Phase modulation method, device, medium and product for wss port diffraction energy

Abstract

The application discloses a WSS port diffraction energy phase modulation method, device, medium and product, relates to the wavelength selective switch port diffraction energy modulation technical field, and the method comprises the following steps: respectively inputting a plurality of groups of combinations into a synthetic phase topography expression, obtaining the synthetic topography of a blazed grating under each combination; the combination comprises the harmonic order of the harmonic component, the phase of the harmonic component and the amplitude of the harmonic component; the synthetic topography of the blazed grating under each combination is simulated in simulation software, and the diffraction energy of a target port under each combination is obtained; according to the diffraction energy of the target port under each combination, the diffraction energy of the target port is adjusted, and the application realizes fine adjustment of the wavelength selective switch main energy level port diffraction energy.

Description

Technical Field

[0001] This application relates to the field of wavelength selective switch port diffraction energy modulation technology, and in particular to a phase modulation method, device, medium and product for WSS port diffraction energy. Background Technology

[0002] With the dramatic increase in fiber optic transmission capacity and the widespread application of dense wavelength division multiplexing (DWDM) technology in optical communication, building a next-generation intelligent all-optical communication network based on wavelength switching has gradually become an important consensus in the fields of communication research and industry. Optical cross-connectors and optical add-drop multiplexers, which can be remotely controlled via software, are essential foundational equipment for the development of future all-optical communication networks, possessing extremely important research value and broad international market demand.

[0003] Wavelength-selective switches (WSS) are core components of optical cross-connectors and optical add-drop multiplexers, enabling the output of any one or a set of wavelengths from an input port from any port. For next-generation optical networks, WSS based on LCOS (liquid crystal oscillator) technology is a highly attractive solution. In LCOS, each pixel electrode can be independently controlled, allowing for high-precision and flexible quantization of multi-level phase modulation without mechanical rotation. It offers advantages such as high stability, high flexibility, adjustable bandwidth, and simple structure. Currently, the main technical challenge facing programmable wavelength-selective switches based on LCOS spatial light modulators is the severe shortage of port numbers and spectral resolution, which falls far short of the needs of future all-optical network technologies and high-speed superchannel transmission and switching research. Therefore, a phase modulation method capable of finely adjusting the diffraction energy of the master level ports of the wavelength-selective switch is needed to address these technical issues. Summary of the Invention

[0004] The purpose of this application is to provide a phase modulation method, device, medium, and product for the diffraction energy of the WSS port, which can achieve fine adjustment of the diffraction energy of the master level port of the wavelength selective switch.

[0005] To achieve the above objectives, this application provides the following solution:

[0006] In a first aspect, this application provides a phase modulation method for the diffraction energy of a WSS port, applied to a programmable wavelength selective switch based on a silicon-based liquid crystal spatial light modulator, wherein the phase modulation method for the diffraction energy of the WSS port includes:

[0007] Construct a synthetic phase morphology expression; the synthetic phase morphology expression is the sum of the initial phase morphology expression and the harmonic component expression of the blazed grating in the programmable wavelength selective switch based on silicon-based liquid crystal spatial light modulator;

[0008] Multiple combinations are input into the synthesized phase morphology expression to obtain the synthesized morphology of the blazed grating in the programmable wavelength selective switch based on the silicon-based liquid crystal spatial light modulator under each combination; the combination includes the harmonic order of the harmonic component, the phase of the harmonic component, and the amplitude of the harmonic component;

[0009] The composite morphology of the blazed grating in the programmable wavelength selective switch based on silicon-based liquid crystal spatial light modulator under various combinations was simulated in simulation software to obtain the diffraction energy of the target port in the programmable wavelength selective switch based on silicon-based liquid crystal spatial light modulator under various combinations.

[0010] The diffraction energy of the target port in the programmable wavelength selective switch based on the silicon-based liquid crystal spatial light modulator is adjusted according to the diffraction energy of the target port under various combinations.

[0011] Optionally, the initial phase morphology expression of the blazed grating in the programmable wavelength selective switch based on the silicon-based liquid crystal spatial light modulator is: y1 = 2kπx / d, 0 ≤ x ≤ d, where y1 represents the initial phase depth at x in the blazed grating of the programmable wavelength selective switch based on the silicon-based liquid crystal spatial light modulator, 2kπ represents the maximum phase depth, k is a positive integer with no practical meaning, x represents the position coordinates of each point on the blazed grating of the programmable wavelength selective switch based on the silicon-based liquid crystal spatial light modulator, and d represents the period length of the blazed grating of the programmable wavelength selective switch based on the silicon-based liquid crystal spatial light modulator.

[0012] Optionally, the expression for the harmonic components is: 0≤x≤d, where φ represents the harmonic components, p i ψ represents the amplitude of the i-th harmonic component. i Let d represent the phase of the i-th harmonic component, and d represent the period length of the blazed grating in the programmable wavelength selective switch based on a silicon-based liquid crystal spatial light modulator. i Let I' represent the harmonic order of the i-th harmonic component, I' represent the total number of preset harmonic components, R() represent the harmonic function, and x represent the position coordinates of each point on the blazed grating in the programmable wavelength selection switch based on the silicon-based liquid crystal spatial light modulator.

[0013] Optionally, the period length of the blazed grating in the programmable wavelength selective switch based on the silicon-based liquid crystal spatial light modulator is calculated according to the formula d*sinθ=k*λ, where θ represents the target deflection angle of the blazed grating in the programmable wavelength selective switch based on the silicon-based liquid crystal spatial light modulator, λ represents the wavelength of the light incident on the programmable wavelength selective switch based on the silicon-based liquid crystal spatial light modulator, and k is a positive integer with no practical meaning.

[0014] Optionally, the diffraction energy of the target port in the programmable wavelength selective switch based on the silicon-based liquid crystal spatial light modulator is adjusted according to the diffraction energy of the target port under each combination, specifically including:

[0015] Based on the diffraction energy of the target port in the programmable wavelength selection switch based on silicon-based liquid crystal spatial light modulator under each combination, determine the combination corresponding to the preset diffraction energy;

[0016] The target port of the programmable wavelength selective switch based on silicon-based liquid crystal spatial light modulator is adjusted according to the preset combination of diffraction energies, thereby adjusting the diffraction energy of the target port of the programmable wavelength selective switch based on silicon-based liquid crystal spatial light modulator.

[0017] In a second aspect, this application provides a computer device, including: a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the computer program to implement the steps of the phase modulation method for WSS port diffraction energy as described above.

[0018] Thirdly, this application provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the steps of the phase modulation method for WSS port diffraction energy described above.

[0019] Fourthly, this application provides a computer program product, including a computer program that, when executed by a processor, implements the steps of the phase modulation method for WSS port diffraction energy described above.

[0020] According to the specific embodiments provided in this application, the following technical effects are disclosed:

[0021] This application provides a phase modulation method, device, medium, and product for the diffraction energy of WSS ports. By constructing a synthetic phase morphology expression, harmonic components are synthesized based on the initial blazed grating morphology. This allows for the continuous and fine-tuning of the main energy level port energy by changing the energy of other specific ports while ensuring isolation. This increases the precision of spectral manipulation and realizes a phase modulation method for finely adjusting the diffraction energy of the main energy level port of the wavelength selective switch. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is an application environment diagram of a phase modulation method for WSS port diffraction energy according to an embodiment of this application;

[0024] Figure 2 A schematic flowchart illustrating a phase modulation method for WSS port diffraction energy provided in an embodiment of this application;

[0025] Figure 3 This is a schematic diagram of the structure of a computer device provided in an embodiment of this application. Detailed Implementation

[0026] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0027] To make the above-mentioned objectives, features and advantages of this application more apparent and understandable, the application will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0028] The phase modulation method for WSS port diffraction energy provided in this application embodiment can be applied to, for example... Figure 1In the application environment shown, terminal 102 communicates with server 104 via a network. A data storage system can store the data that server 104 needs to process. The data storage system can be set up independently, integrated into server 104, or placed in the cloud or on another server. Terminal 102 can send the wavelength selection switch to be processed to server 104. After receiving the wavelength selection switch, server 104 constructs a synthetic phase morphology expression for the wavelength selection switch. The synthetic phase morphology expression is the sum of the initial phase morphology expression and the harmonic component expression of the blazed grating in the programmable wavelength selection switch based on silicon-based liquid crystal spatial light modulator. Multiple combinations are input into the synthetic phase morphology expression to obtain the synthetic morphology of the blazed grating in the programmable wavelength selection switch based on silicon-based liquid crystal spatial light modulator under each combination. The combination includes the harmonic order, phase, and amplitude of the harmonic components. The synthetic morphology of the blazed grating in the programmable wavelength selection switch based on silicon-based liquid crystal spatial light modulator under each combination is simulated in simulation software to obtain the diffraction energy of the target port in the programmable wavelength selection switch based on silicon-based liquid crystal spatial light modulator under each combination. The diffraction energy of the target port in the programmable wavelength selection switch based on silicon-based liquid crystal spatial light modulator is adjusted according to the diffraction energy of the target port in the programmable wavelength selection switch based on silicon-based liquid crystal spatial light modulator under each combination. Server 104 can feed back the diffraction energy of the target port in the programmable wavelength selective switch based on the silicon-based liquid crystal spatial light modulator under various combinations to terminal 102. Furthermore, in some embodiments, the phase modulation method for the WSS port diffraction energy can also be implemented separately by server 104 or terminal 102. For example, terminal 102 can directly perform phase modulation of the WSS port diffraction energy for the wavelength selective switch to be processed, or server 104 can obtain the wavelength selective switch to be processed from the data storage system and perform phase modulation of the WSS port diffraction energy for the wavelength selective switch to be processed.

[0029] The terminal 102 can be, but is not limited to, various desktop computers, laptops, smartphones, tablets, IoT devices, and portable wearable devices. IoT devices can include smart speakers, smart TVs, smart air conditioners, and smart in-vehicle devices. Portable wearable devices can include smartwatches, smart bracelets, and head-mounted devices. The server 104 can be implemented using a standalone server or a server cluster composed of multiple servers, or it can be a cloud server.

[0030] In one exemplary embodiment, such as Figure 2As shown, a phase modulation method for WSS port diffraction energy is provided. This method is executed by a computer device, specifically by a terminal or server alone, or by both a terminal and a server. In this embodiment, the method is applied to... Figure 1 Taking server 104 as an example, the explanation includes the following steps 201 to 204. Wherein:

[0031] Step 201: Construct a synthetic phase morphology expression; the synthetic phase morphology expression is the sum of the initial phase morphology expression and the harmonic component expression of the blazed grating in the programmable wavelength selective switch of the silicon-based liquid crystal spatial light modulator.

[0032] Step 202: Input multiple combinations into the synthesized phase morphology expression to obtain the synthesized morphology of the blazed grating in the programmable wavelength selection switch based on the silicon-based liquid crystal spatial light modulator under each combination; the combination includes the harmonic order of the harmonic component, the phase of the harmonic component, and the amplitude of the harmonic component.

[0033] Step 203: Simulate the composite morphology of the blazed grating in the programmable wavelength selective switch based on silicon-based liquid crystal spatial light modulator under various combinations in simulation software to obtain the diffraction energy of the target port in the programmable wavelength selective switch based on silicon-based liquid crystal spatial light modulator under various combinations.

[0034] Step 204: Adjust the diffraction energy of the target port in the programmable wavelength selective switch based on the silicon-based liquid crystal spatial light modulator according to the diffraction energy of the target port under each combination.

[0035] This application achieves finely tunable diffraction energy by superimposing harmonic components of different frequencies (harmonic orders), amplitudes, and phases onto the initial phase morphology (phase depth distribution morphology) of a blazed grating, and by changing the frequency, amplitude, and phase of the harmonic components.

[0036] In another exemplary embodiment of this application, a periodic initial blazed grating phase morphology is generated with 2kπ (k = 1, 2, 3...) as the highest phase depth. Taking a single period as an example, the initial phase morphology expression of the blazed grating is: y1 = 2kπx / d, 0 ≤ x ≤ d, where y1 represents the initial phase depth at x in the blazed grating of the programmable wavelength selective switch based on the silicon-based liquid crystal spatial light modulator, 2kπ represents the highest phase depth, k is a positive integer with no practical meaning, x represents the position coordinates of each point on the blazed grating of the programmable wavelength selective switch based on the silicon-based liquid crystal spatial light modulator, and d represents the period length of the blazed grating of the programmable wavelength selective switch based on the silicon-based liquid crystal spatial light modulator. The initial phase depths at all positions constitute the initial phase morphology of the blazed grating.

[0037] In another exemplary embodiment of this application, harmonic components of different frequencies (harmonic orders), amplitudes, and phases are superimposed on the initial phase morphology of the blazed grating. These harmonic components can be sine waves, cosine waves, triangular waves, square waves, etc. Taking a single period as an example, the expression for the harmonic components is: 0≤x≤d, where φ represents the harmonic components, p i ψ represents the amplitude of the i-th harmonic component. i Let d represent the phase of the i-th harmonic component, and d represent the period length of the blazed grating in the programmable wavelength selective switch based on a silicon-based liquid crystal spatial light modulator. i I' represents the harmonic order of the i-th harmonic component, I' represents the preset total number of harmonic components (which can be any positive number), R() represents the harmonic function, and x represents the position coordinates of each point on the blazed grating in the programmable wavelength selection switch based on the silicon-based liquid crystal spatial light modulator.

[0038] In another exemplary embodiment of this application, multiple combinations are input into the synthetic phase morphology expression to obtain the synthetic morphology of the blazed grating in the programmable wavelength selective switch based on the silicon-based liquid crystal spatial light modulator under each combination. Specifically, for any combination, the combination is input into the harmonic component expression in the synthetic phase morphology expression, and then all x are traversed to obtain the morphology corresponding to the combination.

[0039] In another exemplary embodiment of this application, the period length of the blazed grating in the programmable wavelength selective switch based on the silicon-based liquid crystal spatial light modulator is calculated according to the grating equation of the blazed grating d*sinθ=k*λ, where θ represents the target deflection angle of the blazed grating in the programmable wavelength selective switch based on the silicon-based liquid crystal spatial light modulator, λ represents the wavelength of the light incident on the programmable wavelength selective switch based on the silicon-based liquid crystal spatial light modulator, and k is a positive integer with no practical meaning, and the value of k is the quotient of the highest phase depth and 2π.

[0040] In another exemplary embodiment of this application, the diffraction energy of the target port in the programmable wavelength selective switch based on the silicon-based liquid crystal spatial light modulator is adjusted according to the diffraction energy of the target port under various combinations, specifically including:

[0041] Based on the diffraction energy of the target port in the programmable wavelength selection switch based on silicon-based liquid crystal spatial light modulator under various combinations, the combination corresponding to the preset diffraction energy is determined.

[0042] The target port of the programmable wavelength selective switch based on silicon-based liquid crystal spatial light modulator is adjusted according to the preset combination of diffraction energies, thereby adjusting the diffraction energy of the target port of the programmable wavelength selective switch based on silicon-based liquid crystal spatial light modulator.

[0043] In another exemplary embodiment of this application, taking the generation of a periodic initial blazed grating phase morphology with a 2π phase depth as an example, when the target deflection angle is θ, the angle of the Nth-order port in the wavelength selection switch is Nθ, where N is an integer, and the 1st-order port is the dominant energy level. When N-0.5≤i≤N+0.5, the amplitude p of the harmonic components... i It is positively correlated with the energy of the kN+1 order port, where k is any integer, i.e., the amplitude p of the harmonic component. i The larger the value, the greater the energy at the kN+1 port. This energy mainly originates from the first-order port, thus enabling continuous attenuation of the first-order port energy. Similarly, the lower the harmonic component amplitude, the more continuously the first-order port energy can increase.

[0044] Specifically: The target deflection angle is set to 0.358°, the maximum phase depth is 2π, and the grating period d is calculated to be 248.07μm. The first-order port is the principal energy level and has high energy. The goal of this example is to achieve finely adjustable energy at the first-order port. Therefore, at least one higher-order harmonic component needs to be superimposed. This example uses a sine wave component. The larger the amplitude of the harmonic component, the greater the corresponding higher-order port energy, thus achieving continuous and finely adjustable energy decay at the principal energy level port, i.e., the first-order port.

[0045] Table 1 shows the energy distribution of some ports after the original blazed grating is superimposed with a sinusoidal function sin10ωx (ω=2π / d) obtained from the VirtualLab Fusion Trial simulation. The sinusoidal shape amplitude is adjusted so that the energy of the first-order port of the principal level is between 70% and 80%. It can be seen that increasing the sinusoidal shape amplitude gradually increases the energy of the 11th-order (3.9386°) port and the -10th-order (-3.2227°) ​​port, while the energy of the first-order port continuously decreases, without causing a rapid increase in stray light energy at nearby higher-order ports.

[0046] Table 1. Energy distribution of nearby ports when the first-order port energy of the principal level is between 70% and 80%.

[0047]

[0048] Taking a single period as an example, the mathematical expression for the phase depth of the synthesized topography after the initial blazed grating is superimposed with a sine wave is as follows, where ω=2π / d, x is the position coordinate, 0≤x≤d. In this example, the accuracy is 1%, but in practice it can be achieved to 0.1% or even 0.01%.

[0049] When the first-order port diffraction energy is 80%, the mathematical expression for the synthesized morphology is y = ωx + 0.1401πsin10ωx.

[0050] When the first-order port diffraction energy is 79%, the mathematical expression for the synthesized morphology is y = ωx + 0.1512πsin10ωx.

[0051] When the first-order port diffraction energy is 78%, the mathematical expression for the synthesized morphology is y = ωx + 0.1684πsin10ωx.

[0052] When the first-order port diffraction energy is 77%, the mathematical expression for the synthesized morphology is y = ωx + 0.1779πsin10ωx.

[0053] When the first-order port diffraction energy is 76%, the mathematical expression for the synthesized morphology is y = ωx + 0.1847πsin10ωx.

[0054] When the first-order port diffraction energy is 75%, the mathematical expression for the synthesized morphology is y = ωx + 0.1918πsin10ωx.

[0055] When the first-order port diffraction energy is 74%, the mathematical expression for the synthesized morphology is y = ωx + 0.1951πsin10ωx.

[0056] When the first-order port diffraction energy is 73%, the mathematical expression for the synthesized morphology is y = ωx + 0.2047πsin10ωx.

[0057] When the first-order port diffraction energy is 72%, the mathematical expression for the synthesized morphology is y = ωx + 0.2113πsin10ωx.

[0058] When the first-order port diffraction energy is 71%, the mathematical expression for the synthesized morphology is y = ωx + 0.2186πsin10ωx.

[0059] When the first-order port diffraction energy is 70%, the mathematical expression for the synthesized morphology is y = ωx + 0.2244πsin10ωx.

[0060] This application has the following technical effects:

[0061] 1. Based on actual needs, only one high-order harmonic component morphology needs to be superimposed to complete the target port energy control, which is simple and easy to implement.

[0062] 2. Based on actual needs, only the amplitude of one harmonic component needs to be adjusted to achieve fine control of the target port energy, thus increasing the accuracy of port energy control.

[0063] 3. It can control port energy while ensuring isolation.

[0064] This application also provides an application scenario in which the phase modulation method for WSS port diffraction energy described above is applied. Specifically, the phase modulation method for WSS port diffraction energy provided in this embodiment can be applied in the scenario of adjusting the principal energy level. The scenario of adjusting the principal energy level includes adjusting the phase depth morphology and adjusting the voltage of each electrode in the liquid crystal layer according to the phase depth morphology. The phase modulation method for WSS port diffraction energy provided in this embodiment belongs to the phase depth morphology adjustment step.

[0065] In one exemplary embodiment, a computer device is provided, which may be a server or a terminal, and its internal structure diagram may be as follows. Figure 3 As shown, this computer device includes a processor, memory, input / output (I / O) interfaces, and a communication interface. The processor, memory, and I / O interfaces are connected via a system bus, and the communication interface is also connected to the system bus via the I / O interfaces. The processor provides computational and control capabilities. The memory includes non-volatile storage media and internal memory. The non-volatile storage media stores the operating system, computer programs, and a database. The internal memory provides the environment for the operating system and computer programs stored in the non-volatile storage media. The database stores phase modulation data of WSS port diffraction energy. The I / O interfaces are used for information exchange between the processor and external devices. The communication interface is used for communication with external terminals via a network connection. When the computer program is executed by the processor, it implements a phase modulation method for WSS port diffraction energy.

[0066] Those skilled in the art will understand that Figure 3The structures shown are merely block diagrams of some structures related to the present application and do not constitute a limitation on the computer device to which the present application is applied. Specific computer devices may include more or fewer components than shown in the figures, or combine certain components, or have different component arrangements. In an exemplary embodiment, a computer device is provided, including a memory and a processor. The memory stores a computer program, and the processor executes the computer program to implement the steps in the above-described method embodiments.

[0067] In one exemplary embodiment, a computer-readable storage medium is provided storing a computer program that, when executed by a processor, implements the steps in the above-described method embodiments.

[0068] In one exemplary embodiment, a computer program product is provided, including a computer program that, when executed by a processor, implements the steps in the above-described method embodiments.

[0069] It should be noted that the user information (including but not limited to user device information, user personal information, etc.) and data (including but not limited to data used for analysis, data stored, data displayed, etc.) involved in this application are all information and data authorized by the user or fully authorized by all parties, and the collection, use and processing of the relevant data must comply with relevant regulations.

[0070] Those skilled in the art will understand that all or part of the processes in the methods of the above embodiments can be implemented by a computer program instructing related hardware. The computer program can be stored in a non-volatile computer-readable storage medium, and when executed, it can include the processes of the embodiments of the above methods. Any references to memory, databases, or other media used in the embodiments provided in this application can include at least one of non-volatile and volatile memory. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory, optical memory, high-density embedded non-volatile memory, resistive random access memory (ReRAM), magnetic random access memory (MRAM), ferroelectric random access memory (FRAM), phase change memory (PCM), graphene memory, etc. Volatile memory can include random access memory (RAM) or external cache memory, etc. By way of illustration and not limitation, RAM can take many forms, such as Static Random Access Memory (SRAM) or Dynamic Random Access Memory (DRAM).

[0071] The databases involved in the embodiments provided in this application may include at least one type of relational database and non-relational database. Non-relational databases may include, but are not limited to, blockchain-based distributed databases. The processors involved in the embodiments provided in this application may be general-purpose processors, central processing units, graphics processing units, digital signal processors, programmable logic devices, quantum computing-based data processing logic devices, etc., and are not limited to these.

[0072] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0073] This document uses specific examples to illustrate the principles and implementation methods of this application. The descriptions of the above embodiments are only for the purpose of helping to understand the methods and core ideas of this application. Furthermore, those skilled in the art will recognize that, based on the ideas of this application, there will be changes in the specific implementation methods and application scope. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. A method of phase modulation of WSS port diffracted energy, applied to a programmable wavelength selective switch based on a liquid crystal on silicon spatial light modulator, characterized in that, The phase modulation method of the WSS port diffracted energy comprises: constructing a synthetic phase topography expression; the synthetic phase topography expression is the sum of the initial phase topography expression of the blazed grating in the programmable wavelength selective switch based on the liquid crystal on silicon spatial light modulator and the harmonic component expression; inputting multiple sets of combinations into the synthetic phase topography expression respectively to obtain the synthetic topography of the blazed grating in the programmable wavelength selective switch based on the liquid crystal on silicon spatial light modulator under each combination; the combination includes the harmonic order of the harmonic component, the phase of the harmonic component and the amplitude of the harmonic component; simulating the synthetic topography of the blazed grating in the programmable wavelength selective switch based on the liquid crystal on silicon spatial light modulator under each combination in the simulation software to obtain the diffracted energy of the target port in the programmable wavelength selective switch based on the liquid crystal on silicon spatial light modulator under each combination; adjusting the diffracted energy of the target port in the programmable wavelength selective switch based on the liquid crystal on silicon spatial light modulator according to the diffracted energy of the target port in the programmable wavelength selective switch based on the liquid crystal on silicon spatial light modulator under each combination.

2. The method of phase modulation of WSS port diffracted energy according to claim 1, wherein, The initial phase topography expression of the blazed grating in the programmable wavelength selective switch based on the liquid crystal on silicon spatial light modulator is y1=2kπx / d, 0≤x≤d, wherein y1 represents the initial phase depth of the blazed grating in the programmable wavelength selective switch based on the liquid crystal on silicon spatial light modulator at x, 2kπ represents the highest phase depth, k is a positive integer without practical significance, x represents the position coordinates of each point on the blazed grating in the programmable wavelength selective switch based on the liquid crystal on silicon spatial light modulator, and d represents the period length of the blazed grating in the programmable wavelength selective switch based on the liquid crystal on silicon spatial light modulator.

3. The method of phase modulation of WSS port diffracted energy of claim 1, wherein, The harmonic component expression is: 0≤x≤d, where φ represents a harmonic component, p i represents an amplitude of the i-th harmonic component, ψ i represents a phase of the i-th harmonic component, d represents a period length of a blazed grating in a programmable wavelength selective switch based on a liquid crystal on silicon spatial light modulator, I i represents a harmonic order of the i-th harmonic component, I' represents a preset total number of harmonic components, R() represents a harmonic function, and x represents a position coordinate of each point on the blazed grating in the programmable wavelength selective switch based on the liquid crystal on silicon spatial light modulator.

4. The method of phase modulation of WSS port diffracted energy of claim 2, wherein, The period length of the blazed grating in the programmable wavelength selective switch based on the liquid crystal on silicon spatial light modulator is calculated according to the formula d*sinθ=k*λ, wherein θ represents the target deflection angle of the blazed grating in the programmable wavelength selective switch based on the liquid crystal on silicon spatial light modulator, λ represents the wavelength of the light incident on the programmable wavelength selective switch based on the liquid crystal on silicon spatial light modulator, and k is a positive integer without practical significance.

5. The method of phase modulation of WSS port diffracted energy of claim 1, wherein, Adjusting the diffracted energy of the target port in the programmable wavelength selective switch based on the liquid crystal on silicon spatial light modulator according to the diffracted energy of the target port in the programmable wavelength selective switch based on the liquid crystal on silicon spatial light modulator under each combination, specifically comprises: determining the combination corresponding to the preset diffracted energy according to the diffracted energy of the target port in the programmable wavelength selective switch based on the liquid crystal on silicon spatial light modulator under each combination; adjusting the target port in the programmable wavelength selective switch based on the liquid crystal on silicon spatial light modulator according to the combination corresponding to the preset diffracted energy to realize the adjustment of the diffracted energy of the target port in the programmable wavelength selective switch based on the liquid crystal on silicon spatial light modulator.

6. A computer device comprising: A memory, a processor, and a computer program stored on the memory and executable on the processor, characterized in that the processor executes the computer program to implement the method of phase modulation of WSS port diffraction energy according to any one of claims 1-5.

7. A computer readable storage medium having stored thereon a computer program, characterized in that, The computer program is executed by the processor to implement the method of phase modulation of WSS port diffraction energy according to any one of claims 1-5.

8. A computer program product comprising a computer program, characterized in that, The computer program is executed by the processor to implement the method of phase modulation of WSS port diffraction energy according to any one of claims 1-5.

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