WO2024119475A1 - Appareil de conversion photoélectrique, procédé de commande et dispositif de réseau - Google Patents

Appareil de conversion photoélectrique, procédé de commande et dispositif de réseau Download PDF

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Publication number
WO2024119475A1
WO2024119475A1 PCT/CN2022/137902 CN2022137902W WO2024119475A1 WO 2024119475 A1 WO2024119475 A1 WO 2024119475A1 CN 2022137902 W CN2022137902 W CN 2022137902W WO 2024119475 A1 WO2024119475 A1 WO 2024119475A1
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Prior art keywords
module
optical fiber
light beams
light
optical fibers
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PCT/CN2022/137902
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English (en)
Chinese (zh)
Inventor
王超
王天祥
凌云
姬春晖
杜明德
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华为技术有限公司
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Priority to PCT/CN2022/137902 priority Critical patent/WO2024119475A1/fr
Publication of WO2024119475A1 publication Critical patent/WO2024119475A1/fr

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    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/26—Optical coupling means
    • G02B6/32—Optical coupling means having lens focusing means positioned between opposed fibre ends
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/25—Arrangements specific to fibre transmission

Definitions

  • the embodiments of the present application relate to the field of communications, and in particular to a photoelectric conversion device, a control method, and a network device.
  • incoherent synthesis is achieved by wavelength division multiplexing; when the multiple beams are correlated beams, coherent synthesis is achieved by using a beam combiner. Whether it is coherent synthesis or incoherent synthesis, integrating multiple beams into one beam will cause optical loss. How to reduce optical loss and realize efficient signal transmission in the optical path has become a problem that technicians need to solve.
  • the embodiments of the present application provide a photoelectric conversion device, a control method and a network device for avoiding light loss caused by combining multiple light beams into one light beam and realizing efficient signal transmission in an optical path.
  • the present application provides a photoelectric conversion device, comprising a lens module and a photoelectric detection module; the lens module is connected to the photoelectric detection module via an optical path, and is connected to the light outlets of N optical fibers via an optical path, and is used to focus N light beams onto a detection target surface of the photoelectric detection module, the N light beams correspond to N light sources, and the N light sources correspond to the light inputs of the N optical fibers, where N is an integer greater than or equal to 2; the photoelectric detection module is used to perform photoelectric conversion on the N light beams focused onto the detection target surface of the photoelectric detection module.
  • the photoelectric conversion device includes a lens module and a photoelectric detection module, wherein the lens module is connected to the photoelectric detection module through an optical path, and is connected to the light outlets of N optical fibers through an optical path, and is used to focus the N light beams onto the detection target surface of the photoelectric detection module.
  • the photoelectric detection module is used to perform photoelectric conversion on the N light beams focused onto the detection target surface of the photoelectric detection module.
  • the N light beams are light beams emitted by N light sources, the light inlets of the N optical fibers correspond to the N light sources, and N is an integer greater than or equal to 2.
  • the lens module By using the lens module to directly focus the N light beams onto the detection target surface of the photoelectric detection module, the light loss caused by synthesizing the N light beams into one light beam by coherent synthesis or incoherent synthesis is reduced, thereby achieving the purpose of reducing light loss, thereby improving the transmission efficiency of optical signals.
  • the device further includes an optical fiber fixing module; the optical fiber fixing module is used to fix the N optical fibers.
  • the device also includes a beam aggregation module for aggregating and fixing N optical fibers, thereby providing a stable shape for the light spots on the detection target surface of the photoelectric detection module that are focused by the N light beams, so that the working area of the detection target surface of the photoelectric detection module tends to be stable, avoiding the situation where the photoelectric detection module cannot receive all the light signals of the N light beams due to the difficulty in controlling the positions of the N light beams, thereby improving the efficiency of photoelectric conversion.
  • a beam aggregation module for aggregating and fixing N optical fibers, thereby providing a stable shape for the light spots on the detection target surface of the photoelectric detection module that are focused by the N light beams, so that the working area of the detection target surface of the photoelectric detection module tends to be stable, avoiding the situation where the photoelectric detection module cannot receive all the light signals of the N light beams due to the difficulty in controlling the positions of the N light beams, thereby improving the efficiency of photoelectric conversion.
  • the optical fiber fixing module is connected to the N optical fibers, connected to the lens module through an optical path, and outputs the N light beams.
  • a beam focusing module is provided, connected to N optical fibers, connected to the lens module through an optical path, and outputs the N light beams.
  • a stable shape is provided for the light spots of the N light beams focused on the detection target surface of the photoelectric detection module, so that the working area of the detection target surface of the photoelectric detection module tends to be stable, and the situation that the photoelectric detection module cannot receive all the light signals of the N light beams due to the difficulty in controlling the positions of the N light beams is avoided, thereby improving the efficiency of photoelectric conversion.
  • the distance between the light outlets of the N optical fibers and the lens module is L1
  • the spot diameter of the N light beams on the lens module is, and the relationship between L1 and complies with the propagation law of Gaussian beams.
  • L1 is the distance between the light outlet of the N optical fibers and the lens module, and is the spot diameter of the N light beams on the lens module.
  • L1 is the distance between the light outlet of the N optical fibers and the lens module, and is the spot diameter of the N light beams on the lens module. The relationship between L1 and follows the propagation law of Gaussian beams.
  • a diameter of the lens module is D, and D is larger than.
  • D is greater than .
  • Making D greater than avoids unnecessary consumption of the light of the N light beams during transmission, thereby improving the efficiency and quality of optical signal transmission.
  • a distance between the lens module and a detection target surface of the photoelectric detection module is L2
  • a focal length of the lens module is F
  • L2 is less than or equal to F.
  • the distance between the lens module and the detection target surface of the photoelectric detection module is L2
  • the focal length of the lens module is F
  • L2 is less than or equal to F.
  • L2 is limited to be less than or equal to F, which further provides a direction for the design of the photoelectric conversion device.
  • the lens module includes an aspherical lens.
  • the lens module also includes a microlens array, and the microlenses of the microlens array correspond one-to-one to the optical fibers of the optical fiber fixing module, and are used to focus the N light beams output by the optical fiber fixing module onto the detection target surface of the photoelectric detection module.
  • the lens module further includes a reflector for changing the directions of the N light beams output by the optical fiber fixing module and refracting them to a detection target surface of the photoelectric detection module.
  • an angle between an axis of the reflector and an axis of the microlens group and/or an axis of the aspheric lens group is 45°.
  • the optical fiber fixing module includes an optical fiber array or a multi-core optical fiber.
  • the multi-core optical fiber includes 19 optical fibers, and the 19 optical fibers are arranged in a three-layer ring.
  • the innermost layer of the multi-core optical fiber includes 1 optical fiber
  • the middle layer of the multi-core optical fiber includes 6 optical fibers
  • the outermost layer of the multi-core optical fiber includes 12 optical fibers.
  • the distance between the innermost layer of the multi-core optical fiber and the middle layer of the multi-core optical fiber is 42 ⁇ m
  • the distance between the outermost layer of the multi-core optical fiber and the middle layer of the multi-core optical fiber is 48 ⁇ m.
  • a distance between adjacent optical fibers in the multi-core optical fiber is 42 ⁇ m.
  • the optical fiber array includes a linear optical fiber array or a two-dimensional optical fiber array.
  • a distance between adjacent optical fibers in the linear optical fiber array is 250 ⁇ m.
  • a distance between adjacent optical fibers in the two-dimensional optical fiber array is 250 ⁇ m.
  • a second aspect of an embodiment of the present application provides a method for controlling photoelectric conversion, which is applied to a device for photoelectric conversion, the device comprising a control module, a first photoelectric conversion device, and a second photoelectric conversion device, the method comprising:
  • the control module acquires wavelengths of N light beams, where the N light beams are light beams emitted by N light sources;
  • the control module determines whether the N light beams are coherent light
  • control module sends a first signal to the first photoelectric conversion device, the first signal indicating that the first photoelectric conversion device is connected to the light outlets of the N optical fibers through an optical path;
  • control module sends a second signal to the second photoelectric conversion device
  • the second signal indicates that the second photoelectric conversion device is connected to the light outlets of the N optical fibers through an optical path.
  • the first photoelectric conversion device includes a first lens module, a first photoelectric detection module and a first optical fiber fixing module, and the first optical fiber fixing module is used to fix the N optical fibers;
  • the first lens module is connected to the first photoelectric detection module through an optical path, and is used to focus the N light beams on the detection target surface of the first photoelectric detection module;
  • the first photoelectric detection module is used to convert the N light beams collected by the detection target surface of the first photoelectric detection module into electrical signals.
  • the first optical fiber fixing module is connected to the N optical fibers, connected to the first lens module via an optical path, and outputs the N light beams.
  • the distance between the light outlets of the N optical fibers and the first lens module is L1
  • the spot diameter of the N light beams on the first lens module is, and the relationship between L1 and complies with the propagation law of Gaussian beams.
  • the diameter of the first lens module is D, and D is larger than.
  • a distance between the first lens module and a detection target surface of the first photoelectric detection module is L2
  • a focal length of the first lens module is F
  • L2 is less than or equal to F.
  • the first lens module includes a first aspherical lens.
  • the first lens module also includes a first microlens array, and the microlenses of the first microlens array correspond one-to-one to the optical fibers of the first optical fiber fixing module, and are used to focus the N light beams output by the first optical fiber fixing module onto the detection target surface of the first photoelectric detection module.
  • the first lens module further includes a first reflector for changing the directions of the N light beams output by the first optical fiber fixing module and refracting them to a detection target surface of the first photoelectric detection module.
  • an angle between an axis of the first reflector and an axis of the first microlens group and/or an axis of the first aspheric lens group is 45°.
  • the first optical fiber fixing module includes a first optical fiber array or a first multi-core optical fiber.
  • a distance between adjacent optical fibers in the first multi-core optical fiber is 42 ⁇ m.
  • the first optical fiber array includes a first linear optical fiber array or a first two-dimensional optical fiber array.
  • a distance between adjacent optical fibers in the first linear optical fiber array is 250 ⁇ m.
  • a distance between adjacent optical fibers in the first two-dimensional optical fiber array is 250 ⁇ m.
  • the second photoelectric conversion device includes a second lens module, a second photoelectric detection module, and a second optical fiber fixing module, and the second optical fiber fixing module is used to fix the N optical fibers;
  • the second lens module is connected to the second photoelectric detection module through an optical path, and is used to focus the N light beams on the detection target surface of the second photoelectric detection module;
  • the second photoelectric detection module is used to convert the N light beams collected by the detection target surface of the second photoelectric detection module into electrical signals.
  • the second optical fiber fixing module is connected to the N optical fibers, connected to the second lens module via an optical path, and outputs the N light beams.
  • the distance between the light outlets of the N optical fibers and the second lens module is L1
  • the spot diameter of the N light beams on the second lens module is, and the relationship between L1 and complies with the propagation law of Gaussian beams.
  • the diameter of the first lens module is D, and D is larger than.
  • the distance between the second lens module and the detection target surface of the second photoelectric detection module is L2
  • the focal length of the second lens module is F
  • L2 is less than or equal to F.
  • the second lens module includes a first aspherical lens.
  • the second lens module also includes a second microlens array, and the microlenses of the second microlens array correspond one-to-one to the optical fibers of the second optical fiber fixing module, and are used to focus the N light beams output by the second optical fiber fixing module onto the detection target surface of the second photoelectric detection module.
  • the second lens module further includes a second reflector for changing the directions of the N light beams output by the second optical fiber fixing module and refracting them to the detection target surface of the second photoelectric detection module.
  • the angle between the axis of the second reflector and the axis of the second microlens group and/or the axis of the second aspheric lens group is 45°.
  • the second optical fiber fixing module includes a second optical fiber array or a second multi-core optical fiber.
  • the second multi-core optical fiber includes 19 optical fibers, and the 19 optical fibers are arranged in three layers in a circular shape.
  • the innermost layer of the 19 optical fibers includes 1 optical fiber
  • the middle layer of the 19 optical fibers includes 6 optical fibers
  • the outermost layer of the 19 optical fibers includes 12 optical fibers.
  • the distance between the innermost layer of the 19 optical fibers and the middle layer of the 19 optical fibers is 42 ⁇ m
  • the distance between the outermost layer of the 19 optical fibers and the middle layer of the 19 optical fibers is 48 ⁇ m.
  • a third aspect of the embodiments of the present application provides a method for controlling photoelectric conversion, which is applied to a device for photoelectric conversion.
  • the device includes a lens module and a photoelectric detection module.
  • the lens module is connected to the photoelectric detection module through an optical path, and is connected to the light outlets of N optical fibers through an optical path, and is used to focus N light beams onto a detection target surface of the photoelectric detection module.
  • the N light beams correspond to N light sources, and the light inlets of the N optical fibers correspond to the N light sources, where N is an integer greater than or equal to 2.
  • the photoelectric detection module is used to perform photoelectric conversion on the N light beams focused on the detection target surface of the photoelectric detection module.
  • the method includes:
  • the control module obtains the wavelengths of N light beams emitted by N light sources
  • the control module determines whether the N light beams are coherent light
  • the control module sends a first signal, the first signal indicating that L2 is less than F, where L2 is the distance between the lens module and the detection target surface of the photoelectric detection module, and F is the focal length of the lens module;
  • control module sends a second signal, where the second signal indicates that L2 is equal to F.
  • the device further includes an optical fiber fixing module
  • the optical fiber fixing module is used to fix the N optical fibers.
  • the optical fiber fixing module is connected to the N optical fibers, connected to the lens module via an optical path, and outputs the N light beams.
  • the distance between the light outlets of the N optical fibers and the lens module is L1
  • the spot diameter of the N light beams on the lens module is, and the relationship between L1 and complies with the propagation law of Gaussian beams.
  • a diameter of the lens module is D, and D is larger than.
  • the lens module includes an aspherical lens.
  • the lens module also includes a microlens array, and the microlenses of the microlens array correspond one-to-one to the optical fibers of the optical fiber fixing module, and are used to focus the N light beams output by the optical fiber fixing module onto the detection target surface of the photoelectric detection module.
  • the lens module further includes a reflector for changing the directions of the N light beams output by the optical fiber fixing module and refracting them to a detection target surface of the photoelectric detection module.
  • an angle between an axis of the reflector and an axis of the microlens group and/or an axis of the aspheric lens group is 45°.
  • the optical fiber fixing module includes an optical fiber array or a multi-core optical fiber.
  • a fourth aspect of an embodiment of the present application provides a network device, comprising an optoelectronic conversion device, a processor and a memory, wherein the memory is used to store instructions, and the processor is used to execute the instructions.
  • the device is such as the device described in the first aspect or any possible implementation manner of the first aspect.
  • a fifth aspect of an embodiment of the present application provides a network device, including a processor and a memory, wherein the memory is used to store instructions, and the processor is used to execute the instructions.
  • the processor executes the instructions, it executes the method described in the second aspect or any possible implementation method of the second aspect.
  • a sixth aspect of an embodiment of the present application provides a network device, including a processor and a memory, wherein the memory is used to store instructions, and the processor is used to execute the instructions.
  • the processor executes the instructions, the method described in any possible implementation method of the third aspect to the third aspect is executed.
  • a seventh aspect of an embodiment of the present application provides a computer-readable storage medium, characterized in that it includes a program, which, when executed on a computer, performs the method described in the second aspect to any possible implementation manner of the second aspect.
  • An eighth aspect of an embodiment of the present application provides a computer-readable storage medium, characterized in that it includes a program, which, when executed on a computer, enables the computer to execute the method described in the third aspect or any possible implementation manner of the third aspect.
  • a ninth aspect of the embodiments of the present application provides a computer program product, which includes a computer program or instructions.
  • the computer program or instructions When the computer program or instructions are run on a computer, the computer executes a method as described in any possible implementation method of the second aspect to the second aspect.
  • an embodiment of the present application provides a computer program product, which includes a computer program or instructions.
  • the computer program or instructions When the computer program or instructions are run on a computer, the computer executes a method as described in any possible implementation method of the third aspect to the third aspect.
  • a chip which includes at least one processor and at least one interface circuit, which is coupled to the processor, and the at least one interface circuit is used to perform transceiver functions and send instructions to at least one processor, and the at least one processor is used to run computer programs or instructions, which has the function of implementing the method of the second aspect, any possible implementation of the second aspect, the third aspect or any possible implementation of the third aspect mentioned above, and the function can be implemented by hardware, or by software, or by a combination of hardware and software, and the hardware or software includes one or more modules corresponding to the above functions.
  • FIG1 is a schematic diagram of a structure of a photoelectric conversion device provided in an embodiment of the present application.
  • FIG2 is another schematic diagram of the structure of a photoelectric conversion device provided in an embodiment of the present application.
  • FIG3a is a schematic structural diagram of a lens module provided in an embodiment of the present application.
  • FIG3b is a schematic structural diagram of an optical fiber fixing module provided in an embodiment of the present application.
  • FIG4 is another schematic diagram of the structure of a photoelectric conversion device provided in an embodiment of the present application.
  • FIG5 is a schematic diagram of a distribution of a light field of N light beams provided in an embodiment of the present application.
  • FIG7 is a cross-sectional view of a multi-core optical fiber provided in an embodiment of the present application.
  • FIG8 is a schematic diagram of another distribution of the light field of N light beams provided in an embodiment of the present application.
  • FIG9 is another schematic diagram of the structure of a photoelectric conversion device provided in an embodiment of the present application.
  • FIG10 is a schematic diagram of another distribution of the light field of N light beams provided in an embodiment of the present application.
  • FIG11 is another schematic diagram of the structure of a photoelectric conversion device provided in an embodiment of the present application.
  • FIG12 is a schematic diagram of a photoelectric conversion method provided in an embodiment of the present application.
  • FIG13 is another schematic diagram of the structure of a photoelectric conversion device provided in an embodiment of the present application.
  • FIG14 is another schematic diagram of a method for controlling photoelectric conversion provided in an embodiment of the present application.
  • FIG15 is a schematic diagram of a structure of a control module provided in an embodiment of the present application.
  • FIG16 is a schematic diagram of a structure of a network device provided in an embodiment of the present application.
  • FIG17 is another schematic diagram of the structure of a control module provided in an embodiment of the present application.
  • FIG. 18 is another schematic diagram of the structure of the network device provided in an embodiment of the present application.
  • Phased array antennas are widely used in radar and wireless communication systems due to their advantages such as high gain, beam agility, multi-beam, high reliability, and lightweight.
  • Antenna arrays often use multiple sub-arrays to allocate resources.
  • the fully connected architecture can realize multi-beam sharing of array resources, improve antenna gain, increase radiation distance, and support simultaneous communication for multiple users.
  • traditional electrical-based fully connected solutions are greatly limited in terms of performance such as the number of beams, power consumption, and bandwidth.
  • incoherent synthesis can be achieved by using wavelength division multiplexing; when multiple beams are correlated, coherent synthesis can be achieved by using a beam combiner. Whether it is coherent synthesis or incoherent synthesis, integrating multiple beams into one beam will cause optical loss. How to reduce optical loss and achieve efficient signal transmission in the optical path has become a problem that technicians need to solve.
  • the lens module and the photoelectric detection module can be used to focus and photoelectrically convert the N light beams emitted by N light sources.
  • the lens module is connected to the photoelectric detection module through an optical path, and is connected to the light outlets of N optical fibers through an optical path, so as to focus the N light beams onto the detection target surface of the photoelectric detection module;
  • the N light beams correspond to the N light sources, and the light inlets of the N optical fibers correspond to the N light sources, where N is an integer greater than or equal to 2;
  • the photoelectric detection module performs photoelectric conversion on the N light beams focused onto the detection target surface of the photoelectric detection module.
  • FIG. 1 is a schematic diagram of the structure of a photoelectric conversion device provided in an embodiment of the present application.
  • the photoelectric conversion device includes a lens module 101 and a photoelectric detection module 102 .
  • the lens module 101 is connected to the photoelectric detection module 102 through an optical path, and is connected to the light outlets of the N optical fibers 103 through an optical path, and is used to focus the N light beams onto the detection target surface of the photoelectric detection module 102.
  • the N light beams are light beams emitted by the N light sources 104, the light inlets of the N optical fibers 103 correspond to the N light sources 104, and N is an integer greater than or equal to 2.
  • the N light beams enter the N optical fibers 103 from the light inlets of the N optical fibers 103 and are transmitted in the N optical fibers 103.
  • the N light beams are transmitted from the light outlets of the N optical fibers 103, according to the propagation rules of light in the air, they propagate along the optical path to the lens module 101.
  • the lens module 101 changes the propagation path of the N light beams so that the N light beams are emitted from the lens module 101 and then focused on the detection target surface of the photoelectric detection module 102 according to the optical path.
  • the photoelectric detection module 102 performs photoelectric conversion on the N light beams focused on the detection target surface of the photoelectric detection module 102, and converts the N light beams from optical signals to electrical signals for subsequent propagation and processing.
  • the photoelectric conversion device includes a lens module 101 and a photoelectric detection module 102, wherein the lens module 101 is connected to the photoelectric detection module 102 through an optical path, and is connected to the light outlets of N optical fibers 103 through an optical path, and is used to focus N light beams onto the detection target surface of the photoelectric detection module 102.
  • the photoelectric detection module 102 is used to perform photoelectric conversion on the N light beams focused onto the detection target surface of the photoelectric detection module 102.
  • the N light beams are light beams emitted by N light sources 104, and the light inlets of the N optical fibers 103 correspond to the N light sources 104, and N is an integer greater than or equal to 2.
  • the lens module 101 By using the lens module 101 to directly focus the N light beams onto the detection target surface of the photoelectric detection module 102, the light loss caused by synthesizing the N light beams into one light beam by using coherent synthesis or incoherent synthesis is reduced, thereby achieving the purpose of reducing the light loss caused by the scheme, thereby improving the transmission efficiency of the optical signal.
  • the photoelectric conversion device may further include an optical fiber fixing module.
  • FIG2 is another structural schematic diagram of the photoelectric conversion device provided in an embodiment of the present application.
  • the photoelectric conversion device includes a lens module 101 , a photoelectric detection module 102 and an optical fiber fixing module 105 .
  • the lens module 101 is connected to the photoelectric detection module 102 through an optical path, and is connected to the light outlets of the N optical fibers 103 through an optical path, and is used to focus the N light beams onto the detection target surface of the photoelectric detection module 102.
  • the N light beams are light beams emitted by the N light sources 104, the light inlets of the N optical fibers 103 correspond to the N light sources 104, and N is an integer greater than or equal to 2.
  • the photoelectric detection module 102 is used to perform photoelectric conversion on the N light beams focused on the detection target surface of the photoelectric detection module 102 .
  • the optical fiber fixing module 105 is connected to the N optical fibers 103 and to the lens module 101 via an optical path, and is used to fix the N optical fibers 103 and output N light beams from the light outlet of the optical fiber fixing module 105 to the lens module 101 .
  • the N light beams enter the N optical fibers 103 from the light inlets of the N optical fibers 103 and are transmitted in the N optical fibers 103.
  • the N light beams are transmitted from the light outlets of the N optical fibers 103, according to the propagation rules of light in the air, they propagate along the optical path to the lens module 101.
  • the lens module 101 changes the propagation path of the N light beams so that the N light beams are emitted from the lens module 101 and then focused along the optical path to the detection target surface of the photoelectric detection module 102.
  • the photoelectric detection module 102 performs photoelectric conversion on the N light beams focused on the detection target surface of the photoelectric detection module 102, and converts the N light beams from optical signals to electrical signals for subsequent propagation and processing.
  • the optical fiber fixing module 105 fixes the N optical fibers 103 and maintains the relative distance between any two of the N optical fibers.
  • the optical fiber fixing module 105 can fix the N optical fibers 103, thereby providing a stable shape for the light spots on the detection target surface of the photoelectric detection module 102 where the N light beams are focused, so that the working area of the detection target surface of the photoelectric detection module 102 tends to be stable, avoiding the situation where the photoelectric detection module 102 cannot receive all the light signals of the N light beams due to the difficulty in controlling the positions of the N light beams, thereby improving the efficiency of photoelectric conversion.
  • the lens module 101 and the optical fiber fixing module 105 have various forms. Some possible shapes and arrangements of the lens module 101 and the optical fiber fixing module 105 are introduced below:
  • FIG. 3 a is a schematic structural diagram of a lens module provided in an embodiment of the present application.
  • the lens module 101 in the photoelectric conversion device can have various forms.
  • it can be the aspheric lens 1011 shown in Figure 3a, the microlens array 1012 shown in Figure 3a, the combination 1 of the aspheric lens 1011 and the microlens array 1012 shown in Figure 3a, the combination 2 of the aspheric lens 1011 and the reflector 1013 shown in Figure 3a, the combination 3 of the microlens array 1012 and the reflector 1013 shown in Figure 3a, and it can also be the combination 4 of the microlens array 1011, the aspheric lens 1012 and the reflector 1013 shown in Figure 3a.
  • the description of the lens module 101 here is only an example. In actual applications, when the lens module 101 is combined, the form and order of the combination are not limited.
  • the lens module 101 can have a variety of lens combinations, which is not limited here.
  • FIG. 3 b is a schematic diagram of the structure of an optical fiber fixing module provided in an embodiment of the present application.
  • the optical fiber fixing module 105 in the photoelectric conversion device can also have various forms.
  • the optical fiber fixing module 105 can be the optical fiber array 1051 or the multi-core optical fiber 1052 shown in Figure 3b, wherein the optical fiber array 1051 can also be a linear optical fiber array 10511 and a two-dimensional optical fiber array 10512 according to its distribution form.
  • optical fiber fixing module 105 it is understandable that the description of the optical fiber fixing module 105 here is only an example. In actual applications, the optical fiber fixing module 105 may also have other forms not shown in Figure 3b, which is not limited here.
  • the photoelectric conversion device provided in the embodiment of the present application will be introduced below in combination with specific application scenarios, respectively for the cases where the N light beams are coherent light and incoherent light.
  • the N light beams are incoherent lights
  • adjacent light beams influence each other near the detection target surface of the photoelectric conversion module 102, resulting in incoherent light coupling. Therefore, when the N light beams are incoherent lights, the distance between the N light beams can be limited to fully utilize the situation that incoherent light coupling will occur due to the close distance between the incoherent light beams, so that the energy of the N light beams on the detection target surface of the photoelectric conversion module 102 is more concentrated and average, achieving the effect of a uniform light field.
  • the optical fiber fixing module 105 is an optical fiber array 1051, and the optical fiber fixing module 105 is a multi-core optical fiber 1052, which will be introduced separately in conjunction with the attached drawings.
  • FIG. 4 is another schematic diagram of the structure of the photoelectric conversion device provided in an embodiment of the present application.
  • the photoelectric conversion device includes an aspherical lens 1011 , a photoelectric detection module 102 and an optical fiber array 1051 .
  • N light sources 104 are connected to the optical fiber array 1051 via N optical fibers 103 to emit N light beams, where N is an integer greater than or equal to 2.
  • the optical fiber array 1051 is connected to the aspheric lens 1011 through an optical path, and is used to fix the N optical fibers 103 and output the N light beams from the light outlet of the optical fiber array 1051 .
  • the aspheric lens 1011 is connected to the photoelectric detection module 102 through an optical path, and utilizes the characteristic that the aspheric lens can change the transmission path of the light to focus N light beams onto the detection target surface of the photoelectric detection module 102 .
  • the photoelectric detection module 102 is used to perform photoelectric conversion on the N light beams focused on the detection target surface of the photoelectric detection module 102 .
  • N light beams For ease of understanding, the transmission path of N light beams is introduced below: in the photoelectric conversion device shown in FIG. 4 , after N light sources 104 emit N light beams, the N light beams enter the N optical fibers 103 from the light inlets of the N optical fibers 103 and are transmitted in the N optical fibers 103.
  • the N light beams are transmitted from the light outlet of the optical fiber array 1051, according to the propagation rules of light in the air, they propagate along the light path to the aspheric lens 1011.
  • the aspheric lens 1011 changes the propagation path of the N light beams so that the N light beams are focused along the light path to the detection target surface of the photoelectric detection module 102 after being emitted from the aspheric lens 1011.
  • the photoelectric detection module 102 performs photoelectric conversion on the N light beams focused on the detection target surface of the photoelectric detection module 102, and converts the N light beams from optical signals to electrical signals for subsequent propagation and processing.
  • the optical fiber array 1051 fixes the N optical fibers 103 and maintains the relative distance between any two of the N optical fibers.
  • the optical fiber array 1051 here can be the linear optical fiber array 10511 described in the aforementioned FIG. 3b, or can be the two-dimensional optical fiber array 10512 described in the aforementioned FIG. 3b, and no limitation is made here.
  • the optical fiber array 1051 is the two-dimensional optical fiber array 10512 is introduced.
  • the aspheric lens 1011 here can also be any possible form of the lens module 101 described in the aforementioned Figure 3a, and there is no limitation here. In actual applications, it should be set in combination with specific application scenarios. The embodiments of the present application only illustrate and introduce the aspheric lens 1011 as an example.
  • the distance between the light outlet of the optical fiber array 1051 and the aspheric lens 1011 is L1. Since the transmission of N light beams in space follows the propagation law of Gaussian beams, the spot diameters DN of the N light beams on the aspheric lens 1011 can be obtained in combination with L1.
  • L1 and DN follows the propagation law of Gaussian beams.
  • L1 is the distance between the light outlet of the N optical fibers and the lens module
  • DN is the spot diameter of the N light beams on the lens module.
  • the relationship between L1 and DN follows the propagation law of Gaussian beams.
  • the diameter of the aspheric lens 1011 is D.
  • D is greater than D N .
  • D is greater than D N.
  • Making D greater than D N avoids unnecessary consumption of the light of the N light beams during transmission, thereby improving the efficiency and quality of optical signal transmission.
  • D and DN should be set in combination with specific application scenarios and specific usage requirements, and no limitation is made here.
  • the distance between the aspheric lens 1011 and the detection target surface of the photoelectric detection module 102 is L2, and the focal length of the aspheric lens 1011 is F.
  • L2 and F should satisfy that L2 is less than or equal to F.
  • the distance between the lens module and the detection target surface of the photoelectric detection module is L2
  • the focal length of the lens module is F
  • L2 is less than or equal to F.
  • L2 is limited to be less than or equal to F, which further provides a direction for the design of the photoelectric conversion device.
  • L2 and F are only an example. In actual applications, L2 and F should be set in combination with specific application scenarios and specific usage requirements, and no limitation is made here.
  • the specific arrangement of the N optical fibers can refer to the cross-sectional view of the optical fiber array 1051 in Figure 4.
  • the optical fiber array 1051 is a linear optical fiber array 10511
  • the distance between adjacent optical fibers is 250 ⁇ m.
  • the optical fiber array 1051 is a two-dimensional optical fiber array
  • the distance between adjacent optical fibers is 250 ⁇ m.
  • FIG 5 is a schematic diagram of the distribution of the light field of N light beams provided in an embodiment of the present application.
  • the light field of the light beam on the detection target surface of the photoelectric detection module 102 is shown in FIG5 as the light field distribution of a single light beam, and the light field distribution of the light beam follows the distribution of a Gaussian beam, and in the light field distribution of the light beam, the peak power density of the light field is 2.07e 3 W/cm 2 , wherein the light beam is a light beam obtained by incoherently combining N light beams through a wavelength division multiplexing device.
  • Modeling and simulation of the device shown in FIG4 are performed to find that in the device shown in FIG4, the light field of the N light beams on the detection target surface of the photoelectric detection module 102 is shown in FIG5 as the light field distribution of 19 light beams, and in the light field distribution of 19 light beams, the peak power density of the light field is 1.2e 3 W/cm 2 .
  • the spot diameter of the light beam is ⁇ 280 ⁇ m; and when the 19 light beams are focused on the detection target surface of the photoelectric detection module 102, the spot diameter of the 19 light beams is ⁇ 210 ⁇ m.
  • the detection of a combined light beam is changed to the detection of N light beams, and secondly, by adjusting the distance between the aspheric lens 1011 and the light matrix 1051 and the distance between the aspheric lens 1011 and the photoelectric detection module 102, the N light beams are focused on different spatial positions of the detection target surface of the photoelectric detection module 102, thereby reducing the peak power density of the light field by 42%, effectively improving the upper limit of the receiving power of the detection target surface of the photoelectric detection module 102, and improving the damage threshold; and reducing the spot diameter of the light beam by 25%, so that under the same area, in the photoelectric conversion device, the diameter of the detection target surface of the photoelectric detection module 102 can be further reduced, which provides the possibility for miniaturization and high frequency of the solution.
  • optical fiber fixing module 105 is a multi-core optical fiber 1052
  • the optical fiber fixing module 105 is a multi-core optical fiber 1052
  • FIG. 6 is another schematic diagram of the structure of the photoelectric conversion device provided in an embodiment of the present application.
  • the photoelectric conversion device includes an aspherical lens 1011 , a microlens array 1012 , a photoelectric detection module 102 and a multi-core optical fiber 1052 .
  • N light sources 104 are connected to the multi-core optical fiber 1052 via N optical fibers 103 to emit N light beams, where N is an integer greater than or equal to 2.
  • the multi-core optical fiber 1052 is connected to the microlens array 1012 through an optical path, and is used to fix the N optical fibers 103 and output the N light beams from the light outlet of the multi-core optical fiber 1052 .
  • the microlens array 1012 is connected to the aspheric lens 1011 through an optical path, and is used to change the transmission paths of the N light beams.
  • the aspheric lens 1011 is connected to the photoelectric detection module 102 through an optical path.
  • the aspheric lens can change the transmission path of the light, thereby changing the transmission paths of the N light beams and focusing the N light beams onto the detection target surface of the photoelectric detection module 102.
  • the photoelectric detection module 102 is used to perform photoelectric conversion on the N light beams focused on the detection target surface of the photoelectric detection module 102 .
  • the transmission path of N light beams is introduced below: in the photoelectric conversion device shown in FIG6 , after N light sources 104 emit N light beams, the N light beams enter the N optical fibers 103 from the light inlets of the N optical fibers 103 and are transmitted in the N optical fibers 103 .
  • the N light beams are transmitted from the light outlet of the multi-core optical fiber 1052 , according to the propagation rules of light in the air, they propagate along the light path to the microlens array 1012 .
  • the N light beams change the transmission path through the microlens array 1012 , they propagate along the light path to the aspheric lens 1011 .
  • the aspheric lens 1011 changes the propagation path of the N light beams so that the N light beams are emitted from the aspheric lens 1011 and then focus along the light path to the detection target surface of the photoelectric detection module 102 .
  • the photoelectric detection module 102 performs photoelectric conversion on the N light beams focused on the detection target surface of the photoelectric detection module 102 , and converts the N light beams from optical signals to electrical signals for subsequent propagation and processing.
  • the multi-core optical fiber 1052 fixes the N optical fibers 103 and maintains the relative distance between any two of the N optical fibers.
  • the multi-core optical fiber 1052 includes 19 optical fibers, and the arrangement of the 19 optical fibers is shown in FIG. 7 , which is a cross-sectional view of the multi-core optical fiber provided in an embodiment of the present application.
  • optical fibers are arranged in a three-layer ring.
  • the innermost layer of the multi-core optical fiber 1052 includes 1 optical fiber
  • the middle layer of the multi-core optical fiber 1052 includes 6 optical fibers
  • the outermost layer of the multi-core optical fiber includes 12 optical fibers
  • the distance between the innermost layer of the multi-core optical fiber 1052 and the middle layer of the multi-core optical fiber 1052 is 42 ⁇ m
  • the distance between the outermost layer of the multi-core optical fiber 1052 and the middle layer of the multi-core optical fiber 1052 is 48 ⁇ m.
  • the combination of the aspheric lens 1011 and the microlens array 1012 can also be any possible form of the lens module 101 described in the aforementioned Figure 3a, which is not limited here. In actual applications, it should be set in combination with specific application scenarios.
  • the embodiment of the present application only illustrates and introduces the combination of the aspheric lens 1011 and the microlens array 1012 as an example.
  • the distance between the light outlet of the multi-core optical fiber 1052 and the microlens array 1012 is L1. Since the transmission of N light beams in space follows the propagation law of Gaussian beams, the spot diameters DN of the N light beams on the microlens array 1012 can be obtained in combination with L1.
  • the microlens array 1012 includes N lenses, wherein the N lenses correspond one-to-one to the N optical fibers in the multi-core optical fiber 1052, and the diameter of the microlens array 1012 composed of the N optical fibers is D.
  • D is greater than D N .
  • D and DN should be set in combination with specific application scenarios and specific usage requirements, and no limitation is made here.
  • the distance between the aspheric lens 1011 and the detection target surface of the photoelectric detection module 102 is L2, and the focal length of the aspheric lens 1011 is F.
  • L2 and F should satisfy that L2 is less than or equal to F.
  • L2 and F are only an example. In actual applications, L2 and F should be set in combination with specific application scenarios and specific usage requirements, and no limitation is made here.
  • FIG 8 is a schematic diagram of another distribution of the light field of N light beams provided in an embodiment of the present application.
  • the light field of the light beam on the detection target surface of the photoelectric detection module 102 is shown in FIG8 as the light field distribution of a single light beam, and the light field distribution of the light beam follows the distribution of a Gaussian beam, and in the light field distribution of the light beam, the peak power density of the light field is 1.14e 4 W/cm 2 , wherein the light beam is a light beam obtained by incoherently combining N light beams through a wavelength division multiplexing device.
  • Modeling and simulation of the device shown in FIG6 are performed to find that in the device shown in FIG6, the light field of N light beams on the detection target surface of the photoelectric detection module 102 is shown in FIG8 as the light field distribution of 19 light beams, and in the light field distribution of 19 light beams, the peak power density of the light field is 8.1e 3 W/cm 2 .
  • the spot diameter of the light beam is ⁇ 110 ⁇ m; and when the 19 light beams are focused on the detection target surface of the photoelectric detection module 102, the total spot diameter of the 19 light beams is ⁇ 90 ⁇ m.
  • the detection of a combined light beam is changed to the parallel detection of N light beams, and secondly, by adjusting the distance between the multi-core optical fiber 1052 and the microlens array 1012 and the distance between the aspheric lens 1011 and the photoelectric detection module 102, the peak power density of the light field is reduced by 29%, which effectively improves the threshold of the detection target surface of the photoelectric detection module 102 for receiving energy; and the spot diameter of the light beam is reduced by 18%, so that under the same area, in the photoelectric conversion device, the diameter of the detection target surface of the photoelectric detection module 102 can be further reduced, which provides the possibility for miniaturization and high frequency of the solution.
  • N is 19. If the N light beams are coherent light, adjacent light beams will influence each other near the detection target surface of the photoelectric conversion module 102, resulting in coherent synthesis fluctuations. Therefore, when the N light beams are coherent light, a certain distance should be maintained between adjacent light beams to avoid coherent synthesis fluctuations of adjacent light beams.
  • FIG. 9 is another schematic diagram of the structure of the photoelectric conversion device provided in an embodiment of the present application.
  • the photoelectric conversion device includes a microlens array 1012 , an aspherical lens 1011 , a reflector 1013 , a photoelectric detection module 102 and a multi-core optical fiber 1052 .
  • N light sources 104 are connected to the multi-core optical fiber 1052 via N optical fibers 103 to emit N light beams, where N is an integer greater than or equal to 2.
  • the multi-core optical fiber 1052 is connected to the microlens array 1012 through an optical path, and is used to fix the N optical fibers 103 and output the N light beams from the light outlet of the multi-core optical fiber 1052 .
  • the microlens array 1012 is connected to the aspheric lens 1011 through an optical path, and is used to change the transmission paths of the N light beams.
  • the aspheric lens 1011 is connected to the photoelectric detection module 102 through an optical path.
  • the aspheric lens can change the transmission path of the light, thereby changing the transmission paths of the N light beams and focusing the N light beams onto the detection target surface of the photoelectric detection module 102.
  • a reflector 1013 may be provided between the aspheric lens 1011 and the photoelectric detection module 102 .
  • the aspheric lens 1011 and the reflector 1013 are connected via an optical path, and the reflector 1013 and the photoelectric detection module 102 are connected via an optical path, so as to change the directions of the N light beams emitted by the aspheric lens 1011 .
  • the photoelectric detection module 102 is used to perform photoelectric conversion on the N light beams focused on the detection target surface of the photoelectric detection module 102 .
  • the transmission path of the N light beams is introduced below: in the photoelectric conversion device shown in Figure 6, after the N light sources 104 emit N light beams, the N light beams enter the N optical fibers 103 from the light inlets of the N optical fibers 103 and are transmitted in the N optical fibers 103.
  • the N light beams are transmitted from the light outlet of the multi-core optical fiber 1052, according to the propagation rules of light in the air, they propagate along the light path to the microlens array 1012. After the transmission paths of the N light beams are changed by the microlens array 1012, they are transmitted along the light path to the aspheric lens 1011.
  • the reflector 1013 changes the propagation paths of the N light beams so that the N light beams are emitted from the reflector 1013 and then focused along the light path to the detection target surface of the photoelectric detection module 102.
  • the photoelectric detection module 102 performs photoelectric conversion on the N light beams focused on the detection target surface of the photoelectric detection module 102, and converts the N light beams from optical signals to electrical signals for subsequent propagation and processing.
  • the multi-core optical fiber 1052 fixes the N optical fibers 103 and maintains the relative distance between any two of the N optical fibers.
  • the multi-core optical fiber 1052 includes 19 optical fibers, and the arrangement of the 19 optical fibers is similar to that in the aforementioned FIG. 7 , which will not be described again here.
  • the angle between the axis of the reflector 1013 and the axis of the aspheric lens 1011 is 45°.
  • the description of the angle between the axis of the reflector 1013 and the axis of the aspheric lens 1011 here is only an example. In actual applications, it should be set in combination with specific usage scenarios and is not limited here.
  • the combination of the aspheric lens 1011 and the reflector 1013 here can also be any possible form of the lens module 101 described in the aforementioned Figure 3a, which is not limited here. In actual applications, it should be set in combination with specific application scenarios.
  • the embodiment of the present application only illustrates and introduces the combination of the aspheric lens 1011 and the reflector 1013 as an example.
  • the distance between the light outlet of the multi-core optical fiber 1052 and the aspheric lens 1011 is L1. Since the transmission of N light beams in space follows the propagation law of Gaussian beams, the spot diameters DN of the N light beams on the aspheric lens 1011 can be obtained in combination with L1.
  • the diameter of the aspheric lens 1011 is D.
  • D is greater than D N .
  • D and DN should be set in combination with specific application scenarios and specific usage requirements, and no limitation is made here.
  • the distance between the aspheric lens 1011 and the detection target surface of the photoelectric detection module 102 is L2, and the focal length of the aspheric lens 1011 is F.
  • L2 and F should satisfy that L2 is less than or equal to F.
  • the photoelectric conversion device includes a reflector 1013, and the reflector 1013 is arranged between the aspheric lens 1011 and the photoelectric detection module 102, the distance between the aspheric lens 1011 and the reflector 1013 is l1, and the distance between the reflector and the photoelectric detection module is l2.
  • L2 and F are only an example. In actual applications, L2 and F should be set in combination with specific application scenarios and specific usage requirements, and no limitation is made here.
  • FIG10 is a schematic diagram of another distribution of the light field of N light beams provided in an embodiment of the present application.
  • the light field of the light beam on the detection target surface of the photoelectric detection module 102 is shown in the light field distribution of a single light beam in FIG10, and the peak power density of the light field is 1.34e 5 W/cm 2 , wherein the light beam is a light beam obtained by coherent beam combination of N light beams.
  • Modeling and simulation of the device shown in FIG9 are performed to find that in the device shown in FIG9, the light field of N light beams on the detection target surface of the photoelectric detection module 102 is shown in the light field distribution of 19 light beams in FIG10, and in the light field distribution of 19 light beams, the peak power density of the light field is 1.28e 5 W/cm 2 .
  • the detection of a combined light beam is changed to the parallel detection of N light beams, and secondly, by adjusting the distance between the multi-core optical fiber 1052 and the aspheric lens 1011, the distance between the aspheric lens 1011 and the reflector 1013, and the distance between the reflector 1013 and the photoelectric detection module 102, the peak power density of the light field is reduced by 4%, which effectively improves the threshold value of the detection target surface of the photoelectric detection module 102 for receiving energy, so that under the same area, in the photoelectric conversion device, the diameter of the detection target surface of the photoelectric detection module 102 can be further reduced, which provides the possibility for miniaturization and high frequency of the solution.
  • Figure 11 is another structural schematic diagram of the photoelectric conversion device provided in an embodiment of the present application.
  • the photoelectric conversion device comprises: a control module, a first photoelectric conversion device and a second photoelectric conversion device.
  • the first photoelectric conversion device is similar to that in the aforementioned FIG. 9 and will not be introduced here again. Please refer to the description of the photoelectric conversion device in the aforementioned FIG. 9 .
  • the second photoelectric conversion device is similar to that in the aforementioned FIG. 4 or FIG. 6 , and will not be described in detail here.
  • FIG. 4 is used as an example for demonstration here.
  • the control module is connected with the N light sources, the first photoelectric detection module and the second photoelectric detection module, wherein the first photoelectric detection module is included in the first photoelectric conversion device, and the second photoelectric detection module is included in the second photoelectric conversion device.
  • FIG. 12 is a schematic diagram of a photoelectric conversion method provided in an embodiment of the present application.
  • a control module obtains wavelengths of N light beams
  • the N light beams emitted by the N light sources may be coherent light or incoherent light
  • the N light beams are coherent light
  • the control module as the control center of the photoelectric conversion device comes in handy.
  • control module obtains the wavelengths of N light beams.
  • control module when the control module is connected to N light sources, the control module collects wavelengths of N light beams from the N light sources.
  • control module when the control module is connected to the first photodetection module, the control module collects the wavelengths of N light beams from the first photodetection module.
  • control module in the photoelectric conversion device, in an initial state, N light sources are connected to the first photodetection module, and the control module collects the wavelengths of N light beams from the first photodetection module.
  • control module when the control module is connected to the second photoelectric detection module, the control module collects the wavelengths of N light beams from the second photoelectric detection module.
  • control module in the photoelectric conversion device, in the initial state, N light sources are connected to the second photoelectric detection module, and the control module collects the wavelengths of N light beams from the second photoelectric detection module.
  • control module when the control module is connected to the first photoelectric detection module and the second photoelectric detection module at the same time, the control module collects wavelengths of N light beams from the first photoelectric detection module or the second photoelectric detection module according to the current light path.
  • control module to obtain N light beam wavelengths is only an example, and in actual application, it should be set in combination with specific application scenarios, and is not limited here.
  • the control module determines whether the N light beams are coherent light.
  • control module After acquiring the wavelengths of the N light beams, the control module determines whether the N light beams are coherent lights.
  • step 1203 If the N light beams are coherent light, execute step 1203 .
  • step 1204 If the N light beams are incoherent light, execute step 1204 .
  • the control module sends a first signal to a first photoelectric conversion device
  • the control module sends a first signal to the first photoelectric conversion device, and the first signal indicates that the first photoelectric conversion device is connected to the light outlets of the N optical fibers through an optical path, thereby achieving the optical path maintaining the first photoelectric conversion device to process the N light beams emitted by the N light sources, or the optical path is switched to the first photoelectric conversion device to process the N light beams emitted by the N light sources.
  • the control module sends a second signal to a second photoelectric conversion device.
  • the control module sends a second signal to the second photoelectric conversion device, and the second signal indicates that the second photoelectric conversion device is connected to the light outlets of the N optical fibers through an optical path, thereby achieving the optical path maintaining the second photoelectric conversion device to process the N light beams emitted by the N light sources, or the optical path is switched to the second photoelectric conversion device to process the N light beams emitted by the N light sources.
  • switching between the first photoelectric conversion device and the second photoelectric conversion device is achieved through a control module, without the need for human attention and judgment and execution of corresponding countermeasures based on the wavelengths of N light beams, thereby saving labor costs and improving the processing efficiency of the photoelectric conversion device.
  • FIG. 13 is another structural schematic diagram of the photoelectric conversion device provided in an embodiment of the present application.
  • the photoelectric conversion device comprises: a control module and a photoelectric conversion device.
  • the photoelectric conversion device is similar to the aforementioned Figure 4, Figure 6 or Figure 9, and will not be introduced here. Please refer to the description of the photoelectric conversion device in the aforementioned Figure 4, Figure 6 or Figure 9.
  • the control module is connected with the N light sources and the photoelectric detection module, wherein the photoelectric detection module is included in the device of photoelectric conversion.
  • FIG. 14 is another schematic diagram of a method for controlling photoelectric conversion provided in an embodiment of the present application.
  • a control module obtains wavelengths of N light beams
  • the N light beams emitted by the N light sources may be coherent light or incoherent light
  • the N light beams are coherent light
  • the control module as the control center of the photoelectric conversion device comes in handy.
  • control module obtains the wavelengths of N light beams.
  • control module when the control module is connected to N light sources, the control module collects wavelengths of N light beams from the N light sources.
  • control module when the control module is connected to the photoelectric detection module, the control module collects wavelengths of N light beams from the photoelectric detection module.
  • control module to obtain N light beam wavelengths is only an example, and in actual application, it should be set in combination with specific application scenarios, and is not limited here.
  • the control module determines whether the N light beams are coherent light.
  • control module After acquiring the wavelengths of the N light beams, the control module determines whether the N light beams are coherent lights.
  • step 1203 If the N light beams are coherent light, execute step 1203 .
  • step 1204 If the N light beams are incoherent light, execute step 1204 .
  • the control module sends a first signal to the photoelectric conversion device
  • the control module sends a first signal indicating that L2 is less than F in the photoelectric conversion device, where L2 is the distance between the lens module and the detection target surface of the photoelectric detection module, and F is the focal length of the lens module.
  • the control module sends a second signal to the photoelectric conversion device.
  • control module sends a second signal to the photoelectric conversion device, and the second signal indicates that L2 is equal to F.
  • the distance between the lens module and the detection target surface of the photoelectric detection module in the device for photoelectric conversion is adjusted by the control module.
  • the photoelectric conversion device is adjusted in time according to whether the N light beams are coherent light beams, and no human attention is required to judge and execute corresponding countermeasures according to the wavelengths of the N light beams, which saves human cost and improves the processing efficiency of the photoelectric conversion device.
  • FIG. 15 is a schematic diagram of the structure of a control module provided in an embodiment of the present application.
  • An acquisition submodule 1501 is used to acquire wavelengths of N light beams, where the N light beams are light beams emitted by N light sources;
  • a judging submodule 1502 used to judge whether the N light beams are coherent lights
  • the sending submodule 1503 is used to send a first signal to the first photoelectric conversion device, where the first signal indicates that the first photoelectric conversion device is connected to the light outlets of the N optical fibers through an optical path;
  • the sending submodule 1503 is further used to send a second signal to the second photoelectric conversion device, where the second signal indicates that the second photoelectric conversion device is connected to the light outlets of the N optical fibers through an optical path.
  • FIG. 15 is only a possible implementation of the embodiment of the present application.
  • the control module may also include more or fewer components, which is not limited here.
  • the contents not shown or described in the embodiment of the present application please refer to the description of the control module in the above-mentioned FIG. 11 and FIG. 12, which will not be repeated here.
  • Figure 16 is a structural diagram of a network device provided in an embodiment of the present application.
  • the network device 1600 includes: a processor 1610 and a communication interface 1620.
  • the processor 1610 and the communication interface 1620 can be connected to each other through an internal bus 1640, or can communicate through other means such as wireless transmission.
  • the embodiment of the present application takes the connection through the bus 1640 as an example.
  • the bus 1640 can be a Peripheral Component Interconnect (PCI) bus or an Extended Industry Standard Architecture (EISA) bus.
  • PCI Peripheral Component Interconnect
  • EISA Extended Industry Standard Architecture
  • the bus 1640 can be divided into an address bus, a data bus, a control bus, etc. For ease of representation, only one thick line is used in Figure 16, but it does not mean that there is only one bus or one type of bus.
  • the processor 1610 may be composed of at least one general-purpose processor, such as a central processing unit (CPU), or a combination of a CPU and a hardware chip.
  • the hardware chip may be an application-specific integrated circuit (ASIC), a programmable logic device (PLD), or a combination thereof.
  • the PLD may be a complex programmable logic device (CPLD), a field-programmable gate array (FPGA), a generic array logic (GAL), or any combination thereof.
  • the processor 1610 executes various types of instructions, such as instructions burned into the processor, or software or firmware programs stored in the memory 1630, which enables the network device 1600 to provide a variety of services.
  • the memory 1630 is used to store program codes, and the processor 1610 controls the execution to execute the processing steps in the photoelectric conversion method in the above embodiment.
  • the program code may include one or more software modules, which may be the software modules provided in FIG. 15, such as an acquisition submodule, a judgment submodule or a sending submodule, wherein the acquisition submodule is used to acquire the wavelengths of N light beams, where the N light beams are light beams emitted by N light sources; the judgment submodule is used to determine whether the N light beams are coherent light; if the N light beams are coherent light, the sending submodule is used to send a first signal to the first photoelectric conversion device, the first signal indicating that the first photoelectric conversion device is connected to the light outlets of the N optical fibers through an optical path; if the N light beams are incoherent light, the sending submodule is used to send a second signal to the second photoelectric conversion device, the second signal indicating that the second photoelectric conversion device is connected to the light outlets of the
  • the present embodiment may be implemented by a general physical server, such as an ARM server or an X86 server, or may be implemented by a virtual machine based on a general physical server combined with network function virtualization (NFV) technology.
  • NFV network function virtualization
  • a virtual machine refers to a complete computer system with complete hardware system functions simulated by software and running in a completely isolated environment, and this application does not make any specific limitation.
  • the network device 1600 may further include a memory 1630, which may include a volatile memory, such as a random access memory (RAM); the memory 1630 may also include a non-volatile memory, such as a read-only memory (ROM), a flash memory, a hard disk (HDD) or a solid-state drive (SSD); the memory 1630 may also include a combination of the above types.
  • the memory 1630 may store program codes to execute the actions executed by the control module in FIG. 11 or FIG. 12, which will not be described in detail here.
  • the communication interface 1620 can be a wired interface (such as an Ethernet interface), an internal interface (such as a high-speed serial computer expansion bus (Peripheral Component Interconnect express, PCIe) bus interface), a wired interface (such as an Ethernet interface) or a wireless interface (such as a cellular network interface or a wireless local area network interface) for communicating with other devices or modules.
  • a wired interface such as an Ethernet interface
  • an internal interface such as a high-speed serial computer expansion bus (Peripheral Component Interconnect express, PCIe) bus interface
  • PCIe Peripheral Component Interconnect express
  • a wired interface such as an Ethernet interface
  • a wireless interface such as a cellular network interface or a wireless local area network interface
  • FIG. 16 is only a possible implementation of the embodiment of the present application.
  • the network device may also include more or fewer components, which is not limited here.
  • the contents not shown or described in the embodiment of the present application please refer to the description of the control module in the aforementioned FIG. 11 or FIG. 12, which will not be repeated here.
  • FIG. 17 is another schematic diagram of the structure of the control module provided in an embodiment of the present application.
  • the control module includes:
  • An acquisition submodule 1701 is used to acquire wavelengths of N light beams emitted by N light sources
  • a judging submodule 1702 used to judge whether the N light beams are coherent lights
  • the sending submodule 1703 is used to send a first signal, where the first signal indicates that L2 is less than F, where L2 is the distance between the lens module and the detection target surface of the photoelectric detection module, and F is the focal length of the lens module;
  • the sending submodule 1703 is used to send a second signal, where the second signal indicates that L2 is equal to F.
  • FIG. 17 is only a possible implementation of the embodiment of the present application.
  • the control module may also include more or fewer components, which is not limited here.
  • the contents not shown or described in the embodiment of the present application please refer to the description of the control module in the aforementioned FIG. 13 and FIG. 14, which will not be repeated here.
  • Figure 18 is another structural diagram of the network device provided in an embodiment of the present application.
  • the network device 1800 includes: a processor 1810 and a communication interface 1820.
  • the processor 1810 and the communication interface 1820 can be connected to each other through an internal bus 1840, or can communicate through other means such as wireless transmission.
  • the embodiment of the present application takes the connection through the bus 1840 as an example.
  • the bus 1840 can be a Peripheral Component Interconnect (PCI) bus or an Extended Industry Standard Architecture (EISA) bus.
  • PCI Peripheral Component Interconnect
  • EISA Extended Industry Standard Architecture
  • the bus 1840 can be divided into an address bus, a data bus, a control bus, etc. For ease of representation, only one thick line is used in Figure 18, but it does not mean that there is only one bus or one type of bus.
  • the processor 1810 may be composed of at least one general-purpose processor, such as a central processing unit (CPU), or a combination of a CPU and a hardware chip.
  • the hardware chip may be an application-specific integrated circuit (ASIC), a programmable logic device (PLD), or a combination thereof.
  • the PLD may be a complex programmable logic device (CPLD), a field-programmable gate array (FPGA), a generic array logic (GAL), or any combination thereof.
  • the processor 1810 executes various types of instructions, such as instructions burned into the processor, or software or firmware programs stored in the memory 1830, which enables the network device 1800 to provide a variety of services.
  • the memory 1830 is used to store program codes, and is controlled by the processor 1810 to execute the processing steps in the photoelectric conversion method in the above embodiment.
  • the program code may include one or more software modules, which may be the software modules provided in FIG. 17, such as an acquisition submodule, a judgment submodule or a sending submodule, wherein the acquisition submodule is used to acquire the wavelengths of the N light beams emitted by the N light sources; the judgment submodule is used to determine whether the N light beams are coherent light; if the N light beams are coherent light, the sending submodule is used to send a first signal, the first signal indicating that L2 is less than F, L2 is the distance between the lens module and the detection target surface of the photoelectric detection module, and F is the focal length of the lens module; if the N light beams are incoherent light, the sending submodule is used to send a second signal, and the second signal indicates that L2 is equal to F.
  • the acquisition submodule is used to acquire the wavelengths
  • this embodiment can be implemented by a general physical server, for example, an ARM server or an X86 server, or it can be implemented by a virtual machine based on a general physical server combined with NFV technology.
  • a virtual machine refers to a complete computer system with complete hardware system functions simulated by software and running in a completely isolated environment. This application does not make any specific limitations.
  • the network device 1800 may further include a memory 1830, which may include a volatile memory, such as a random access memory (RAM); the memory 1830 may also include a non-volatile memory, such as a read-only memory (ROM), a flash memory, a hard disk (HDD) or a solid-state drive (SSD); the memory 1830 may also include a combination of the above types.
  • the memory 1830 may store program codes to execute the actions executed by the control module in FIG. 13 or FIG. 14, which will not be described in detail here.
  • the communication interface 1820 can be a wired interface (such as an Ethernet interface), an internal interface (such as a high-speed serial computer expansion bus (Peripheral Component Interconnect express, PCIe) bus interface), a wired interface (such as an Ethernet interface) or a wireless interface (such as a cellular network interface or a wireless local area network interface) for communicating with other devices or modules.
  • a wired interface such as an Ethernet interface
  • an internal interface such as a high-speed serial computer expansion bus (Peripheral Component Interconnect express, PCIe) bus interface
  • PCIe Peripheral Component Interconnect express
  • a wired interface such as an Ethernet interface
  • a wireless interface such as a cellular network interface or a wireless local area network interface
  • FIG. 18 is only a possible implementation of the embodiment of the present application.
  • the network device may also include more or fewer components, which is not limited here.
  • the contents not shown or described in the embodiment of the present application please refer to the description of the control module in the aforementioned FIG. 13 or FIG. 14, which will not be repeated here.
  • An embodiment of the present application also provides a computer-readable storage medium, including computer-readable instructions.
  • the computer-readable instructions When the computer-readable instructions are executed on a computer, the computer executes any one of the implementation methods shown in the aforementioned method embodiments.
  • the embodiments of the present application also provide a computer program product, which includes a computer program or instructions.
  • a computer program product which includes a computer program or instructions.
  • the computer program or instructions When the computer program or instructions are executed on a computer, the computer executes any one of the implementation methods shown in the aforementioned method embodiments.
  • the present application also provides a chip or chip system, which may include a processor.
  • the chip may also include a memory (or storage module) and/or a transceiver (or communication module), or the chip is coupled to a memory (or storage module) and/or a transceiver (or communication module), wherein the transceiver (or communication module) can be used to support the chip for wired and/or wireless communication, and the memory (or storage module) can be used to store a program or a set of instructions, and the processor calls the program or the set of instructions to implement the above method embodiment, and the operation performed by the terminal or network device in any possible implementation of the method embodiment.
  • the chip system may include the above chip, and may also include the above chip and other discrete devices, such as a memory (or storage module) and/or a transceiver (or communication module).
  • the disclosed systems, devices and methods can be implemented in other ways.
  • the device embodiments described above are only schematic.
  • the division of the units is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed.
  • Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be an indirect coupling or communication connection through some interfaces, devices or units, which can be electrical, mechanical or other forms.
  • the units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • the above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional units.
  • the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium.
  • the technical solution of the present application is essentially or the part that contributes to the prior art or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including a number of instructions to enable a computer device (which can be a personal computer, server, or network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present application.
  • the aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM, read-only memory), random access memory (RAM, random access memory), disk or optical disk and other media that can store program code.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Couplings Of Light Guides (AREA)

Abstract

L'invention concerne un appareil de conversion photoélectrique, un procédé et un dispositif de réseau, qui sont utilisés pour éviter une perte de lumière résultant de la combinaison d'une pluralité de faisceaux lumineux en un seul faisceau lumineux, et qui réalisent une transmission de signal efficace à l'intérieur d'un trajet optique. L'appareil des modes de réalisation de la présente demande comprend : un module de lentille et un module de détection photoélectrique, le module de lentille étant connecté au module de détection photoélectrique par l'intermédiaire d'un trajet optique, et étant connecté par l'intermédiaire d'un trajet optique à des sorties de lumière de N fibres optiques. Le module de détection photoélectrique est utilisé pour effectuer une conversion photoélectrique sur N faisceaux lumineux focalisés sur une surface cible de détection du module de détection photoélectrique. Les N faisceaux lumineux sont des faisceaux lumineux émis par N sources de lumière, des entrées de lumière des N fibres optiques correspondent aux N sources de lumière, et N est un nombre entier supérieur ou égal à 2. L'utilisation du module de lentille pour focaliser directement N faisceaux lumineux sur la surface cible de détection du module de détection photoélectrique réduit la lumière perdue en raison de la combinaison des N faisceaux lumineux en un seul faisceau lumineux par l'intermédiaire d'un procédé de combinaison cohérente ou de combinaison incohérente, ce qui permet d'atteindre l'objectif de réduction de la perte de lumière, et d'améliorer ainsi l'efficacité de transmission de signal optique.
PCT/CN2022/137902 2022-12-09 2022-12-09 Appareil de conversion photoélectrique, procédé de commande et dispositif de réseau WO2024119475A1 (fr)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4773722A (en) * 1980-06-17 1988-09-27 Cselt Centro Studi E Laboratori Telecomunicazioni S.P.A. Two-way coupler for optical fibers
US5982962A (en) * 1997-03-29 1999-11-09 Koops; Hans W. P. Fiber-integrated microlenses and optical fiber FBG couplers, spectrometers, and multiplexers comprised thereof
US20020163684A1 (en) * 2000-12-13 2002-11-07 Ar Card Optical noise reduction apparatus and method
US20170214839A1 (en) * 2016-01-27 2017-07-27 Raytheon Company Active imaging systems and method
CN107102405A (zh) * 2016-02-19 2017-08-29 深圳新飞通光电子技术有限公司 一种带光束调整器的光发射组件、光接收组件及光模块
CN115327570A (zh) * 2022-08-30 2022-11-11 合肥工业大学 一种多孔径激光雷达接收系统

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4773722A (en) * 1980-06-17 1988-09-27 Cselt Centro Studi E Laboratori Telecomunicazioni S.P.A. Two-way coupler for optical fibers
US5982962A (en) * 1997-03-29 1999-11-09 Koops; Hans W. P. Fiber-integrated microlenses and optical fiber FBG couplers, spectrometers, and multiplexers comprised thereof
US20020163684A1 (en) * 2000-12-13 2002-11-07 Ar Card Optical noise reduction apparatus and method
US20170214839A1 (en) * 2016-01-27 2017-07-27 Raytheon Company Active imaging systems and method
CN107102405A (zh) * 2016-02-19 2017-08-29 深圳新飞通光电子技术有限公司 一种带光束调整器的光发射组件、光接收组件及光模块
CN115327570A (zh) * 2022-08-30 2022-11-11 合肥工业大学 一种多孔径激光雷达接收系统

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