wave plate (120) is a 22.5-degree wave plate. The optical rotation assembly comprises a magneto-optical crystal (130) arranged in a magnetic element (131); the magnetic element (131) generates a positive or negative magnetic field according to the energization direction to control the optical rotation direction of the magneto-optical crystal (130) to be positive or negative. The magnetic element (131) is a single coil or a state latching electromagnet. The application further relates to a time delay component array arrangement based on a 2x2 magneto-optical switch, which comprises a plurality of alternately arranged magneto-optical switch units (100) and time delay units (200).

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