Double-micro-ring coupling system for realizing optical nonlinear response

Abstract

The invention provides a double-micro-ring coupling system for realizing optical nonlinear response, and relates to the technical field of microwave photons. The double micro-ring coupling system comprises a first micro-ring waveguide; the second micro-ring waveguide is coupled with the first micro-ring waveguide, a splitting ratio regulation and control module is arranged at the coupling position of the first micro-ring waveguide and the second micro-ring waveguide and used for determining the optical coupling coefficient between the first micro-ring waveguide and the second micro-ring waveguide, and the first micro-ring waveguide and the second micro-ring waveguide are each provided with a gain regulation and control module and a phase regulation and control module; parameters of the gain regulation and control module and the phase regulation and control module are regulated, and when the difference value between the net gain of the first micro-ring waveguide and the net loss of the second micro-ring waveguide is larger than or equal to an optical coupling coefficient, or the difference value between the net loss of the first micro-ring waveguide and the net gain of the second micro-ring waveguide is larger than or equal to the optical coupling coefficient, the phase regulation and control module is started. An optical nonlinear response is generated between the first micro-ring waveguide and the second micro-ring waveguide.

Description

Technical Field

[0001] The invention relates to the field of microwave photon technology, and in particular to a double micro-ring coupling system for realizing optical nonlinear response. Background Art

[0002] Parity-time symmetry (PT symmetry) originates from non-Hermitian physics. In quantum mechanics theory, closed systems are described by Hermitian Hamiltonians, whose eigenvalues ​​are real numbers and whose eigenvectors are mutually orthogonal. Non-Hermitian Hamiltonians describe open systems, that is, systems that exchange energy with their surroundings. Their eigenvalues ​​are complex numbers and their eigenvectors are non-orthogonal. In 1998, Bender discovered that under the conditions of parity-time reversal symmetry, non-Hermitian Hamiltonians also have real eigenvalues, which brought a milestone development to the study of non-Hermitian physics. In 2007, R. El-Ganainy proposed to construct a PT-symmetric optical system by using the mathematical isomorphism between the optical paraxial wave equation and the Schrödinger equation. The optical system then became an ideal platform for studying non-Hermitian physics, which quickly triggered research hotspots in related fields.

[0003] Optical neural networks are one of the hottest research directions at present, and are the most representative solution with the greatest potential to break through the von Neumann bottleneck and the bottleneck of the slowdown in the growth of Moore's Law. In the neural network model, some form of nonlinearity is needed to achieve the threshold of the neuron, respond to multiple optical inputs, and produce outputs suitable for driving other optical neurons, such as nonlinear activation functions. In this context, how to achieve pure optical nonlinear response is an important problem in modern optical research. Summary of the invention

[0004] In view of the above problems, the present invention provides a double micro-ring coupling system for realizing optical nonlinear response.

[0005] A double microring coupling system for realizing optical nonlinear response provided by the present invention comprises: a first microring waveguide; a second microring waveguide coupled with the first microring waveguide, a splitting ratio control module is provided at the coupling position of the first microring waveguide and the second microring waveguide, for determining the optical coupling coefficient between the first microring waveguide and the second microring waveguide, and the first microring waveguide and the second microring waveguide are respectively provided with a gain control module and a phase control module; wherein, the parameters of the gain control module and the phase control module are adjusted, and when the difference between the net gain of the first microring waveguide and the net loss of the second microring waveguide is greater than or equal to the optical coupling coefficient, or when the difference between the net loss of the first microring waveguide and the net gain of the second microring waveguide is greater than or equal to the optical coupling coefficient, an optical nonlinear response is generated between the first microring waveguide and the second microring waveguide.

[0006] According to an embodiment of the present invention, a dual microring coupling system for realizing optical nonlinear response further includes: an input waveguide coupled to one side of the first microring waveguide for inputting an optical signal; an output waveguide coupled to a side of the second microring waveguide away from the input waveguide for outputting an optical signal modulated by the first microring waveguide and the second microring waveguide.

[0007] According to an embodiment of the present invention, the first microring waveguide and the second microring waveguide are passive waveguide structures.

[0008] According to an embodiment of the present invention, the optical coupling coefficient is calculated as follows:

[0009]

[0010] Wherein, k represents the optical coupling coefficient, I1 represents the light intensity of the first microring waveguide after coupling, and I2 represents the light intensity of the second microring waveguide after coupling.

[0011] According to an embodiment of the present invention, the material of the first microring waveguide or the material of the second microring waveguide includes: one of a silicon waveguide, a lithium niobate waveguide and a silicon nitride waveguide.

[0012] According to an embodiment of the present invention, the type of the splitting ratio control module includes: one of a beam splitter, a directional coupler, a Mach-Zehnder modulator and a micro-ring filter.

[0013] According to an embodiment of the present invention, the type of the gain control module includes: a semiconductor optical amplifier or an erbium-doped fiber amplifier.

[0014] According to an embodiment of the present invention, types of the phase control module include: an electro-optic phase modulator or a thermo-optic phase modulator.

[0015] According to an embodiment of the present invention, the material of the input waveguide or the material of the output waveguide includes: a lithium niobate waveguide or a silicon nitride waveguide.

[0016] According to an embodiment of the present invention, the dual micro-ring coupling system is integrated on a silicon photonics platform through semiconductor technology.

[0017] According to the double micro-ring coupling system for realizing optical nonlinear response provided by the present invention, by adjusting the gain control module and the phase control module, when the difference between the net gain of one ring and the net loss of the other ring in the double micro-ring coupling system is greater than or equal to the optical coupling coefficient of the splitting ratio control module, the double micro-ring coupling system operates in a state of parity-time symmetry breaking, at which time the light intensity output by the output waveguide changes nonlinearly with the increase of the light intensity input by the input waveguide, and the optical nonlinear function is realized.

[0018] According to the dual micro-ring coupling system for realizing optical nonlinear response provided by the present invention, high-speed nonlinear conversion can be realized in the optical domain by utilizing the characteristics of large bandwidth, low latency and low power consumption of photon information processing.

[0019] The dual micro-ring coupling system for realizing optical nonlinear response provided by the present invention can be integrated on a silicon photonics platform through semiconductor technology, thereby reducing spatial redundancy. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The above contents and other objects, features and advantages of the present invention will become more apparent through the following description of the embodiments of the present invention with reference to the accompanying drawings, in which:

[0021] Figure 1 The structure of a double micro-ring coupling system for realizing optical nonlinear response according to an embodiment of the present invention is schematically shown.

[0022] [Reference Signs]

[0023] 1- Input waveguide;

[0024] 2- Output waveguide;

[0025] 31-first microring waveguide; 32-second microring waveguide;

[0026] 4- Splitting ratio control module;

[0027] 5-Gain control module;

[0028] 6-Phase control module. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solutions and advantages of the present invention clearer, the present invention is further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention. The terms used herein are only for describing specific embodiments and are not intended to limit the present invention. The terms "including", "comprising", etc. used herein indicate the existence of the features, steps, operations and / or components, but do not exclude the existence or addition of one or more other features, steps, operations or components.

[0030] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or can communicate with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] In the description of the present invention, it should be understood that the terms "longitudinal", "length", "circumferential", "front", "rear", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the subsystem or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0032] Throughout the drawings, the same elements are represented by the same or similar reference numerals. Conventional structures or configurations will be omitted when they may cause confusion in the understanding of the present invention. The shapes, sizes, and positional relationships of the components in the drawings do not reflect the actual size, proportion, and actual positional relationship.

[0033] Similarly, in order to simplify the present invention and help understand one or more of the various inventive aspects, in the above description of exemplary embodiments of the present invention, the various features of the present invention are sometimes grouped together into a single embodiment, figure or description thereof. The description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0034] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0035] When using expressions such as "at least one of A, B, and C, etc.", they should generally be interpreted according to the meaning of the expression commonly understood by those skilled in the art (for example, "a system having at least one of A, B, and C" should include but is not limited to a system having A alone, B alone, C alone, A and B, A and C, B and C, and / or A, B, C, etc.).

[0036] In the technical solution of the present invention, the collection, storage, use, processing, transmission, provision, disclosure and application of the data involved (including but not limited to user personal information) comply with the provisions of relevant laws and regulations, take necessary confidentiality measures, and do not violate public order and good morals.

[0037] Figure 1 The structure of a double micro-ring coupling system for realizing optical nonlinear response according to an embodiment of the present invention is schematically shown.

[0038] like Figure 1 As shown, the double micro-ring coupling system for realizing optical nonlinear response in this embodiment includes: a first micro-ring waveguide 31 and a second micro-ring waveguide 32 .

[0039] The second microring waveguide 32 is coupled to the first microring waveguide 31 , and a splitting ratio control module 4 is provided at the coupling point between the first microring waveguide 31 and the second microring waveguide 32 for determining the optical coupling coefficient between the first microring waveguide 31 and the second microring waveguide 32 .

[0040] The first micro-ring waveguide 31 and the second micro-ring waveguide 32 are respectively provided with a gain control module 5 and a phase control module 6. The gain control module 5 is used to control the gain of the optical signal, and the phase control module 6 is used to control the phase of the optical signal.

[0041] When the optical gain in a single ring is greater than the optical loss in the ring, it is manifested as a net gain, and when the optical gain in a single ring is less than the optical loss in the ring, it is manifested as a net loss. By adjusting the parameters of the gain control module 5 and the phase control module 6, when the difference between the net gain of the first micro-ring waveguide 31 and the net loss of the second micro-ring waveguide 32 is greater than or equal to the optical coupling coefficient, or when the difference between the net loss of the first micro-ring waveguide 31 and the net gain of the second micro-ring waveguide 32 is greater than or equal to the optical coupling coefficient, the double micro-ring coupling system operates in a state of parity-time symmetry breaking, at which time the light intensity output by the output waveguide changes nonlinearly with the increase of the input light intensity of the input waveguide, and the optical nonlinear function is realized, that is, an optical nonlinear response is generated between the first micro-ring waveguide 31 and the second micro-ring waveguide 32.

[0042] On the basis of the above-mentioned embodiment, the double micro-ring coupling system for realizing optical nonlinear response in this embodiment further includes: an input waveguide 1 and an output waveguide 2 .

[0043] The input waveguide 1 is coupled to one side of the first microring waveguide 31 for inputting an optical signal.

[0044] The output waveguide 2 is coupled to a side of the second microring waveguide 32 away from the input waveguide 1 , and is used to output the optical signal modulated by the first microring waveguide 31 and the second microring waveguide 32 .

[0045] In this embodiment, the optical carrier carries data and realizes nonlinear response after entering the first microring waveguide 31 and the second microring waveguide 32 from the input waveguide 1 , and the processed optical carrier is output from the output waveguide 2 .

[0046] Based on the same principle as the above embodiment, by adjusting the parameters of the gain control module 5 and the phase control module 6, when the difference between the net gain of the first micro-ring waveguide 31 and the net loss of the second micro-ring waveguide 32 is greater than or equal to the optical coupling coefficient, or when the difference between the net loss of the first micro-ring waveguide 31 and the net gain of the second micro-ring waveguide 32 is greater than or equal to the optical coupling coefficient, the double micro-ring coupling system operates in a state of parity-time symmetry breaking. At this time, the light intensity output by the output waveguide changes nonlinearly with the increase of the input light intensity of the input waveguide, and the optical nonlinear function is realized, that is, an optical nonlinear response is generated between the input waveguide 1 and the output waveguide 2.

[0047] According to the dual micro-ring coupling system for realizing optical nonlinear response provided by the present invention, high-speed nonlinear conversion can be realized in the optical domain by utilizing the characteristics of large bandwidth, low latency and low power consumption of photon information processing.

[0048] On the basis of the above-mentioned embodiments, in the double micro-ring coupling system for realizing optical nonlinear response of this embodiment, the first micro-ring waveguide 31 and the second micro-ring waveguide 32 are passive waveguide structures.

[0049] On the basis of the above-mentioned embodiment, in the dual micro-ring coupling system for realizing optical nonlinear response of this embodiment, the calculation method of the light splitting ratio control module 4 to determine the optical coupling coefficient is:

[0050]

[0051] Wherein, k represents the optical coupling coefficient, I1 represents the light intensity of the first microring waveguide after coupling, and I2 represents the light intensity of the second microring waveguide after coupling.

[0052] The optical coupling coefficient k represents the ratio of light in one waveguide coupled to another waveguide. The optical coupling coefficient in this embodiment is determined based on the spacing between the first microring waveguide and the second microring waveguide and the coupling length.

[0053] On the basis of the above embodiments, in the double microring coupling system for realizing optical nonlinear response of this embodiment, the material of the first microring waveguide or the material of the second microring waveguide may include, for example, silicon waveguide, lithium niobate waveguide and silicon nitride waveguide.

[0054] The large refractive index difference of silicon waveguides allows light to be efficiently transmitted in silicon waveguides. Silicon waveguides can be combined with existing silicon-based microelectronics technology to achieve optoelectronic integration. In addition, silicon has a large thermo-optical effect and the transmission characteristics of light can be adjusted by heating.

[0055] Lithium niobate has a large nonlinear optical coefficient and can be used to achieve optical modulation, frequency conversion and other functions. Lithium niobate waveguides have a wide transparent window in the visible and infrared light ranges and are suitable for a variety of optical applications. In addition, lithium niobate also has a large electro-optic coefficient and can adjust the transmission characteristics of light through the electric field.

[0056] Silicon nitride has low light absorption and scattering losses, which can achieve low-loss light transmission. It also has high thermal stability and is suitable for applications in high-temperature environments.

[0057] On the basis of the above embodiments, in the dual micro-ring coupling system for realizing optical nonlinear response of this embodiment, the types of splitting ratio control modules may include, for example: a beam splitter, a directional coupler, a Mach-Zehnder modulator and a micro-ring filter.

[0058] A beam splitter is an optical device that can split a beam of light into two or more beams. It is a key part of most interferometers and is usually made of metal film or dielectric film.

[0059] Directional coupler (directional coupler-DC coupler) is a common microwave / millimeter wave component that can be used for signal isolation, separation and mixing, such as power monitoring, source output power stabilization, signal source isolation, transmission and reflection sweep frequency testing, etc. The main technical indicators include directivity, standing wave ratio, coupling degree, and insertion loss.

[0060] The Mach-Zehnder Modulator is a device that splits the input light into two equal signals that enter the two optical branches of the modulator. The two optical branches are made of electro-optical materials, and their refractive index changes with the size of the externally applied electrical signal. Since the change in the refractive index of the optical branch will cause a change in the signal phase, when the output ends of the two branch signal modulators are combined again, the synthesized optical signal will be an interference signal with varying intensity, which is equivalent to converting the change in the electrical signal into the change in the optical signal, thus achieving the modulation of the light intensity. In short, the modulator can achieve modulation of different sidebands by controlling its bias voltage.

[0061] The basic structure of the microring filter includes a closed loop ring waveguide and one or two bus waveguides next to the loop, that is, single-channel and dual-channel microring resonators. The actual resonator can be in any shape, such as: circular, elliptical, racetrack, polygonal or spherical; the bus waveguide is generally a straight waveguide, as the input and output channel, there is a small coupling gap between the microring and the channel, and mutual coupling occurs.

[0062] On the basis of the above-mentioned embodiment, in the dual micro-ring coupling system for realizing optical nonlinear response of this embodiment, the type of gain control module may include, for example: semiconductor optical amplifier or erbium-doped fiber amplifier.

[0063] Semiconductor optical amplifier (SOA) is a PN junction device with a strained quantum well structure. External forward bias forms a population inversion. External light enters and causes stimulated radiation, forming optical signal amplification. Its amplification characteristics mainly depend on the dielectric properties of the active layer and the characteristics of the laser cavity. It has the advantages of supporting high speed, high bandwidth, low power consumption, high gain, miniaturization and easy integration.

[0064] Erbium-doped fiber amplifier (EDFA, Erbium Doped Fiber Application Amplifier, is an optical signal amplifier that has erbium ions Er3+ doped in the fiber core through which the signal passes.) is an optical fiber that has a small amount of rare earth element erbium (Er) ions doped in quartz fiber. It is the core of the erbium-doped fiber amplifier, which is a device that amplifies weak input optical signals without converting them into electrical signals.

[0065] On the basis of the above-mentioned embodiment, in the dual micro-ring coupling system for realizing optical nonlinear response of this embodiment, the type of the phase control module may include, for example: an electro-optic phase modulator or a thermo-optic phase modulator.

[0066] Electro-optic modulators are optical modulators based on the electro-optic effect. They control the power, phase and polarization of the laser beam through electronic control signals. The types include: electro-optic phase modulators, electro-optic polarization modulators and electro-optic amplitude modulators. In this embodiment, an electro-optic phase modulator is selected, in which the electric field (applied to the crystal through electrodes) changes the phase delay of the laser beam after it enters the crystal. The polarization state of the incident light beam usually needs to be parallel to one of the optical axes of the crystal, so that the polarization state of the light beam does not change.

[0067] A thermo-optic modulator is a device that uses any form of energy to change the temperature of silicon materials and modulate the passing light signal. The thermo-optic effect is that the molecular or crystal structure of a material changes at different temperatures, thereby changing the optical properties of the material.

[0068] On the basis of the above-mentioned embodiments, in the double micro-ring coupling system for realizing optical nonlinear response of the present embodiment, the material of the input waveguide or the material of the output waveguide may include, for example, a lithium niobate waveguide or a silicon nitride waveguide.

[0069] On the basis of the above-mentioned embodiments, in the double micro-ring coupling system for realizing optical nonlinear response of the present embodiment, the double micro-ring coupling system is integrated on a silicon photonics platform through semiconductor technology.

[0070] Silicon photonics is an optical communication technology that uses laser beams instead of electronic semiconductor signals to transmit data. It is a new generation of technology based on silicon and silicon-based substrate materials, using existing CMOS processes to develop and integrate optical devices. Its biggest advantage is that it has a very high transmission rate, which can make the data transmission speed between processor cores 100 times faster or even higher, and the power efficiency is also very high. The goal of silicon optical technology is to integrate photoelectric conversion and transmission modules on the chip, making it possible to exchange optical signals between chips.

[0071] The double micro-ring coupling system for realizing optical nonlinear response provided by the present invention can be integrated on a silicon photonics platform through semiconductor technology, thereby reducing spatial redundancy.

[0072] The first micro-ring waveguide and the second micro-ring waveguide of this embodiment are not limited to specific shapes. As long as they can form an optical circuit to generate resonance, waveguides of other shapes are applicable to this technical solution.

[0073] According to the double micro-ring coupling system for realizing optical nonlinear response provided by the present invention, by adjusting the gain control module and the phase control module, when the difference between the net gain of one ring and the net loss of the other ring in the double micro-ring coupling system is greater than or equal to the optical coupling coefficient of the splitting ratio control module, the double micro-ring coupling system operates in a state of parity-time symmetry breaking, at which time the light intensity output by the output waveguide changes nonlinearly with the increase of the light intensity input by the input waveguide, and the optical nonlinear function is realized.

[0074] The flow chart and block diagram in the accompanying drawings illustrate the system architecture, functions and operations that may be implemented according to the system and method of various embodiments of the present invention. In this regard, each box in the flow chart or block diagram can represent a module, a program segment, or a part of a code, and the above-mentioned module, program segment, or a part of a code contains one or more executable instructions for realizing the specified logical function. It should also be noted that in some alternative implementations, the functions marked in the box can also occur in a different order from the order marked in the accompanying drawings. For example, two boxes represented in succession can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, depending on the functions involved. It should also be noted that each box in the block diagram or flow chart, and the combination of the boxes in the block diagram or flow chart can be implemented with a dedicated hardware-based system that performs a specified function or operation, or can be implemented with a combination of dedicated hardware and computer instructions.

[0075] It will be appreciated by those skilled in the art that the features described in the various embodiments of the present invention may be combined and / or combined in various ways, even if such combinations and / or combinations are not explicitly described in the present invention. In particular, without departing from the spirit and teachings of the present invention, the features described in the various embodiments of the present invention may be combined and / or combined in various ways. All of these combinations and / or combinations fall within the scope of the present invention.

[0076] The embodiments of the present invention are described above. However, these embodiments are only for the purpose of illustration, and are not intended to limit the scope of the present invention. Although each embodiment is described above, it does not mean that the measures in each embodiment cannot be used in combination advantageously. Without departing from the scope of the present invention, those skilled in the art may make various substitutions and modifications, which should all fall within the scope of the present invention.

Claims

1. A dual micro-ring coupling system for realizing optical nonlinear response, characterized in that: include: The first microring waveguide; A second micro-ring waveguide is coupled with the first micro-ring waveguide, and a splitting ratio control module is provided at the coupling point of the first micro-ring waveguide and the second micro-ring waveguide, for determining the optical coupling coefficient between the first micro-ring waveguide and the second micro-ring waveguide, and the first micro-ring waveguide and the second micro-ring waveguide are respectively provided with a gain control module and a phase control module; Wherein, the parameters of the gain control module and the phase control module are adjusted, and when the difference between the net gain of the first microring waveguide and the net loss of the second microring waveguide is greater than or equal to the optical coupling coefficient, or when the difference between the net loss of the first microring waveguide and the net gain of the second microring waveguide is greater than or equal to the optical coupling coefficient, an optical nonlinear response is generated between the first microring waveguide and the second microring waveguide.

2. The double micro-ring coupling system for realizing optical nonlinear response according to claim 1, characterized in that: Also includes: An input waveguide, coupled to one side of the first microring waveguide, for inputting an optical signal; The output waveguide is coupled to a side of the second microring waveguide away from the input waveguide, and is used to output the optical signal modulated by the first microring waveguide and the second microring waveguide.

3. The double micro-ring coupling system for realizing optical nonlinear response according to claim 1, characterized in that: The first microring waveguide and the second microring waveguide are passive waveguide structures.

4. The double micro-ring coupling system for realizing optical nonlinear response according to claim 1, characterized in that: The optical coupling coefficient is calculated as follows: Wherein, k represents the optical coupling coefficient, I1 represents the light intensity of the first microring waveguide after coupling, and I2 represents the light intensity of the second microring waveguide after coupling.

5. The double micro-ring coupling system for realizing optical nonlinear response according to claim 1, characterized in that: The material of the first microring waveguide or the material of the second microring waveguide includes: one of a silicon waveguide, a lithium niobate waveguide and a silicon nitride waveguide.

6. The double micro-ring coupling system for realizing optical nonlinear response according to claim 1, characterized in that: The type of the splitting ratio control module includes: one of a beam splitter, a directional coupler, a Mach-Zehnder modulator and a micro-ring filter.

7. The double micro-ring coupling system for realizing optical nonlinear response according to claim 1, characterized in that: The types of the gain control module include: semiconductor optical amplifier or erbium-doped fiber amplifier.

8. The double micro-ring coupling system for realizing optical nonlinear response according to claim 1, characterized in that: The types of the phase control module include: an electro-optic phase modulator or a thermo-optic phase modulator.

9. The double micro-ring coupling system for realizing optical nonlinear response according to claim 2, characterized in that: The material of the input waveguide or the material of the output waveguide includes: a lithium niobate waveguide or a silicon nitride waveguide.

10. The double micro-ring coupling system for realizing optical nonlinear response according to claim 1, characterized in that: The dual micro-ring coupling system is integrated on a silicon photonics platform through semiconductor technology.

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