Optoelectronic Fusion Computing System
Through the photoelectric fusion computing system, combined with optical computing and electrical control technology, the shortcomings in computing power and energy consumption efficiency of the existing electronic computing architecture are solved, and a high-performance and low-power computing system is realized.
Patent Information
- Application Number
- CN202510157324.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-13
- Publication Date
- 2025-05-02
- Estimated Expiration
- 2045-02-13
AI Technical Summary
With the bottlenecks of von Neumann architecture and the development of Moore's Law, existing electronic computing architectures are difficult to meet the demands of high-performance computing for system computing power and energy consumption efficiency.
The optical and electrical fusion computing system is adopted to realize high-speed computing of data in the optical computing domain through the optical computing system, and control the input, output and storage of data through the electrical control system. Combined with feedback control and stabilizing the working status of other modules, a high-performance and low-power computing system is built.
It realizes efficient data calculation, improves computing power density and energy consumption efficiency, and meets the needs of high-performance computing.
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Figure CN119645926B_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the field of optoelectronic fusion intelligent computing technology, and in particular to an optoelectronic fusion computing system. Background Art
[0002] As the size of electronic transistors approaches the physical limit, quantum effects and short channel effects have caused the performance growth of integrated circuits to gradually slow down, and it is difficult to increase the computing power density of electronic chips; improving the computing power of the system mainly relies on the large-scale expansion of computing clusters, but the power consumption density of electronic computing has also continued to rise, and the heat dissipation and energy efficiency issues of large-scale computing clusters have become increasingly prominent; in large-scale computing systems, the delay and bandwidth of electronic communications have become the key to limiting overall performance. Therefore, the electronic computing architecture based on electronic computing has been unable to meet the needs of high-performance computing for system computing power and energy efficiency under the bottleneck of the von Neumann architecture and the limited development of Moore's Law.
[0003] Optoelectronic fusion computing shows great potential advantages in computing power density and energy efficiency by combining the advantages of optical computing's high bandwidth, low loss, high data throughput parallel computing and electrical computing's complex nonlinearity and flexible storage. Optoelectronic synergy provides a new development path for improving the performance of computing systems. Summary of the invention
[0004] 1. Technical issues to be resolved
[0005] In order to solve at least one of the above-mentioned problems existing in high-performance computing in the prior art, an embodiment of the present invention provides an optoelectronic fusion computing system, which realizes high-speed computing of data sent by an electrical control system in an optical computing domain through an optical computing system module; controls the input and storage of data through the electrical control system; and realizes high-speed computing of data based on the computing system of electrical control and optical computing through feedback control and stabilization of the working status of other modules.
[0006] (II) Technical solution
[0007] In view of the above technical problems, an embodiment of the present invention proposes an optoelectronic fusion computing system.
[0008] According to a first aspect of the present invention, there is provided an optoelectronic fusion computing system, comprising: a multi-wavelength laser light source, a spectrometer, a signal modulation module, an optical computing system, an electrical control system and an oscilloscope, wherein the multi-wavelength laser light source is used to generate optical carrier signals of N different wavelengths with a preset power distribution, and to perform power splitting on each optical carrier signal according to a preset ratio to obtain an optical carrier signal of a first ratio and an optical carrier signal of a second ratio, wherein the optical carrier signal of the first ratio is transmitted to the spectrometer for optical power monitoring; the optical carrier signal of the second ratio is transmitted to the signal modulation module as a carrier signal for optical computing; N is a positive integer greater than 1; and the first ratio is less than the second ratio; the spectrometer is used to Receive an optical carrier signal of a first ratio, analyze the relative intensity of each wavelength in the optical carrier signal of the first ratio, obtain light intensity information, and transmit the light intensity information to the electrical control system; a signal modulation module is used to adjust and control the input power of the optical carrier signal of each wavelength in the optical carrier signal of the second ratio according to the electrical signal of the electrical control system, and load the data to be calculated to the optical carrier signal of each corresponding wavelength through electro-optical modulation; an optical computing system is used to realize controllable calculations on the optical computing domain under the control of the electrical control system; the electrical control system is used to manage the input, output storage of data and monitor and feedback control other modules; an oscilloscope is used to calibrate and monitor the optical computing system and the electrical control system.
[0009] In some exemplary embodiments, the multi-wavelength laser light source includes a multi-wavelength laser array, a power beam splitter array and an N×1 combiner which are connected in sequence, wherein the multi-wavelength laser array includes N lasers, and the N lasers are used to generate N laser carrier signals of different wavelengths; the power beam splitter array includes N 1×2 power beam splitters, and the N 1×2 power beam splitters are used to perform power splitting on each laser carrier signal according to a preset ratio to obtain an optical carrier signal of a first ratio and an optical carrier signal of a second ratio; and transmit the optical carrier signal of the first ratio to the N×1 combiner, and output the optical carrier signal of the second ratio to the signal modulation module; the N×1 combiner is used to combine the light beams of the received optical carrier signal of the first ratio and multiplex them into the same channel.
[0010] In some exemplary embodiments, the electrical control system performs coarse adjustment on the laser stable power according to the light intensity information; and performs fine adjustment on the laser stable power according to the light intensity information through the signal modulation module.
[0011] In some exemplary embodiments, the signal modulation module includes a variable optical attenuator array, an electro-optical modulator array, and an N×1 wavelength division multiplexer that are connected in sequence, wherein the variable optical attenuator array includes N variable optical attenuators, and the variable optical attenuator array is used to accurately attenuate and adjust the light intensity distribution of each wavelength according to the control signal sent by the electrical chip, so that the adjusted light intensity of each wavelength can match the optical computing system; the electro-optical modulator array includes N electro-optical modulators, and the electro-optical modulator array is used to load and modulate the data to be calculated sent by the electrical control system onto the corresponding optical carrier signal at high speed; the N×1 wavelength division multiplexer is used to multiplex the modulated optical carrier signals of N wavelengths into a single channel for propagation, so as to reduce the relative changes of multi-wavelength signals.
[0012] In some exemplary embodiments, the optical computing system includes a 1×N on-chip integrated wavelength division multiplexer, an on-chip optical computing array, an off-chip optical amplifier, and an off-chip photodetector array that are connected in sequence, wherein the 1×N on-chip integrated wavelength division multiplexer is used to separate multi-wavelength composite light in a single channel on-chip so that the optical carrier signal of each wavelength can be independently input into the on-chip optical computing array, and the optical response characteristics of each optical computing device in the on-chip optical computing array are controlled by an electrical control system to achieve specific operations in the optical computing domain; the off-chip optical amplifier is used to relay and amplify the output light that passes through the on-chip optical computing array and carries the calculation results to improve the signal-to-noise ratio of the signal; the off-chip photodetector array includes M photodetectors, which are used to output the intensity information of the light in the form of a photocurrent signal to an oscilloscope through a photoelectric conversion process, wherein M is a positive integer greater than or equal to 1.
[0013] In some exemplary embodiments, the optical computing system further includes an optical router, an optical nonlinear unit, and an off-chip photodetector array and an on-chip optical computing array are simultaneously integrated on the chip.
[0014] In some exemplary embodiments, the on-chip optical computing array includes at least one of a unit structure based on a Mach-Zehnder interferometer, a unit structure based on a microring filter, a unit structure based on a multimode interference coupler, a unit structure based on diffraction optics, a unit structure based on interference optics, a unit structure based on wavelength division multiplexing-demultiplexing, and a unit structure based on an adjustable optical amplifier or an optical attenuator.
[0015] In some exemplary embodiments, the electrical control system includes a transimpedance amplifier array, an electrical control chip, a high-speed analog-to-digital converter, a high-speed digital-to-analog converter, and an electrical storage device, wherein the transimpedance amplifier array includes M transimpedance amplifiers, the transimpedance amplifier array is used to convert the photocurrent signal into a voltage signal, and amplify the voltage signal to a voltage range that the electrical control chip can process; a high-speed analog-to-digital converter is used to sample and quantize the calculation results represented by analog signals, and send the processed digital signals to the electrical control chip; the electrical control chip is used to process feedback signals from the electrical storage device and other modules, and then send data and generate control signals; receive digital signals from the spectrometer to provide control signals for the multi-wavelength laser array in the multi-wavelength light source module and the variable optical attenuator array in the signal modulation module; continuously access the data to be calculated from the electrical storage device and send it to the high-speed digital-to-analog converter; receive feedback signals from the optical computing system, and then send them to the high-speed digital-to-analog converter after processing; and send system status information to the oscilloscope; the high-speed digital-to-analog converter is used to convert the digital control signal of the electrical control chip into an analog signal, thereby driving the analog signal module, wherein the analog signal module includes a multi-wavelength laser light source, a signal modulation module, and an optical computing system; An electronic memory used to store data to be processed.
[0016] In some exemplary embodiments, before the operation begins, the oscilloscope is used to calibrate the optical computing system and the electrical control system; and during the operation, the oscilloscope is used to monitor the operation results.
[0017] In some exemplary embodiments, the electrical control chip includes a field programmable gate array or a dedicated integrated circuit of an operator, a register, a memory, and a digital-to-analog converter; the electrical control chip can design corresponding computing functions as needed to perform subsequent supplementary calculations on complex computing tasks after optical computing processing.
[0018] (III) Beneficial effects
[0019] It can be seen from the above technical solutions that the optoelectronic fusion computing system provided by the embodiment of the present invention has at least the following beneficial effects:
[0020] The optical computing system module is used to perform high-speed calculations on the data sent by the electrical control system in the optical computing domain. The electrical control system controls the input and storage of data, and feedback controls and stabilizes the working status of other modules. A high-performance, low-power computing system is built using the optoelectronic fusion computing mode of optical computing and electrical control, thereby improving the efficiency of data computing. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] 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:
[0022] Figure 1 A schematic diagram of the structure of the optoelectronic fusion computing system architecture according to an embodiment of the present invention is shown;
[0023] Figure 2 A schematic diagram of the structure of a multi-wavelength laser light source according to an embodiment of the present invention is shown;
[0024] Figure 3 A schematic diagram of the structure of a signal modulation module according to an embodiment of the present invention is shown;
[0025] Figure 4 A schematic diagram of the structure of an optical computing system according to an embodiment of the present invention is shown;
[0026] Figure 5 The schematic diagram of the structure of the electric control system according to the embodiment of the present invention is shown schematically.
[0027] Reference numerals:
[0028] 1-Multi-wavelength laser light source; 11-Multi-wavelength laser array; 12-Power beam splitter array; 13-N×1 beam combiner; 2-Spectrometer; 3-Signal modulation module; 31-Variable optical attenuator array; 32-Electro-optic modulator array; 33-N×1 wavelength division multiplexer; 4-Optical computing system; 41-1×N on-chip integrated wavelength division multiplexer; 42-On-chip optical computing array; 43-Off-chip optical amplifier; 44-Off-chip photodetector array; 5-Electrical control system; 51-Transimpedance amplifier array; 52-High-speed analog-to-digital converter; 53-Electrical control chip; 54-High-speed digital-to-analog converter; 55-Electrical storage; 6-Oscilloscope. DETAILED DESCRIPTION
[0029] In order to make the purpose, technical scheme and advantages of the present invention more clearly understood, the present invention is further described in detail below in combination with specific embodiments and with reference to the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0030] Figure 1 The schematic diagram shows the structure of the optoelectronic fusion computing system architecture according to an embodiment of the present invention.
[0031] like Figure 1As shown, the optoelectronic fusion computing system architecture according to an embodiment of the present invention includes: a multi-wavelength laser light source 1, a spectrometer 2, a signal modulation module 3, an optical computing system 4, an electrical control system 5 and an oscilloscope 6, wherein the multi-wavelength laser light source 1 is used to generate N optical carrier signals of different wavelengths with a preset power distribution, and perform power splitting on each optical carrier signal according to a preset ratio to obtain an optical carrier signal of a first ratio and an optical carrier signal of a second ratio, wherein the optical carrier signal of the first ratio is transmitted to the spectrometer 2 for optical power monitoring; the optical carrier signal of the second ratio is transmitted to the signal modulation module 3 as a carrier signal for optical computing; N is a positive integer greater than 1; and the first ratio is less than the second ratio; the spectrometer 2 is used Receive an optical carrier signal of a first ratio, analyze the relative intensity of each wavelength in the optical carrier signal of the first ratio, obtain light intensity information, and transmit the light intensity information to the electrical control system 5; a signal modulation module 3 is used to adjust and control the input power of the optical carrier signal of each wavelength in the optical carrier signal of the second ratio according to the electrical signal of the electrical control system 5, and load the data to be calculated to the optical carrier signal of each corresponding wavelength through electro-optical modulation; an optical computing system 4 is used to realize controllable calculations in the optical operation domain under the control of the electrical control system 5; the electrical control system 5 is used to manage the input, output storage of data and monitor and feedback control other modules; an oscilloscope 6 is used to calibrate and monitor the optical computing system 4 and the electrical control system 5.
[0032] It should be noted that Figure 1 The solid line connections in the figure represent the propagation of light in optical interconnect structures such as optical fibers and optical waveguides; the dotted line connections represent the electrical propagation of current or voltage.
[0033] In the embodiment of the present invention, the optical computing system 4 module is used to realize high-speed computing of the data sent by the electrical control system 5 in the optical computing domain; the electrical control system 5 controls the input and storage of data, and the working states of other modules are controlled and stabilized through feedback, and a high-performance, low-power computing system is built using the optoelectronic fusion computing mode of optical computing and electrical control, thereby improving the efficiency of data computing.
[0034] Figure 2 The structural diagram of the multi-wavelength laser light source 1 according to an embodiment of the present invention is schematically shown.
[0035] like Figure 2As shown, the multi-wavelength laser light source 1 according to an embodiment of the present invention includes a multi-wavelength laser array 11, a power beam splitter array 12 and an N×1 beam combiner 13 which are connected in sequence, wherein the multi-wavelength laser array 11 includes N lasers, and the N lasers are used to generate N laser carrier signals of different wavelengths, wherein the stable working power of each laser is determined according to the required calculation parameters; the power beam splitter array 12 includes N 1×2 power beam splitters, and the N 1×2 power beam splitters are used to perform power beam splitting on each laser carrier signal according to a preset ratio to obtain a first ratio of optical carrier signals and a second ratio of optical carrier signals; and transmit the first ratio of optical carrier signals to the N×1 beam combiner 13, and output the second ratio of optical carrier signals to the signal modulation module 3; the N×1 beam combiner 13 is used to combine the light beams of the received first ratio of optical carrier signals, and multiplex them into the same channel for subsequent analysis and monitoring.
[0036] For example, a 1×2 power beam splitter uses a 90:10 power beam splitter to split the laser carrier signal at a power ratio of 90:10, obtaining a first beam accounting for 10% and a second beam accounting for 90%. The first beam accounting for 10% is passed to the N×1 combiner 13, and the second beam accounting for 90% is output to the signal modulation module 3.
[0037] It should be noted that Figure 2 The solid line connection in the figure represents the light beam of the optical carrier signal of the second ratio after being split by the power splitter array 12 and output to the next module; the dotted line connection represents the light beam of the optical carrier signal of the first ratio after being split by the power splitter array 12 and passing through the N×1 combiner 13.
[0038] In the embodiment of the present invention, the electric control system 5 performs coarse adjustment on the laser stable power according to the light intensity information; and the signal modulation module 3 performs fine adjustment on the laser stable power according to the light intensity information.
[0039] Figure 3 The structure diagram of the signal modulation module 3 according to the embodiment of the present invention is schematically shown.
[0040] like Figure 3As shown, the signal modulation module 3 according to the embodiment of the present invention includes a variable optical attenuator array 31, an electro-optical modulator array 32 and an N×1 wavelength division multiplexer 33 which are connected in sequence, wherein the variable optical attenuator array 31 includes N variable optical attenuators, and the variable optical attenuator array 31 is used to accurately attenuate and adjust the light intensity distribution of each wavelength according to the control signal sent by the electrical chip, so that the adjusted light intensity of each wavelength can match the optical computing system 4; the electro-optical modulator array 32 includes N electro-optical modulators, and the electro-optical modulator array 32 is used to load and modulate the data to be calculated sent by the electrical control system 5 to the corresponding optical carrier signal at high speed; the N×1 wavelength division multiplexer 33 is used to multiplex the modulated optical carrier signals of N wavelengths into a single channel for propagation, so as to reduce the relative changes of multi-wavelength signals.
[0041] It should be noted that Figure 3 The solid line connections in the figure represent the propagation of light in optical interconnect structures such as optical fibers and optical waveguides; the dotted line connections represent the electrical propagation of current or voltage.
[0042] Figure 4 The structural diagram of the optical computing system 4 according to the embodiment of the present invention is schematically shown.
[0043] like Figure 4 As shown, the optical computing system 4 according to the embodiment of the present invention includes a 1×N on-chip integrated wavelength division multiplexer 41, an on-chip optical computing array 42, an off-chip optical amplifier 43 and an off-chip photodetector array 44 which are connected in sequence, wherein the 1×N on-chip integrated wavelength division multiplexer 41 is used to separate the multi-wavelength composite light in a single channel on-chip so that the optical carrier signal of each wavelength can be independently input into the on-chip optical computing array 42; the on-chip optical computing array 42 controls the optical response characteristics of each optical computing device in the on-chip optical computing array 42 through the electrical control system 5 to realize specific operations in the optical computing domain; the off-chip optical amplifier 43 is used to relay and amplify the output light that passes through the on-chip optical computing array 42 and carries the calculation results to improve the signal-to-noise ratio of the signal; the off-chip photodetector array 44 includes M photodetectors, which are used to output the intensity information of the light in the form of a photocurrent signal to the oscilloscope 6 through a photoelectric conversion process, wherein M is a positive integer greater than or equal to 1. Optionally, the on-chip optical computing array 42 includes at least one of a unit structure based on a Mach-Zehnder interferometer, a unit structure based on a microring filter, a unit structure based on a multimode interference coupler, a unit structure based on diffraction optics, a unit structure based on interference optics, a unit structure based on wavelength division multiplexing-demultiplexing, and a unit structure based on an adjustable optical amplifier or an optical attenuator.
[0044] It should be noted that Figure 4The solid line connection in the figure represents the propagation of the laser signal in optical interconnection structures such as optical fiber and optical waveguide; the dotted line connection represents the photocurrent signal obtained after passing through the photodetector.
[0045] In the embodiment of the present invention, the optical computing system 4 may further include an optical router, an optical nonlinear unit, and an off-chip photodetector array 44 and an on-chip optical computing array 42 integrated on the chip at the same time.
[0046] Figure 5 The schematic diagram of the structure of the electric control system 5 according to the embodiment of the present invention is shown schematically.
[0047] like Figure 5 As shown, the electric control system 5 according to the embodiment of the present invention includes a transimpedance amplifier array 51, an electric control chip 53, a high-speed analog-to-digital converter 52, a high-speed digital-to-analog converter 54 and an electric storage device 55, wherein the transimpedance amplifier array 51 includes M transimpedance amplifiers, and the transimpedance amplifier array 51 is used to convert the photocurrent signal into a voltage signal, and amplify the voltage signal to a voltage range that the electric control chip 53 can process; the high-speed analog-to-digital converter 52 is used to sample and quantize the calculation results represented by analog signals, and send the processed digital signals to the electric control chip 53; the electric control chip 53 is used to process the feedback signals from the electric storage device 55 and other modules, and then send data and generate control signals; receive The digital signal from the spectrometer 2 gives the control signal of the multi-wavelength laser array 11 in the multi-wavelength light source module and the variable optical attenuator array 31 in the signal modulation module 3; the data to be calculated is continuously accessed from the electrical storage 55 and sent to the high-speed digital-to-analog converter 54; the feedback signal from the optical computing system 4 is received, and then sent to the high-speed digital-to-analog converter 54 after processing; and the system status information is sent to the oscilloscope 6; the high-speed digital-to-analog converter 54 is used to convert the digital control signal of the electrical control chip 53 into an analog signal, thereby driving the analog signal module, wherein the analog signal module includes the multi-wavelength laser light source 1, the signal modulation module 3 and the optical computing system 4; the electrical storage 55 is used to store the data to be calculated. Optionally, the electrical control chip 53 includes a field programmable gate array or a dedicated integrated circuit of an operator, a register, a memory and a digital-to-analog converter; the electrical control chip 53 can design corresponding computing functions according to needs, which is used for subsequent supplementary calculations of complex computing tasks after optical computing processing.
[0048] It should be noted that Figure 5 The solid line represents that the electric control system 5 receives feedback signals from other modules; the dotted line represents that the electric control system 5 sends data signals and control signals.
[0049] In some exemplary embodiments, the oscilloscope 6 is used to calibrate the optical computing system 4 and the electrical control system 5; and during the operation, the oscilloscope 6 is used to monitor the operation results.
[0050] The optoelectronic fusion computing system architecture provided by the present invention combines the advantages of high data bandwidth, high data throughput, and low power consumption of optical computing with the advantages of flexible storage, post-processing, and regulation of electrical computing, thereby achieving complementary advantages of optoelectronic collaborative computing, thereby better meeting the current computing system's continuously growing demand for computing power density and computing efficiency.
[0051] The above specific embodiments further illustrate the purpose, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above are only specific embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. An optoelectronic fusion computing system, characterized in that: It includes a multi-wavelength laser light source, a spectrometer, a signal modulation module, an optical computing system, an electrical control system and an oscilloscope. Wherein, the multi-wavelength laser light source is used to generate N optical carrier signals of different wavelengths with a preset power distribution, and perform power splitting on each optical carrier signal according to a preset ratio to obtain an optical carrier signal of a first ratio and an optical carrier signal of a second ratio, wherein the optical carrier signal of the first ratio is transmitted to the spectrometer for optical power monitoring; the optical carrier signal of the second ratio is transmitted to the signal modulation module as a carrier signal for optical calculation; N is a positive integer greater than 1; and the first ratio is smaller than the second ratio; The spectrometer is used to receive the optical carrier signal of the first ratio, analyze the relative magnitude of the intensity of each wavelength in the optical carrier signal of the first ratio, obtain light intensity information, and transmit the light intensity information to the electrical control system; The signal modulation module is used to adjust and control the input power of the optical carrier signal of each wavelength in the optical carrier signal of the second ratio according to the electrical signal of the electrical control system, and to load the data to be calculated onto the optical carrier signal of each corresponding wavelength through electro-optical modulation; The optical computing system is used to implement controllable computing on the optical computing domain under the control of the electrical control system; The electrical control system is used to manage the input and output storage of data and monitor and feedback control other modules; The oscilloscope is used to calibrate and monitor the optical computing system and the electrical control system, The optical computing system includes a 1×N on-chip integrated wavelength division multiplexer, an on-chip optical computing array, an off-chip optical amplifier, and an off-chip photodetector array, which are connected in sequence. The 1×N on-chip integrated wavelength division multiplexer is used to separate multi-wavelength composite light in a single channel on-chip, so that the optical carrier signal of each wavelength can be independently input into the on-chip optical computing array; The on-chip optical computing array controls the optical response characteristics of each optical computing device in the on-chip optical computing array through the electrical control system to achieve specific operations in the optical computing domain; The off-chip optical amplifier is used to relay and amplify the output light that passes through the on-chip optical computing array and carries the computing result, so as to improve the signal-to-noise ratio of the signal; The off-chip photodetector array includes M photodetectors, which are used to output light intensity information in the form of photocurrent signals to the oscilloscope through a photoelectric conversion process, wherein M is a positive integer greater than or equal to 1.
2. The system according to claim 1, characterized in that The multi-wavelength laser light source comprises a multi-wavelength laser array, a power beam splitter array and an N×1 beam combiner which are sequentially connected. Wherein, the multi-wavelength laser array includes N lasers, and the N lasers are used to generate laser carrier signals of N different wavelengths; The power beam splitter array includes N 1×2 power beam splitters, and the N 1×2 power beam splitters are used to perform power beam splitting on each of the laser carrier signals according to a preset ratio to obtain an optical carrier signal of a first ratio and an optical carrier signal of a second ratio; and transmit the optical carrier signal of the first ratio to the N×1 beam combiner, and output the optical carrier signal of the second ratio to the signal modulation module; The N×1 beam combiner is used to combine the light beams of the received optical carrier signals of the first ratio and multiplex them into the same channel.
3. The system according to claim 2, characterized in that The electrical control system roughly adjusts the laser stable power according to the light intensity information; and The signal modulation module is used to finely control the laser stable power according to the light intensity information.
4. The system according to claim 1, characterized in that The signal modulation module includes a variable optical attenuator array, an electro-optical modulator array and an N×1 wavelength division multiplexer which are connected in sequence. The variable optical attenuator array includes N variable optical attenuators, and the variable optical attenuator array is used to accurately attenuate and adjust the light intensity distribution of each wavelength according to the control signal sent by the electronic chip, so that the adjusted light intensity of each wavelength can match the optical computing system; The electro-optic modulator array includes N electro-optic modulators, and the electro-optic modulator array is used to load and modulate the data to be calculated sent by the electrical control system onto the corresponding optical carrier signal at high speed; The N×1 wavelength division multiplexer is used to multiplex modulated optical carrier signals of N wavelengths into a single channel for propagation, so as to reduce the relative change of multi-wavelength signals.
5. The system according to claim 1, characterized in that The optical computing system further includes an optical router, an optical nonlinear unit; and The off-chip photodetector array and the on-chip optical computing array are integrated onto the chip simultaneously.
6. The system according to claim 1, characterized in that The on-chip optical computing array includes at least one of a unit structure based on a Mach-Zehnder interferometer, a unit structure based on a microring filter, a unit structure based on a multimode interference coupler, a unit structure based on diffraction optics, a unit structure based on interference optics, a unit structure based on wavelength division multiplexing-demultiplexing, and a unit structure based on an adjustable optical amplifier or an optical attenuator.
7. The system according to claim 1, characterized in that The electric control system includes a transimpedance amplifier array, an electric control chip, a high-speed analog-to-digital converter, a high-speed digital-to-analog converter and an electric storage device. Wherein, the transimpedance amplifier array includes M transimpedance amplifiers, and the transimpedance amplifier array is used to convert the photocurrent signal into a voltage signal, and amplify the voltage signal to a voltage range that can be processed by the electrical control chip; The high-speed analog-to-digital converter is used to sample and quantize the calculation results represented by analog signals, and send the processed digital signals to the electrical control chip; The electric control chip is used to process feedback signals from the electric storage and other modules, and then send data and generate control signals; receive digital signals from the spectrometer to provide control signals for the multi-wavelength laser array in the multi-wavelength light source module and the variable optical attenuator array in the signal modulation module; continuously access data to be calculated from the electric storage and send it to the high-speed digital-to-analog converter; receive feedback signals from the optical computing system, and then send them to the high-speed digital-to-analog converter after processing; and send system status information to the oscilloscope; The high-speed digital-to-analog converter is used to convert the digital control signal of the electric control chip into an analog signal, thereby driving the analog signal module, wherein the analog signal module includes a multi-wavelength laser light source, a signal modulation module and an optical computing system; The electronic memory is used to store data to be calculated.
8. The system according to claim 1, characterized in that The oscilloscope is used to calibrate the optical computing system and the electrical control system before the operation begins; and During the operation process, the oscilloscope is used to monitor the operation results.
9. The system according to claim 7, characterized in that The electric control chip includes a field programmable gate array or a dedicated integrated circuit of an arithmetic unit, a register, a memory, and a digital-to-analog converter; The electric control chip can be designed with corresponding computing functions as required, and is used for subsequent supplementary calculations of complex computing tasks after optical computing processing.
Citation Information
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