Transmitting and receiving light beam isolation method and device, equipment, storage medium and product

Abstract

The invention discloses a receiving and transmitting light beam isolation method, device and equipment, a storage medium and a product, the receiving and transmitting light beam isolation equipment comprises an array antenna, a coupling system, a communication transmitter, an optical fiber circulator and a modulated fiber grating assembly, and the optical fiber circulator is connected with the communication transmitter, the coupling system and the modulated fiber grating assembly. Signal light enters the isolation module through the array antenna and the coupling system. The receiving and transmitting light beam isolation method comprises the following steps: performing primary isolation on local light emitted by a communication transmitter and signal light received by a coupling system through an optical fiber circulator to obtain mixed light entering a modulatable fiber grating assembly; and performing secondary isolation on the mixed light according to the modulatable fiber bragg grating assembly to obtain a transmitting and receiving light beam isolation result. Compared with an existing mode that light beam isolation is achieved through a light splitting light path composed of a light splitting assembly, a narrow-band light filter, an axis folding mirror and the like, the mode of the invention can improve the isolation efficiency of the received and transmitted light beams.

Description

Technical Field

[0001] The present application relates to the field of laser communication technology, and in particular to a method, device, equipment, storage medium and product for isolating transceiver light beams. Background Art

[0002] In the intersatellite laser communication system, after the laser emitted by the target source enters the phased array element antenna, the transmit and receive beams are isolated through the splitter module, and finally the received signal is forwarded to the detection system and communication system. The role of the splitter module is to isolate the transmit and receive beams to prevent local light from affecting the detection, reception and processing of signal light. The degree of isolation is an important indicator to measure the quality of the laser communication system, which will directly affect the communication distance and bit error rate of laser communication.

[0003] At present, the isolation module commonly used in the integrated space laser communication optical system is still realized through the splitter optical path composed of splitter components, narrowband filters and folding mirrors. It is large in size, heavy in weight, high in power consumption, and has poor isolation ability. In addition, traditional filters can only transmit lasers of specific wavelengths, which also leads to poor compatibility of traditional laser communication systems. Therefore, how to effectively prevent local light from affecting the detection, reception and processing of signal light has become a technical problem that needs to be solved urgently. Summary of the invention

[0004] The main purpose of the present application is to provide a method, device, equipment, storage medium and product for isolating transceiver light beams, aiming to solve the technical problem that the existing light beam isolation module has low isolation efficiency for local light and signal light.

[0005] To achieve the above-mentioned purpose, the present application proposes a method for isolating a transceiver beam, which is applied to a transceiver beam isolation device, which includes an array antenna, a coupling system, a communication transmitter and an isolation module, and the isolation module includes a fiber circulator and a modulated fiber grating component, and the fiber circulator is respectively connected to the communication transmitter, the coupling system and the modulated fiber grating component, and the signal light enters the isolation module through the array antenna and the coupling system;

[0006] The method for isolating the transmitting and receiving light beams comprises the following steps:

[0007] The local light emitted by the communication transmitter and the signal light received by the coupling system are first-level isolated by the fiber circulator to obtain mixed light entering the modulated fiber grating assembly;

[0008] The mixed light is subjected to secondary isolation according to the modulatable fiber grating component to obtain a result of isolation of the transmitting and receiving light beams.

[0009] Optionally, the modulatable fiber Bragg grating assembly comprises a first translation stage, a fiber Bragg grating, a second translation stage and a stepper motor, and the stepper motor and the fiber Bragg grating are connected via the first translation stage and the second translation stage;

[0010] The step of performing secondary isolation on the mixed light according to the modulatable fiber grating component to obtain the isolation result of the transmitting and receiving light beams comprises:

[0011] Sending a control signal to the stepper motor, so that the stepper motor stretches the first translation stage and the second translation stage according to the control signal to obtain the stretched fiber Bragg grating;

[0012] The mixed light is subjected to secondary isolation according to the stretched Bragg fiber grating to obtain a result of isolation of the transmitting and receiving light beams.

[0013] Optionally, after the step of performing secondary isolation on the mixed light according to the modulatable fiber grating component to obtain the isolation result of the transmitting and receiving light beams, the step further includes:

[0014] Determine the target signal light after secondary isolation according to the isolation result of the transmitting and receiving light beams;

[0015] Determining whether the target signal light and the local oscillator light satisfy wavefront matching;

[0016] When the target signal light and the local oscillator light satisfy wavefront matching, three-level isolation is performed on the target signal light.

[0017] Optionally, when the target signal light and the local oscillator light satisfy wavefront matching, the step of performing three-level isolation on the target signal light includes:

[0018] When the target signal light and the local oscillator light meet the wavefront matching, the target signal light is isolated at three levels by using the heterodyne coherence method of laser coherent detection.

[0019] Optionally, after the step of determining whether the target signal light and the local oscillator light satisfy wavefront matching, the method further includes:

[0020] When the target signal light and the local oscillator light do not satisfy wavefront matching, the signal light is shifted.

[0021] Optionally, the fiber optic circulator is a 3-port fiber optic circulator, and the 3-port fiber optic circulator is respectively connected to the communication transmitter, the coupling system and the modulated fiber grating assembly.

[0022] In addition, to achieve the above-mentioned purpose, the present application also proposes a transceiver beam isolation device, which is applied to the transceiver beam isolation method described above, and the transceiver beam isolation device includes:

[0023] A primary isolation module, used for performing primary isolation on the local light emitted by the communication transmitter and the signal light received by the coupling system through the fiber circulator to obtain mixed light entering the modulated fiber grating assembly;

[0024] The secondary isolation module is used to perform secondary isolation on the mixed light according to the modulatable fiber grating component to obtain the isolation result of the transmitting and receiving light beams.

[0025] In addition, to achieve the above-mentioned purpose, the present application also proposes a transceiver light beam isolation device, which includes: a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the computer program is configured to implement the steps of the transceiver light beam isolation method as described above.

[0026] In addition, to achieve the above-mentioned purpose, the present application also proposes a storage medium, which is a computer-readable storage medium, and a computer program is stored on the storage medium. When the computer program is executed by the processor, the steps of the method for isolating the transceiver light beams described above are implemented.

[0027] In addition, to achieve the above-mentioned purpose, the present application also provides a computer program product, which includes a computer program, and when the computer program is executed by a processor, the steps of the method for isolating the transceiver light beams described above are implemented.

[0028] The transceiver beam isolation method proposed in the present application is applied to a transceiver beam isolation device, the transceiver beam isolation device includes an array antenna, a coupling system, a communication transmitter and an isolation module, the isolation module includes a fiber circulator and a modulated fiber grating assembly, the fiber circulator is respectively connected to the communication transmitter, the coupling system and the modulated fiber grating assembly, and the signal light enters the isolation module through the array antenna and the coupling system; the transceiver beam isolation method includes the following steps: the local light emitted by the communication transmitter and the signal light received by the coupling system are firstly isolated by the fiber circulator to obtain a mixed light entering the modulated fiber grating assembly; the mixed light is secondarily isolated according to the modulated fiber grating assembly to obtain the transceiver beam isolation result. Since the present application isolates the transceiver beams by the fiber circulator and the modulated fiber grating assembly, compared with the existing method of realizing beam isolation by a splitter optical path composed of a splitter assembly, a narrow-band filter and a folding mirror, the above method of the present application can improve the efficiency of transceiver beam isolation. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0030] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0031] Figure 1 A schematic diagram of a flow chart provided for Embodiment 1 of the method for isolating a transmitting and receiving light beam of the present application;

[0032] Figure 2 A structural schematic diagram of Embodiment 1 of the method for isolating a transmitting and receiving light beam of the present application;

[0033] Figure 3 A schematic diagram of the structure of a modulatable fiber Bragg grating assembly provided in Embodiment 1 of the method for isolating a transmitting and receiving light beam of the present application;

[0034] Figure 4 A schematic diagram of a flow chart provided for Embodiment 2 of the method for isolating a transmitting and receiving light beam of the present application;

[0035] Figure 5 This is a schematic diagram of the module structure of the transceiver light beam isolation device according to an embodiment of the present application;

[0036] Figure 6 Schematic diagram of the device structure of the hardware operating environment involved in the method for isolating the transceiver light beams in the embodiment of the present application.

[0037] The purpose, features and advantages of this application will be further described in conjunction with the embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0038] It should be understood that the specific embodiments described herein are only used to explain the technical solutions of the present application and are not used to limit the present application.

[0039] In order to better understand the technical solution of the present application, a detailed description will be given below in conjunction with the accompanying drawings and specific implementation methods.

[0040] The main solution of the embodiment of the present application is: the transceiver beam isolation method proposed in the embodiment of the present application is applied to the transceiver beam isolation device, the transceiver beam isolation device includes an array antenna, a coupling system, a communication transmitter and an isolation module, the isolation module includes a fiber circulator and a modulated fiber grating component, the fiber circulator is respectively connected to the communication transmitter, the coupling system and the modulated fiber grating component, and the signal light enters the isolation module through the array antenna and the coupling system; the transceiver beam isolation method includes the following steps: the local light emitted by the communication transmitter and the signal light received by the coupling system are first-level isolated by the fiber circulator to obtain the mixed light entering the modulated fiber grating component; the mixed light is second-level isolated according to the modulated fiber grating component to obtain the transceiver beam isolation result. Since the present application isolates the transceiver beam by the fiber circulator and the modulated fiber grating component, compared with the existing method of realizing beam isolation by the splitter optical path composed of a splitter component, a narrow-band filter and a folding mirror, the above method of the present application can improve the efficiency of the transceiver beam isolation.

[0041] It should be noted that the execution subject of this embodiment can be a computing service device with data processing, network communication and program running functions, such as a tablet computer, a personal computer, a mobile phone, etc., or an electronic device capable of realizing the above functions, a transceiver light beam isolation device, etc. The following takes the transceiver light beam isolation device as an example to illustrate this embodiment and the following embodiments.

[0042] Based on this, the embodiment of the present application provides a method for isolating a transmitting and receiving light beam, referring to Figure 1 , Figure 1 This is a flow chart of the first embodiment of the method for isolating the transmitting and receiving light beams of the present application.

[0043] In this embodiment, the transceiver beam isolation method is applied to a transceiver beam isolation device, which includes an array antenna, a coupling system, a communication transmitter and an isolation module. The isolation module includes a fiber circulator and a modulated fiber grating component. The fiber circulator is connected to the communication transmitter, the coupling system and the modulated fiber grating component respectively. The signal light enters the isolation module through the array antenna and the coupling system.

[0044] The method for isolating the transmitting and receiving light beams comprises steps S10 to S20:

[0045] Step S10, performing primary isolation on the local light emitted by the communication transmitter and the signal light received by the coupling system through the fiber circulator to obtain mixed light entering the modulated fiber grating assembly;

[0046] It should be noted that, please refer to Figure 2 , Figure 2 The schematic diagram of the structure provided for the first embodiment of the transceiver beam isolation method of the present application, the transceiver beam isolation device in this embodiment comprises a signal light 1, an array antenna 2, a coupling system 3, an isolation system (i.e., the isolation module mentioned above) 4, a 3-port fiber circulator 4-1, a modulated fiber grating assembly 4-2, a communication transmitter 5, a communication receiver 6, a local oscillator laser 4-3, a detector 7, and a controller 8. The fiber circulator is a mature passive fiber optic device, and the characteristics of the 3-port fiber circulator are: the laser incident from port 1 is only emitted from port 2, and the laser incident from port 2 is only emitted from port 3.

[0047] It should be noted that after the signal light 1 enters the array antenna 2 in the form of spatial light, it enters the isolation system 4 through the coupling system 3, and the first-level isolation of the receiving and transmitting light beams is achieved through the fiber circulator 4-1. The communication transmitter 5 is connected to the port 1 of the fiber circulator 4-1 through an optical fiber, the coupling system 3 is connected to the port 2 of the fiber circulator 4-1 through an optical fiber, and the modulated fiber grating component 4-2 is connected to the port 3 of the fiber circulator 4-1 through an optical fiber. The characteristics of the 3-port fiber circulator can be used to achieve the first-level isolation of local light and signal light.

[0048] Step S20, performing secondary isolation on the mixed light according to the modulatable fiber grating assembly to obtain a transmit and receive light beam isolation result.

[0049] It should be noted that, since the local light energy emitted by the communication transmitter 5 is relatively high, although most of the local laser light is emitted through the array antenna 2 after passing through the port 2 of the fiber circulator 4-1, a small part of the local light still enters the modulated fiber grating assembly 4-2 together with the signal light through the port 3 of the fiber circulator 4-1. Therefore, it is also necessary to perform secondary isolation on the mixed light entering the modulated fiber grating assembly. Specifically, the modulated fiber grating assembly includes a first translation stage, a Bragg fiber grating, a second translation stage, and a stepper motor, and the stepper motor is connected to the Bragg fiber grating through the first translation stage and the second translation stage;

[0050] The step of performing secondary isolation on the mixed light according to the modulatable fiber grating component to obtain the isolation result of the transmitting and receiving light beams comprises:

[0051] Sending a control signal to the stepper motor, so that the stepper motor stretches the first translation stage and the second translation stage according to the control signal to obtain the stretched fiber Bragg grating;

[0052] The mixed light is subjected to secondary isolation according to the stretched Bragg fiber grating to obtain a result of isolation of the transmitting and receiving light beams.

[0053] It should be noted that, please refer to Figure 3 , Figure 3 A schematic diagram of the structure of a modulatable fiber Bragg grating assembly provided in Example 1 of the method for isolating the receiving and transmitting light beams of the present application; the modulatable fiber Bragg grating assembly includes a translation stage 4-2-1 (i.e., the first translation stage), a fiber Bragg grating 4-2-2, a translation stage 4-2-3 (i.e., the second translation stage), a host computer 4-2-4, and a stepper motor 4-2-5. The stepper motor 4-2-5 is connected to the Bragg grating 4-2-2 through the translation stage 4-2-1 and the translation stage 4-2-3. The fiber Bragg grating 4-2-2 adopts an axial compression adjustment technology. The fiber Bragg grating will produce strain under the tensile action of the translation stage 4-2-1 and the translation stage 4-2-3, and the grating period will change accordingly. According to the Bragg wavelength formula, the Bragg wavelength will drift. In this embodiment, the modulatable fiber Bragg grating assembly is used to perform secondary isolation on the mixed light according to this principle. The secondary isolation of the mixed light according to the modulated fiber grating component can obtain the isolation result of the transceiver light beam by the host computer 4-2-4 sending an appropriate pulse sequence and control signal (factory setting) to the driver (i.e., stepper motor) through the control program, so that the Bragg grating 4-2-2 can be adjusted to the desired position. After the light beam passes through the modulated fiber grating component 4-2, the local light is further filtered. At this time, the modulated fiber grating component 4-2 realizes the secondary isolation of the transceiver light beam, and the residual intensity of the local light is also less than the signal light.

[0054] The transceiver beam isolation method of this embodiment is applied to a transceiver beam isolation device, the transceiver beam isolation device includes an array antenna, a coupling system, a communication transmitter and an isolation module, the isolation module includes a fiber circulator and a modulated fiber grating component, the fiber circulator is respectively connected to the communication transmitter, the coupling system and the modulated fiber grating component, and the signal light enters the isolation module through the array antenna and the coupling system; the transceiver beam isolation method includes the following steps: the local light emitted by the communication transmitter and the signal light received by the coupling system are firstly isolated by the fiber circulator to obtain a mixed light entering the modulated fiber grating component; the mixed light is secondarily isolated according to the modulated fiber grating component to obtain the transceiver beam isolation result. Since the transceiver beam is isolated by the fiber circulator and the modulated fiber grating component in this embodiment, compared with the existing method of realizing beam isolation by a splitter optical path composed of a splitter component, a narrow-band filter and a folding mirror, the above method of this embodiment can improve the efficiency of transceiver beam isolation.

[0055] Based on the first embodiment of the present application, in the second embodiment of the present application, the same or similar contents as those in the above-mentioned embodiment 1 can be referred to the above introduction, and will not be repeated in the following. Figure 4 , Figure 4The flowchart of the second embodiment of the method for isolating the transceiver light beam of the present application is provided. After step S20, the following steps are also included:

[0056] Step S3201: determining the target signal light after secondary isolation according to the isolation result of the transmitting and receiving light beams;

[0057] It should be noted that the target signal light is the signal light isolated after the above steps S10 and S20.

[0058] Step S302: determining whether the target signal light and the local oscillator light satisfy wavefront matching;

[0059] It should be noted that wavefront matching, also known as phase matching, is a technology that ensures effective interaction of light waves. In optical processes, especially nonlinear optical processes, light waves of different wavelengths interact to produce light waves of new wavelengths. In order to ensure that these processes are carried out efficiently, the wavefronts (i.e., the phases of the light waves) involved must be correctly aligned or "matched". After the step of determining whether the target signal light and the local oscillator light meet the wavefront matching, it also includes: when the target signal light and the local oscillator light do not meet the wavefront matching, the signal light is shifted.

[0060] Step S303: When the target signal light and the local oscillator light satisfy wavefront matching, perform three-level isolation on the target signal light.

[0061] It should be noted that the three-level isolation of the target signal light may be performed by using a heterodyne coherence method of laser coherent detection to perform three-level isolation of the target signal light.

[0062] In a specific implementation, after the mixed light is subjected to secondary isolation according to the modulated fiber grating assembly, the signal light is mixed with the local oscillator light. Due to the coherent detection system of the laser, the local light will be further isolated, that is, the heterodyne coherence method using laser coherent detection can further achieve three-level isolation of the receiving and transmitting light beams (heterodyne coherent detection can be achieved only when the signal light and the local oscillator light meet the wavefront matching, so the detection method itself has isolation capability). Therefore, this embodiment achieves three-level isolation of the receiving and transmitting light beams, and will have a higher isolation degree and anti-interference capability.

[0063] This embodiment determines the target signal light after secondary isolation according to the result of the isolation of the transmitting and receiving light beams; determines whether the target signal light and the local oscillator light meet the wavefront matching; and performs three-level isolation on the target signal light when the target signal light and the local oscillator light meet the wavefront matching. This embodiment further improves the efficiency of light beam isolation by performing three-level isolation on the target signal light.

[0064] It should be noted that the above examples are only used to understand the present application and do not constitute a limitation on the method for isolating the transceiver light beams of the present application. More simple transformations based on this technical concept are all within the scope of protection of the present application.

[0065] This application also provides a transceiver beam isolation device, please refer to Figure 5 The transceiver beam isolation device is applied to the transceiver beam isolation method, and the transceiver beam isolation device comprises:

[0066] A primary isolation module 10, used for performing primary isolation on the local light emitted by the communication transmitter and the signal light received by the coupling system through the fiber circulator to obtain mixed light entering the modulated fiber grating assembly;

[0067] The secondary isolation module 20 is used to perform secondary isolation on the mixed light according to the modulatable fiber grating component to obtain a transmit and receive light beam isolation result.

[0068] In this embodiment, the local light emitted by the communication transmitter and the signal light received by the coupling system are firstly isolated by the fiber circulator to obtain the mixed light entering the modulated fiber grating component; the mixed light is secondarily isolated according to the modulated fiber grating component to obtain the isolation result of the transmitting and receiving light beams. Since the present embodiment isolates the transmitting and receiving light beams by the fiber circulator and the modulated fiber grating component, compared with the existing method of realizing light beam isolation by the splitting optical path composed of the splitting component, the narrow-band filter and the folding mirror, the above method of the present embodiment can improve the isolation efficiency of the transmitting and receiving light beams.

[0069] The transceiver beam isolation device provided by the present application adopts the transceiver beam isolation method in the above embodiment, which can solve the technical problem that the existing beam isolation module has low isolation efficiency for local light and signal light. Compared with the prior art, the beneficial effects of the transceiver beam isolation device provided by the present application are the same as the beneficial effects of the transceiver beam isolation method provided by the above embodiment, and other technical features in the transceiver beam isolation device are the same as the features disclosed in the above embodiment method, which will not be repeated here.

[0070] The present application provides a transceiver light beam isolation device, which includes: at least one processor; and a memory connected to the at least one processor in communication; wherein the memory stores instructions that can be executed by the at least one processor, and the instructions are executed by the at least one processor so that the at least one processor can execute the transceiver light beam isolation method in the above-mentioned embodiment one.

[0071] Reference below Figure 6, which shows a schematic diagram of the structure of a transceiver beam isolation device suitable for implementing the embodiment of the present application. The transceiver beam isolation device in the embodiment of the present application may include but is not limited to mobile terminals such as mobile phones, laptop computers, digital broadcast receivers, PDAs (Personal Digital Assistants), PADs (Portable Application Descriptions), PMPs (Portable Media Players), vehicle-mounted terminals (such as vehicle-mounted navigation terminals), etc., and fixed terminals such as digital TVs, desktop computers, etc. Figure 6 The transceiver light beam isolation device shown is merely an example and should not bring any limitation to the functions and scope of use of the embodiments of the present application.

[0072] like Figure 6 As shown, the transceiver beam isolation device may include a processing device 1001 (such as a central processing unit, a graphics processor, etc.), which can perform various appropriate actions and processes according to a program stored in a read-only memory (ROM: Read Only Me mory) 1002 or a program loaded from a storage device 1003 to a random access memory (RAM: Random Access Memory) 1004. In RAM1004, various programs and data required for the operation of the transceiver beam isolation device are also stored. The processing device 1001, ROM1002 and RAM1004 are connected to each other through a bus 1005. An input / output (I / O) interface 1006 is also connected to the bus. Typically, the following systems can be connected to the I / O interface 1006: input devices 1007 including, for example, a touch screen, a touchpad, a keyboard, a mouse, an image sensor, a microphone, an accelerometer, a gyroscope, etc.; output devices 1008 including, for example, a liquid crystal display (LCD), a speaker, a vibrator, etc.; storage devices 1003 including, for example, a magnetic tape, a hard disk, etc.; and communication devices 1009. The communication device 1009 can allow the transceiver beam isolation device to communicate with other devices wirelessly or by wire to exchange data. Although the transceiver beam isolation device with various systems is shown in the figure, it should be understood that it is not required to implement or have all the systems shown. More or fewer systems may be implemented or have instead.

[0073] In particular, according to the embodiments disclosed in the present application, the process described above with reference to the flowchart can be implemented as a computer software program. For example, the embodiments disclosed in the present application include a computer program product, which includes a computer program carried on a computer-readable medium, and the computer program includes a program code for executing the method shown in the flowchart. In such an embodiment, the computer program can be downloaded and installed from a network through a communication device, or installed from a storage device 1003, or installed from a ROM 1002. When the computer program is executed by the processing device 1001, the above-mentioned functions defined in the method of the embodiment disclosed in the present application are executed.

[0074] The transceiver beam isolation device provided by the present application adopts the transceiver beam isolation method in the above embodiment, which can solve the technical problem that the existing beam isolation module has low isolation efficiency for local light and signal light. Compared with the prior art, the beneficial effects of the transceiver beam isolation device provided by the present application are the same as the beneficial effects of the transceiver beam isolation method provided by the above embodiment, and other technical features in the transceiver beam isolation device are the same as the features disclosed in the previous embodiment method, which will not be repeated here.

[0075] It should be understood that the various parts disclosed in this application can be implemented by hardware, software, firmware or a combination thereof. In the description of the above embodiments, specific features, structures, materials or characteristics can be combined in any one or more embodiments or examples in a suitable manner.

[0076] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

[0077] The present application provides a computer-readable storage medium having computer-readable program instructions (ie, computer programs) stored thereon, and the computer-readable program instructions are used to execute the method for isolating the transceiver light beams in the above-mentioned embodiment.

[0078] The computer-readable storage medium provided in the present application may be, for example, a USB flash drive, but is not limited to electrical, magnetic, optical, electromagnetic, infrared, or semiconductor systems, systems or devices, or any combination of the above. More specific examples of computer-readable storage media may include, but are not limited to: an electrical connection with one or more wires, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the above. In this embodiment, the computer-readable storage medium may be any tangible medium containing or storing a program that can be used by or in combination with an instruction execution system, system or device. The program code contained on the computer-readable storage medium may be transmitted using any appropriate medium, including but not limited to: wires, optical cables, RF (Radio Frequency), etc., or any suitable combination of the above.

[0079] The computer-readable storage medium may be included in the transceiver light beam isolation device; or may exist independently without being assembled into the transceiver light beam isolation device.

[0080] The computer-readable storage medium carries one or more programs. When the one or more programs are executed by the transceiver beam isolation device, the transceiver beam isolation device executes the transceiver beam isolation method.

[0081] Computer program code for performing the operations of the present application may be written in one or more programming languages ​​or a combination thereof, including object-oriented programming languages ​​such as Java, Smalltalk, C++, and conventional procedural programming languages ​​such as "C" or similar programming languages. The program code may be executed entirely on the user's computer, partially on the user's computer, as a separate software package, partially on the user's computer and partially on a remote computer, or entirely on a remote computer or server. In the case of a remote computer, the remote computer may be connected to the user's computer through any type of network, including a local area network (LAN) or a wide area network (WAN), or may be connected to an external computer (e.g., via the Internet using an Internet service provider).

[0082] The flow chart and block diagram in the accompanying drawings illustrate the possible architecture, function and operation of the system, method and computer program product according to various embodiments of the present application. In this regard, each square box in the flow chart or block diagram can represent a module, a program segment or a part of a code, and the module, the program segment or a part of the code contains one or more executable instructions for realizing the specified logical function. It should also be noted that in some alternative implementations, the functions marked in the square box can also occur in a sequence different from that marked in the accompanying drawings. For example, two square boxes represented in succession can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, depending on the functions involved. It should also be noted that each square box in the block diagram and / or flow chart, and the combination of the square boxes in the block diagram and / or flow chart can be implemented with a dedicated hardware-based system that performs a specified function or operation, or can be implemented with a combination of dedicated hardware and computer instructions.

[0083] The modules involved in the embodiments described in this application may be implemented by software or hardware, wherein the name of the module does not constitute a limitation on the unit itself in some cases.

[0084] The readable storage medium provided by the present application is a computer-readable storage medium, which stores computer-readable program instructions (i.e., computer programs) for executing the above-mentioned transceiver light beam isolation method, and can solve the technical problem that the existing light beam isolation module has low isolation efficiency for local light and signal light. Compared with the prior art, the beneficial effects of the computer-readable storage medium provided by the present application are the same as the beneficial effects of the transceiver light beam isolation method provided by the above-mentioned embodiment, and will not be repeated here.

[0085] The present application also provides a computer program product, including a computer program, which implements the steps of the above-mentioned method for isolating transceiver light beams when executed by a processor.

[0086] The computer program product provided by the present application can solve the technical problem that the existing beam isolation module has low isolation efficiency for local light and signal light. Compared with the prior art, the beneficial effects of the computer program product provided by the present application are the same as the beneficial effects of the transceiver beam isolation method provided by the above embodiment, and will not be described in detail here.

[0087] The above descriptions are only some embodiments of the present application, and are not intended to limit the patent scope of the present application. All equivalent structural changes made using the contents of the present application specification and drawings under the technical concept of the present application, or direct / indirect applications in other related technical fields are included in the patent protection scope of the present application.

Claims

1. A method for isolating a transmitting and receiving light beam, characterized in that: The transceiver beam isolation method is applied to a transceiver beam isolation device, which includes an array antenna, a coupling system, a communication transmitter and an isolation module, wherein the isolation module includes a fiber circulator and a modulated fiber grating component, wherein the fiber circulator is connected to the communication transmitter, the coupling system and the modulated fiber grating component respectively, and the signal light enters the isolation module through the array antenna and the coupling system; The method for isolating the transmitting and receiving light beams comprises the following steps: The local light emitted by the communication transmitter and the signal light received by the coupling system are first-level isolated by the fiber circulator to obtain mixed light entering the modulated fiber grating assembly; The mixed light is subjected to secondary isolation according to the modulatable fiber grating component to obtain a result of isolation of the transmitting and receiving light beams.

2. The method for isolating the transmitting and receiving light beams as claimed in claim 1, characterized in that: The modulatable fiber Bragg grating assembly comprises a first translation stage, a fiber Bragg grating, a second translation stage and a stepping motor, wherein the stepping motor and the fiber Bragg grating are connected via the first translation stage and the second translation stage; The step of performing secondary isolation on the mixed light according to the modulatable fiber grating component to obtain the isolation result of the transmitting and receiving light beams comprises: Sending a control signal to the stepper motor, so that the stepper motor stretches the first translation stage and the second translation stage according to the control signal to obtain the stretched fiber Bragg grating; The mixed light is subjected to secondary isolation according to the stretched Bragg fiber grating to obtain a result of isolation of the transmitting and receiving light beams.

3. The method for isolating the transmitting and receiving light beams as claimed in claim 1, characterized in that: After the step of performing secondary isolation on the mixed light according to the modulatable fiber grating assembly to obtain the isolation result of the transmitting and receiving light beams, the method further includes: Determine the target signal light after secondary isolation according to the isolation result of the transmitting and receiving light beams; Determining whether the target signal light and the local oscillator light satisfy wavefront matching; When the target signal light and the local oscillator light satisfy wavefront matching, three-level isolation is performed on the target signal light.

4. The method for isolating the transmitting and receiving light beams as claimed in claim 3, characterized in that: The step of performing three-level isolation on the target signal light when the target signal light and the local oscillator light meet wavefront matching comprises: When the target signal light and the local oscillator light meet the wavefront matching, the target signal light is isolated at three levels by using the heterodyne coherence method of laser coherent detection.

5. The method for isolating the transmitting and receiving light beams as claimed in claim 3, characterized in that: After the step of determining whether the target signal light and the local oscillator light satisfy wavefront matching, the method further includes: When the target signal light and the local oscillator light do not satisfy wavefront matching, the signal light is shifted.

6. The method for isolating a transmitting and receiving light beam according to any one of claims 1 to 5, characterized in that: The fiber optic circulator is a 3-port fiber optic circulator, and the 3-port fiber optic circulator is respectively connected to the communication transmitter, the coupling system and the modulated fiber grating component.

7. A transceiver light beam isolation device, characterized in that: The transceiver light beam isolation device is applied to the transceiver light beam isolation method according to any one of claims 1 to 6, and the transceiver light beam isolation device comprises: A primary isolation module, used for performing primary isolation on the local light emitted by the communication transmitter and the signal light received by the coupling system through the fiber circulator to obtain mixed light entering the modulated fiber grating assembly; The secondary isolation module is used to perform secondary isolation on the mixed light according to the modulatable fiber grating component to obtain the isolation result of the transmitting and receiving light beams.

8. A transceiver light beam isolation device, characterized in that: The device comprises: a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the computer program is configured to implement the steps of the method for isolating the transmitting and receiving light beams according to any one of claims 1 to 6.

9. A storage medium, characterized in that: The storage medium is a computer-readable storage medium, and a computer program is stored on the storage medium. When the computer program is executed by a processor, the steps of the method for isolating the transmitting and receiving light beams as described in any one of claims 1 to 6 are implemented.

10. A computer program product, characterized in that The computer program product comprises a computer program, and when the computer program is executed by a processor, the steps of the method for isolating the transmitting and receiving light beams according to any one of claims 1 to 6 are implemented.

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