3906 results about "Optical communication" patented technology

Disclosed herein is an angular optical component retention and removal system that reduces the amount of space needed to accommodate fiber optic cables and enables optical components to be quickly and easily inserted, retained, and removed from an optical communications system. The optical component retention and removal system may include a single or plural angular retention sections that retain optical components in an angular orientation through a faceplate. The system may further include an insertion / retention mechanism that enables an optical component to be inserted and removed with a single hand. With the system, fiber optic cables extend at an angle from the optical components, requiring less clearance space in front of the faceplate for provision of the fiber optic cables.

Described herein are systems and methods for analyzing biological samples. Including a method for processing an analyte, comprising providing a fluidic device comprising the analyte and one or more polymer precursors; selecting a discrete area within said fluidic device; providing an energy source in optical communication with fluidic device; and selectively supplying a unit of energy generated from the energy source to the fluidic device to generate a polymer matrix within the fluidic device, wherein the polymer matrix is within the discrete area or adjacent to the discrete area.

The invention relates to the technical field of edge computing, and discloses an intelligent edge computing co-processing system based on an integrated circuit, which comprises a heterogeneous computing cluster module, a hardware computing unit set, a multi-core control processor based on RISC-V, a programmable pulse tensor computing array and a reconfigurable engine oriented to streaming processing, according to the intelligent edge computing cooperative processing system based on the integrated circuit, zero-delay data exchange is realized through silicon intermediate layer integration of the heterogeneous computing cluster module and a snakelike data channel, and traditional bus arbitration delay is eliminated through real-time operation code analysis and optimal optical communication path mapping of the hardware task routing matrix (TRF) module; the priority path distribution of the task scheduling subsystem is synchronously coordinated with the time-sensitive task, so that the collaborative efficiency of the computing unit is improved in multiple dimensions, the non-blocking transmission of the high-priority task is ensured, and the effect of enhancing the overall processing capability and response speed of the intelligent edge computing is achieved.

The invention relates to the technical field of underwater communication and positioning, in particular to a multi-mode underwater wireless communication system based on dynamic link calibration, which integrates underwater acoustic positioning guide, attitude adaptive tracking control, optical link enhancement and an error code correction mechanism. Comprising a central control core, an acoustic communication unit, an optical communication transmitting unit, an optical signal receiving unit, an optical control unit, a multi-axis attitude adjusting unit, a data fusion and verification processing unit and a high-speed modulation-demodulation and error code correction unit. And by using a double-shaft servo motor and automatic gain control, real-time target tracking and accurate alignment of optical signals are realized, FPGA and OFDM modulation are combined to optimize data throughput, and a data cross validation mechanism is introduced to correct error codes, so that the data integrity is improved.

The utility model provides a photoelectric co-packaging structure and an optical module, and relates to the technical field of optical communication. The photoelectric co-packaging structure comprises a multi-layer circuit board, a photon integrated circuit chip and an anti-warping piece. An optical waveguide and an optical coupling port connected with the optical waveguide are arranged in the photon integrated circuit chip; and the optical coupling port is used for optically coupling with an optical element outside the photonic integrated circuit chip. The photon integrated circuit chip is flip-chip welded on the multilayer circuit board and is electrically connected with the multilayer circuit board. The anti-warping piece is arranged in the multi-layer circuit board; the projection of the photonic integrated circuit chip on the surface of the multilayer circuit board and the projection of the anti-warping piece on the surface of the multilayer circuit board are at least partially overlapped. The multi-layer circuit board is provided with the anti-warping piece, so that the packaging stress can be reduced, the warping deformation of the multi-layer circuit board and the photon integrated circuit chip is reduced, and the packaging quality and reliability are improved.

Methods and devices for analyzing a sample from a subject are provided. A device includes one or more coherent light sources and one or more partially coherent light sources. The light sources are configured to emit first and second wavelengths of electromagnetic radiation towards an imaging chamber configured to hold blood cells. The light sources are aligned to illuminate a single common area of the imaging chamber. The device includes optics positioned to receive light from the imaging chamber, and a detector in optical communication with the optics. The detector is configured to detect fluorescence emission and backscatter from blood cells when present in the imaging chamber. The device includes mixers / unmixers configured to replicate and mix first and second signals representative of the responses to the first and second wavelengths after interacting with the plurality of blood cells to generate spectro-spatial responses.

The invention discloses a wireless optical communication alignment system and a capture alignment method thereof, and relates to the technical field of optical communication, and the method comprises the steps: a three-dimensional holder carries out the coarse alignment of an optical path between a transmitting end and a receiving end according to the direction of beacon light; an alignment device located at the top of the three-dimensional holder carries out fine alignment on the light path; the alignment device comprises a two-dimensional alignment structure, a control circuit and a device shell. The control circuit captures a light intensity feedback value of the light intensity sensor of the two-dimensional alignment structure, and adjusts an azimuth angle and a pitch angle of the optical fiber collimator of the two-dimensional alignment structure according to the light intensity feedback value so as to adjust lens orientations of the transmitting end and the receiving end; the device shell provides a supporting platform for the two-dimensional alignment structure and the control circuit and is connected with the three-dimensional holder. Coarse alignment and fine alignment are combined, accurate angle adjustment is achieved through light intensity feedback, efficient alignment of light paths of the transmitting end and the receiving end is ensured, meanwhile, the device shell provides stable support and connection, and the stability and reliability of the alignment process are guaranteed.

The invention discloses a multi-mode water-air-land cross-medium cooperative sensing system and method based on an MEMS (Micro Electro Mechanical System). The system comprises an underwater robot, a buoy station, an unmanned aerial vehicle and a ground control station, each node is provided with an MEMS sensor integrating acoustics, optics, magnetism, inertia and other modes, and data transmission and relay are achieved through acoustics, optical communication and radio links. And the ground control station carries out fusion processing, target identification and decision control on multi-source data through time synchronization and space registration, and issues a cooperative instruction to each node to realize a perception-decision-re-perception closed loop. The method comprises five steps of node deployment and calibration, multi-modal data acquisition, hierarchical transmission and sharing, adaptive weighted fusion and closed-loop cooperative control. According to the invention, global coverage, high-precision and multi-mode environment and target perception can be provided in a complex water-air-land environment, and the detection reliability and the communication efficiency are significantly improved.

The invention discloses an anti-turbulence multi-parameter frontal light beam generation device and a statistical optimization method, and belongs to the technical field of free space optical communication. According to the method, the transmission stability and the system reliability of the light beam under random disturbance are remarkably improved by designing a multi-parameter regulation and control frontal light beam and combining a statistical optimization method based on a Kolmogorov turbulence model, so that a key solution with engineering feasibility and theoretical innovation is provided for an FSO system in a complex turbulence environment.

The invention discloses an optical terminal intensity instrument and an earthquake monitoring service system and method, and the optical terminal intensity instrument comprises an optical fiber modem and an MEMS sensor module. The optical fiber modem comprises an MCU (Microprogrammed Control Unit) and an optical communication module electrically connected with the MCU; the optical communication module is used for realizing network access and data uploading; the MEMS sensor module is electrically connected with the MCU; the MEMS sensor module is used for collecting seismic intensity data in real time; and the optical fiber modem is used for providing a dual data transmission channel comprising broadband communication and the seismic intensity data. According to the technical scheme provided by the invention, the MEMS sensor is embedded in the optical fiber modem, and a more dense, more efficient and more economical solution is provided for earthquake early warning and intensity rapid reporting.

The invention relates to the technical field of optical communication, in particular to a vapor chamber and an optical module. Heat generated by a heat source is absorbed through the lower shell, then heat absorbed by the lower shell is absorbed by the heat dissipation working medium in the steam cavity, the heat dissipation working medium is changed into a gas state from a liquid state after absorbing heat, and the gas-state heat dissipation working medium is adsorbed on the inner surface of the upper shell, is cooled into a liquid state again and returns to the bottom of the steam cavity again. Therefore, heat dissipation of a heat source in the optical module is realized. The interface contact thermal resistances are only between the heat source and the lower shell and between the upper shell and the external environment, the number of the interface contact thermal resistances on a heat transfer path is greatly reduced, the uniform temperature plate is arranged as a part of the optical module, an integrated enhanced heat dissipation structure is formed, the interface contact thermal resistances caused by split design are prevented from being increased, and the heat dissipation efficiency is improved. The heat dissipation performance of the whole optical module is improved, and the heat dissipation requirement of the high-speed optical module is met.

The invention provides a distributed feedback laser with a double-layer grating structure, and relates to the technical field of lasers, the laser forms an InGaAlAs multi-quantum well active region, an upper sampling grating layer and a lower phase shift grating layer on an n-type InP substrate in sequence, the upper grating layer is designed based on a reconstruction equivalent chirp technology, and the lower phase shift grating layer is designed based on a reconstruction equivalent chirp technology. Two sections of asymmetric modulation areas with sampling periods linearly gradually changing in opposite directions are arranged in the axial direction of the resonant cavity, and the lower grating layer is a quarter-wave phase shift grating matched with the period of the upper seed grating. Through the synergistic effect of equivalent phase modulation and phase shift generated by the double-layer grating, the photon density distribution in the cavity can be improved, the longitudinal space hole burning effect can be weakened, the sensitivity to end face phase fluctuation can be reduced, high single-mode power and large modulation bandwidth can be realized in a wide temperature range, and the double-layer grating is suitable for a high-speed optical communication and coarse wavelength division multiplexing transmission system.

The invention provides a pluggable optical interface structure, and relates to the technical field of optical device packaging, and the pluggable optical interface structure comprises a substrate which is at least provided with an optical chip, and the optical chip is connected with the substrate; and the optical fiber array unit is connected with the optical chip in a positioning and plugging manner, so that the optical fiber array unit is conducted with the optical chip. The optical fiber array unit and the optical chip are connected in a positioning and plugging manner, so that additional structures and steps required by active coupling such as position adjustment of the optical fiber array unit and the optical chip are not required, and the optical fiber array unit and the optical chip can be aligned in a high-precision and passive coupling manner in a positioning and plugging manner; as a structure required by active coupling does not need to be additionally arranged, the packaging process can be greatly simplified, product production and maintenance of use links are facilitated, the production operation efficiency is effectively improved, the product cost is reduced, and the competitiveness of the product is further enhanced.

The invention relates to the technical field of optical communication, and discloses FA coupling equipment and a coupling method thereof.A feeding and discharging part of the coupling equipment comprises a feeding streamline module, a carrying mechanism, a cleaning module and a detection module, a coupling part of the coupling equipment comprises a jig module, a coupling module and a dispensing vision module, an optical module and FA are clamped on an outer support together, and the optical module and the FA are arranged on the outer support. An MPO plug used in the coupling process is integrally clamped on an MPO clamp, automatic feeding and discharging of an optical module and an FA and automatic cleaning, wiping, detection and plugging of the end face of an MPO optical fiber jumper wire can be achieved through coupling equipment, dependence on personnel is reduced, the feeding and discharging difficulty is lowered, and dependence on the skill of an operator is lowered; through the coupling method, the product coupling working efficiency can be improved, the production quality stability is improved, the yield is improved, and the production cost is reduced.

The invention discloses an optical fiber adapter control method and system based on artificial intelligence. The method comprises the following steps: acquiring multi-dimensional data acquired in real time by a multipoint sensor network deployed in an optical communication environment; according to the multi-dimensional data, a filtering algorithm is adopted to remove noise interference, and a cleaned environment state data set is obtained; inputting the environment state data set into a pre-established support vector machine model, and generating an abnormal state identifier and a corresponding environment parameter value if detecting that the temperature data or the vibration data exceed a preset threshold range; predicting a control parameter adjustment scheme of the optical fiber adapter by adopting a deep neural network algorithm according to the abnormal state identifier and the environmental parameter value, and generating a control signal set containing an adjustment instruction; and transmitting the control signal set to an automatic execution module, executing mechanical displacement and optical path calibration operation according to the adjustment instruction, and obtaining adjusted optical signal transmission state data. The reliability, the stability and the operation and maintenance efficiency of the optical communication system are remarkably improved.

The invention relates to the technical field of optical communication, in particular to an algorithm service system and method for an optical transport network, and the system comprises an optical network sensing module which is used for collecting optical layer performance parameters, service flow data and node equipment operation states of the optical transport network; the deep algorithm decision center predicts service traffic based on a space-time diagram convolutional network, and optimizes routing wavelength allocation through reinforcement learning; the strategy adaptation module is used for dynamically generating an operation and maintenance strategy and an energy-saving scheduling instruction according to the prediction result and the optimization scheme; the risk assessment unit is used for assessing a link fault risk, a service interruption risk and a network congestion risk in real time, quantifying a risk weight through an analytic hierarchy process, and optimizing an operation and maintenance strategy in combination with historical fault data; and the intelligent resource reconstruction unit is used for performing optical channel reconstruction according to the optimized operation and maintenance strategy, dynamically allocating optical layer resources or switching redundant transmission paths. Therefore, the problems of poor strategy adaptability, low resource scheduling efficiency, insufficient fault-tolerant capability and the like in the prior art are solved.

The invention provides a point-to-multipoint communication method, device and system, equipment and a storage medium, and belongs to the technical field of optical communication. The method is applied to local side equipment in a point-to-multipoint communication system, and comprises the following steps: acquiring channel parameters of terminal equipment with downlink data currently and the data volume of the downlink data, and generating and sending at least one downlink frame based on the channel parameters of the terminal equipment and the data volume of the downlink data, the downlink frame comprises a plurality of subframes, in each downlink frame, the ith subframe bears management information of the (i + m) th subframe and downlink data of at least one terminal device, and for each subframe, the management information of the subframe comprises an identifier of the terminal device to which the downlink data borne by the subframe belongs and information of an occupied time-frequency resource. By adopting the method disclosed by the invention, point-to-multipoint flexible communication can be realized.

The invention provides an electric power optical communication positioning system and method based on a PLC, and relates to the technical field of PLC electric power optical communication. After a real-time user starts a mobile terminal camera, a real-time optical signal of a target lamp is captured through the camera; the mobile terminal obtains a real-time ID and a real-time physical coordinate by decoding the real-time optical signal; after receiving a target parking space number input by a real-time user, the mobile terminal matches a parking space lamp ID and a parking space physical coordinate pre-bound with the target parking space number; and calculating a navigation path according to the real-time physical coordinates and the parking space physical coordinates, and outputting a real-time navigation path. The technical problem that in the prior art, due to the fact that underground space positioning is high in cost, poor in precision and prone to interruption of positioning communication, sub-meter continuous positioning and intensive management are difficult to carry out in a network-free underground space is solved. The comprehensive technical effects of remarkably saving the cost, improving the positioning precision, optimizing the user experience and enhancing the management efficiency are achieved.

The invention relates to the technical field of optical communication, and discloses an optical module adaptive test and rapid convergence method based on reinforcement learning, which can dynamically generate and execute an optimal test sequence for optical modules of different types or states through an off-line trained RL intelligent agent module, avoids redundant steps in a fixed process, and improves the test efficiency. On the premise of ensuring the test coverage, the test time is obviously shortened, and meanwhile, the detection probability of potential defects is improved; through the closed-loop test of the integrated RL intelligent agent module, the test action can be adjusted in real time according to the state of a single optical module, so that the test process can quickly adapt to the individual difference and process fluctuation of the device, the online quick convergence of the test strategy is realized, and the accuracy and stability of the test are guaranteed; and through online iterative optimization of the RL agent module, new data and new changes in the production process can be continuously learned, so that a test strategy is continuously evolved, and the optimal performance is kept for a long time.

The invention discloses a method of an optical anti-turbulence device for polarization multiplexing spatial optical communication. The mode demultiplexer is connected with the optical fiber; the single-mode optical fiber array is respectively coupled with each spatial intrinsic mode decomposed by the mode demultiplexer; the polarization CBC chip is connected with the other end of the single-mode optical fiber array; the driving control module is connected with the polarization CBC chip; the polarization multiplexing optical communication digital coherent receiver (Rx) is connected with the polarization CBC chip through a single-mode optical fiber; through the arrangement of the polarization CBC chip, the compatibility of a polarization multiplexing technology and a mode multiplexing coherent beam combination technology is realized, the problem of polarization dimension information loss or strong crosstalk caused by the use of a polarization state rotator (PSR) and a polarization maintaining optical fiber in the prior art is solved, modulation information of two orthogonal polarization dimensions is completely reserved, the communication bandwidth is improved, and the communication efficiency is improved. And the communication efficiency is greatly improved.

The invention relates to the technical field of optical wireless communication, in particular to an optical wireless communication device and method based on beam shaping, and the device comprises a beam shaping module which comprises at least one beam shaping lens so as to convert a beam outputted by a point light source into a uniformly distributed linear or planar light field; the optical transceiver module comprises a plurality of optical base stations, the optical base stations are arranged in a redundant mode in the extension direction of the communication scene, each optical base station integrates at least one optical transmitter, an optical detector and a plurality of prisms and is used for transmitting and receiving optical signals, and the coverage range of the single optical base station is expanded through the prisms; and the dynamic demodulation module is connected with the optical detector, and dynamically adjusts the demodulation threshold value of the corresponding bit error rate according to the real-time channel state. Therefore, when the technology is applied to wireless optical communication, the communication performance can be improved, the coverage distance can be increased, the coverage uniformity can be improved, the bit error rate can be reduced, the construction cost can be reduced, and the long-term stable communication requirement of a closed scene can be met.

The invention relates to the technical field of optical communication, in particular to an automobile headlamp communication system and method based on image frame interpolation, comprising a transmitting end and a receiving end, a vehicle-mounted central control system of the transmitting end is used for receiving input to-be-transmitted information, and an ambient light detection module evaluates an external illumination condition in response to the input of the to-be-transmitted information; an image gray value and frame insertion frequency are set based on the illumination intensity, the image coding module codes information to be transmitted based on the set image gray value to generate a projection image frame, and the projection module inserts the projection image frame into a normal illumination frame sequence of a vehicle lamp based on the frame insertion frequency and projects the projection image frame to an external environment; the image acquisition module of the receiving end is used for acquiring a projection image frame, the image decoding module preprocesses the projection image frame and then decodes the projection image frame, and the information to be transmitted is restored and sent to the vehicle-mounted central control system. According to the invention, vehicle lamp communication at a certain distance in a traffic environment can be realized on the premise of ensuring normal vehicle lamp illumination.

The invention belongs to the technical field of optical communication, and relates to an adaptive key pool and real-time key collaborative resource optimization method and device, and the method comprises the steps: generating a key on a time slot of a quantum signal channel between every two adjacent quantum nodes, and storing the key in a quantum key pool; generating a communication path for each service request, and when the service security level of the service request is the highest, generating a real-time key on a time slot of a quantum signal channel between every two adjacent quantum nodes in the communication path; when the service security level of the service request is enhanced, a key is obtained from a quantum key pool between every two adjacent quantum nodes in a communication path of the service request, and when the number of keys in the quantum key pool is smaller than the key demand quantity of the service request, the service security level of the service request is enhanced; a real-time key is generated on a time slot of a quantum signal channel between every two adjacent quantum nodes in a communication path; and when the service security level of the service request is based on the service security level, a key is acquired from a quantum key pool between every two adjacent quantum nodes in a communication path of the service request.

The invention provides a satellite optical communication link switching method and system, electronic equipment and a storage medium, and relates to the technical field of communication, and the method comprises the steps: carrying out the analysis and processing of a first bit error rate and / or first signal intensity of a first satellite-ground link between a first satellite and a first ground gateway station, so as to obtain an average bit error rate and / or average signal intensity; the abnormal condition of the first satellite-ground link can be identified timely and accurately; according to the method, position information of satellites, service information of service data and performance parameters of a plurality of inter-satellite links are obtained, and link weights of the inter-satellite links are calculated based on the information to select a target inter-satellite link, so that an adaptive inter-satellite transmission path can be efficiently determined; and the service data is forwarded from the first satellite to the target satellite through the target inter-satellite link, and the service data is forwarded by means of the target satellite and the corresponding target ground gateway station, so that the continuity of satellite service transmission from space to the ground is ensured, and the service transmission blocking caused by link interruption is avoided.

The invention relates to the technical field of optical communication, in particular to an optical module cooling system which comprises a switch shell, a PCB, a socket, a radiator and a lifter, and the PCB, the socket, the radiator and the lifter are arranged in the switch shell. A cage is arranged in the switch shell; the PCB is arranged at the bottom end of the cage; the socket is arranged in the cage and is connected with the PCB; an opening is formed in the top end of the cage; the lifter is connected with the radiator so as to drive the radiator to vertically pass through the opening; and a heat-conducting silicone grease layer is arranged on the bottom surface of the radiator. The radiator is not in direct contact with the optical module, the heat-conducting silicone grease layer is filled between the radiator and the optical module, the radiator is in hard contact with the shell of the optical module through the heat-conducting silicone grease layer, a gap between abutting faces is effectively eliminated or reduced, air reserved in the gap is reduced, and therefore heat resistance between the radiator and the shell of the optical module is reduced, and the service life of the optical module is prolonged. And the heat exchange efficiency is improved.

The invention discloses an 8 * 8 lithium niobate array optical switch, and belongs to the technical field of integrated photon and optical communication. Comprising twenty switch units of Mach-Zehnder interferometer structures, and each switch unit is provided with a modulation arm composed of an upper bent waveguide and a lower bent waveguide and is provided with a push-pull type loading electrode. The switch units are combined in a multi-stage array mode and are connected through crossed waveguides, and the 8 * 8 array non-blocking optical switch is formed by using twenty switch units. According to the invention, the 2 * 2 optical switch units with small size and high modulation efficiency are designed, the transverse size of a modulation arm is shortened by adopting upper and lower bent waveguides, the driving voltage is reduced by combining a push-pull electrode loading technology, and finally the high-density 8 * 8 array optical switch is constructed by twenty units. By utilizing the electro-optical effect of lithium niobate, through the optimization of a bent waveguide structure and the driving of a push-pull electrode, low-power-consumption and high-speed optical path switching is realized, and a high-integration-level routing solution is provided for a high-speed optical communication system.

The invention provides a four-port single-mode grating filter combined with a semi-symmetric fano resonance structure, and relates to the field of optical communication and optical sensing, and the filter comprises an F-P cavity and two bending coupling waveguides which are symmetrical up and down; the F-P cavity is arranged between the two bent coupling waveguides; the Bragg grating comprises a central waveguide, a conical grating and a Bragg grating; and two small circular holes are formed in each bent coupling waveguide. According to the technical scheme of the invention, two circular small holes are designed in each of the upper and lower bent waveguides to construct a semi-symmetric Fano resonant structure, and the two groups of circular small holes are in central symmetry. By constructing a semi-symmetric Fano resonant structure, the transmission efficiency of the drop end on the four-port single-mode grating filter is improved.

The invention belongs to the related field of optical communication transmission technology, and discloses a telescopic butterfly-shaped optical cable, which comprises a main body sheath, an optical fiber, a flat steel wire and a V-shaped tearing opening, and is characterized in that the whole cross section of the butterfly-shaped optical cable is of a square structure with a certain length-width ratio; the optical fiber is arranged in the main body sheath and is wrapped by a single sleeve or double sleeves; the V-shaped tearing openings are kept symmetrically arranged on the long sides of the square structure, the flat steel wires are kept symmetrically arranged on the corners or the side portions of the square structure, and the flat steel wires are correspondingly used for storing redundant parts of optical fibers in a coil mode while having the function of a reinforcing piece. According to the butterfly-shaped optical cable, on the basis that an existing suspension wire steel wire structure is completely cancelled, the weak problem of the tearing opening part is effectively avoided, it is ensured that the butterfly-shaped optical cable has the needed mechanical strength, and the optical fiber containing space of the butterfly-shaped optical cable is improved; and meanwhile, reliable storage of internal standby optical fibers can be realized, and other functions such as rapid switching can be supported.

The invention relates to the technical field of digital demodulation, in particular to a digital demodulation method suitable for deep ultraviolet light communication, which comprises the following steps of: adopting multiple delay processing with half code element width, and respectively carrying out double extraction processing on a discrete sampling signal which is not subjected to delay processing and a plurality of delay sampling signals to obtain a plurality of delay extraction signals; in this way, the key sampling time in the coverage code element period can be ensured, and a basis is provided for subsequent accurate synchronization; a plurality of delay extraction signals are respectively input into corresponding equalization processing units, a preset local training sequence is loaded to each equalization processing unit to obtain a plurality of equalization filtering signals, and the plurality of equalization filtering signals and the preset local training sequence are respectively subjected to related judgment processing, so that the inter-symbol interference is inhibited, and meanwhile, the equalization processing efficiency is improved. The synchronization signal can be quickly screened out, so that the problem that inter-symbol interference and synchronization are difficult to consider in a traditional demodulation method is solved, and the demodulation efficiency and reliability are remarkably improved.

The invention discloses an OEO amplifier with a high-speed hard switching function and an optical transmission system, and relates to the technical field of optical amplifiers, the OEO amplifier comprises three magneto-optical switches, an optical splitter group, a photoelectric detector group, a real-time comparison circuit, a logic gate control circuit and a driving circuit; the photoelectric detector group collects optical signal power to generate an electric signal; the real-time comparison circuit performs voltage threshold judgment on the electric signal; the logic gate control circuit is connected with the output end of the real-time comparison circuit so as to synchronously control the switching states of the three magneto-optical switches according to a voltage threshold judgment result; the driving circuit is used for driving the magneto-optical switch to synchronously execute a switching action; when the OEO amplifier detects that optical signals in any direction are interrupted, all the magneto-optical switches finish synchronous switching within 100 microseconds, and the end-to-end optical signal switching time difference is smaller than 2 picoseconds. The method is suitable for a single-fiber bidirectional optical communication environment requiring high frequency, high precision and high stability.