238results about "Electromagnetic network arrangements" patented technology

The invention discloses an optical communication system and an optical communication method. An optical communication system includes a first device, an optical splitter, and a plurality of second devices. The first device is used for sending a first optical signal, the first optical signal is respectively transmitted to the plurality of second devices after being shunted by the optical splitter, and the first optical signal carries an analog radio frequency signal. The plurality of second devices are used for sending second optical signals respectively, the plurality of second optical signals are transmitted to the first device after passing through the optical splitter, and each second optical signal carries an analog radio frequency signal. The optical signal for communication between the first device and the second device bears the analog radio frequency signal, and the analog radio frequency signal does not need to be converted into a digital signal, packaged into an optical protocol frame format and then modulated into the optical signal. In this way, communication between the first device and the second device does not involve the optical protocol conversion process of optical protocol frame format encapsulation and de-encapsulation, the service delay of the system is reduced, the system structure is simpler, and power consumption and cost are reduced.

The invention provides a system and method for power auto-regulation in an out-of-band communication based optical transceiver. The system includes an optical transceiver comprising: one or more optical receptacles, each configured to engage with a corresponding one of the one or more optical receptacle mating members; and transceiver circuitry configured to enable communication of optical signals via the one or more optical receptacles. The optical transceiver is configured to: establish an optical connection with a peer optical transceiver; setting a transmit (Tx) optical power used during transmission of the optical signal to the peer-to-peer optical transceiver to a predetermined initial value; and performing a power auto-regulation of transmit (Tx) optical power during optical communication with the peer-to-peer optical transceiver via the optical connection. Based on the technical scheme disclosed by the invention, the Rx damage power related problem can be solved in a manner of overcoming the limitation and / or defects of any conventional technical scheme and not influencing the overall performance and / or quality of optical communication.

The invention discloses a near-field optical communication system and method. The near-field optical communication system comprises a transmitting end and a receiving end. The transmitting end comprises a light transmitting assembly, a signal change-over switch and a transmitting end controller. The receiving end comprises an optical receiving assembly and a receiving end controller. The transmitting end controller controls the signal change-over switch to enable the light transmitting assemblies to transmit light signals respectively, and the receiving end controller controls the signal change-over switch to enable the light receiving assemblies to transmit light signals after the light receiving assemblies receive the light signals transmitted by the light transmitting assemblies. And sending the obtained information corresponding to the optical signal intensity of each optical transmitting component or the information of the optical transmitting component with the highest optical signal intensity to a transmitting end controller, so that the transmitting end controller selects the optical transmitting component which is optimally matched with the receiving end for subsequent optical communication. The near-field optical communication system and the near-field optical communication method can realize optical communication with high bandwidth and low alignment precision requirement in a near field.

This application belongs to the communication field, and discloses a communication method, an apparatus, a system, and a storage medium. The method includes: A first node generates a first signal to be sent to a second node, where a first frequency resource is used for the first signal; the first frequency resource is adjacent to a second frequency resource; the second frequency resource is used for transmitting a signal to be sent to the second node and the signal transmitted on the second frequency resource is different from the first signal, or the second frequency resource is not used for transmitting a signal; and a width of the second frequency resource is greater than or equal to a width of the first frequency resource. The first node sends the first signal. This application can reduce communication costs.

The application provides an optical network communication method and a communication device. The method is applied to an optical fiber network, and the optical fiber network comprises a master device and at least one slave device, and the at least one slave device comprises a first slave device. The master device sends a first message to the first slave device, the first message is a wireless local area network management control interface (WMCI) message, the first message is used for managing or controlling a wireless local area network (WLAN) function of the first slave device, and the first message comprises first indication information, the first indication information is used for indicating a time delay requirement or a priority of the WLAN function corresponding to the first message. Since the first indication information in the first message can indicate the priority or the time delay requirement of the first message, the first slave device can decide whether to process the first message preferentially based on the first indication information, so that the bandwidth occupied by low-priority messages or messages with ordinary time delay requirements can be reduced, and the communication real-time performance of high-priority messages or messages with low time delay requirements can be improved.

Systems and methods for a sparse route computation for determining optical paths with defined optical regenerator locations in an optical network include receiving a request to compute one or more paths from a source node to a destination node with one or more regen nodes in an optical network; utilizing the one or more regen nodes as an inclusion hops list; and performing a Shortest Path First (SPF) computation with the inclusion hops list to find the one or more paths with tentative (tent) paths maintained in a tent list and further utilizing a discourage factor in minimal route diversity to order the tent paths in the tent list based on the inclusion hops list.

The system according to this embodiment aims to automate and efficiently perform optical communication route design. [Solution] The system according to the embodiment comprises a reception unit, a design unit, an evaluation unit, and a provision unit. The reception unit inputs information between connection points. The design unit designs the optimal route based on the information input by the reception unit. The evaluation unit evaluates the route designed by the design unit. The provision unit provides the route information evaluated by the evaluation unit.

This system is directed to an orbital angular momentum generator which can include an AOD; a beam shaping optic assembly; a log-polar optic; a Fourier lens; and, wherein the orbital angular momentum generator is configured to produce pulse shaping according to the application of a quadratic waveform chirp that corresponds to one or more OAM modes. The system can include an ultrashort pulsed laser; a log-spiral transformation assembly; an AOD; an ellipse generator; a λ / 2 plate; and, wherein the optical system is configured to provide for multiple coherent spiral beams with control of amplitude and relative phase. The system can include an ultraviolet orbital angular momentum generator comprising: a femtosecond pulsed laser; a crystal configured to provide a collinear phase-matching; and can provide a UV OAM source for imaging with high resolution and quantum information. The AOD can be replaced with a scanning mirror and configured to add a linear phase gradient.

To provide an optical signal processing device capable of providing a transponder aggregation function which has a small signal loss in a path from an input to an output, and is also provided in a low cost.SOLUTION: A TPA 4 having: a port P of N transponder 41; and M cross-connect ports 48, comprises: K optical switches 42 connected to K ports P of N ports; L optical switches 52 connected to (N-K) optical switches of the N optical switches; M optical confluence directional couplers 43 connected to each optical switch 42 in a mesh like; L optical confluence directional couplers 44 connected with the optical switches 52 in the mesh like; a matrix switch 46 connected to each optical confluence directional coupler 44; and M optical confluence directional couplers 47 connected to each optical confluence directional coupler 43, the matrix switch 46, and each cross-connect port 48.SELECTED DRAWING: Figure 4

The application provides an optical network communication method and a communication device. The method is applied to an optical fiber network, and the optical fiber network comprises a master device and at least one slave device, and the at least one slave device comprises a first slave device. In the method, the master device sends a third message to the first slave device, the third message is a wireless local area network management control interface (WMCI) message, the third message is used for managing or controlling a wireless local area network (WLAN) function of the first slave device, the third message comprises fourth indication information and fifth indication information, the fourth indication information is used for indicating a first characteristic, and the fifth indication information is used for indicating whether the first characteristic of the first slave device is enabled. The first characteristic of the first slave device is flexibly configured by the master device, and therefore, the efficiency of the master device in managing and controlling the first slave device is improved.

The application provides a communication method, device and PON system, which can solve the SN conflict problem in the PON network and improve the performance of the PON network system. The method comprises the following steps: an OLT device receives a first SN from a first ONU device in a first time window, allocates a first ONU identifier for the first ONU device, and then broadcasts and sends first indication information and the first ONU identifier, wherein the first indication information is used for indicating that the OLT device successfully allocates the first ONU identifier for the first ONU device. After that, the OLT device receives a second SN from a second ONU device in a second time window, and the second SN is the same as the first SN. The OLT device determines whether to allocate a second ONU identifier for the second ONU device based on an authentication result of the first ONU device.

An optical transmission system including: a transmission line design unit configured to specify a first transmission mode to be used for communication of a user-side optical communication device in response to a request of connection request data, acquire information regarding a plurality of wavelengths to be used for communication of the user-side optical communication device in a case where the specified first transmission mode does not satisfy the request of connection request data, and notify the acquired information regarding the plurality of wavelengths; a multiple-lane processing unit configured to generate optical signals of a plurality of wavelengths using an optical signal transmitted from the user-side optical communication device or a transmission signal input to the user-side optical communication device on the basis of the information regarding the plurality of wavelengths notified by the transmission line design unit; and a wavelength demultiplexing unit configured to generate a multiplex signal by multiplexing optical signals of a plurality of wavelengths generated by the multiple-lane processing unit and transmit the generated multiplex signal to a communication partner of the user-side optical communication device.

To provide an apparatus for managing a subsea optical communications system.SOLUTION: An apparatus for managing optical subsea communications system includes a plurality of fiber interface modules (FIMs), where each FIM comprises a receive part and a transmit part. The transmit part includes two normally closed switches SW1, SW2, where a first switch of the two normally closed switches is coupled to a line monitoring equipment (LME) TX port, and where a second switch of the two normally closed switches is coupled to a line terminating equipment (LTE) TX port.SELECTED DRAWING: Figure 4A

The invention relates to the technical field of life cycle management, and discloses a base station optical network life cycle management method and system based on deep learning, and the method comprises the steps: collecting manufacturer information, aging parameter definition, a historical temperature sequence and a temperature sensitivity coefficient of each optical fiber segment of a link; a pre-training language model is used for coding the parameter text to generate a semantic alignment matrix, and manufacturer parameter definition deviation is eliminated; on the basis of a thermal activation aging model, the actual operation time is converted into accumulated accelerated aging equivalent time at the reference temperature; mapping the attenuation data to generate a standardized sequence, and fitting and extracting aged fingerprint features; inputting a Weibull model to calculate residual life distribution and an overall failure probability, and carrying out inverse transformation to identify a link life bottleneck section; according to the invention, the first deteriorated weak section in the link can be accurately identified, and a reliable basis is provided for differentiated maintenance decisions.

Embodiments of the present application provide a line card, an optical backplane, and a network device. The line card is applied to a communication device. The communication device comprises: a chassis, comprising a front panel and a rear panel, wherein the front panel and the rear panel are arranged opposite to each other; and an optical backplane arranged in the chassis. The line card comprises: a package substrate, comprising a first optical engine, and a processing chip connected to the first optical engine; and a first light source module cage, which is optically connected to the first optical engine and is not arranged on the side close to the rear panel relative to the package substrate, wherein the first light source module cage is configured to allow an inserted first light source module to provide light to the first optical engine. The optical backplane is arranged on the side close to the rear panel relative to the package substrate.

The present application provides an optical network topology generation method and system, an optical network side device, an electronic device, and a computer readable storage medium, and relates to the technical field of optical communications. The method is applied to an optical network side device and includes: sending optical detection signals of different wavelengths to an optical path in an optical distribution network (ODN), where the ODN is communicatively connected to at least one optical network termination (ONT); obtaining feedback information returned via the optical path, where the feedback information is information for determining a connection relationship of preset splitters in the ODN; and generating an optical network topology according to the feedback information.

The invention relates to a method (100) for configuring a mesh topology Ethernet optical network connecting a plurality of devices and switches. Each switch includes at least one transceiver. Each transceiver has a transmitting section and a receiving section. Each transceiver section is associated with a virtual port. The method (100) includes an initialization (101), a network mapping (103) including the identification of possible links enabling communication between two devices, a possible link being a sequence of virtual ports enabling communication. The method (100) then includes a definition (104) of a network configuration including selected links, a deployment (105) of the network configuration including the disabling of virtual ports not used by the selected links, and a power-off (106) of the transceiver sections equipping each disabled virtual port.Figure for the abbreviation: [Fig. 1].

The invention relates to the technical field of optical fiber link intelligent scheduling, in particular to a computing power topology generation method, application method and generation system based on an optical fiber link, and the generation method comprises the steps: obtaining the port connection information of an optical switch in an optical fiber network, and constructing an optical switch topology network according to the port connection information; obtaining computing power connection demand information; searching an optical switch link path in the optical switch topology network according to the computing power connection demand information and a preset computing power node-optical switch node mapping relation; obtaining optical switch routing configuration corresponding to the optical switch link path; and constructing the computing power topology network according to the computing power connection demand information and the corresponding optical switch routing configuration. Compared with the prior art, the complex optical fiber network is converted into the simple and abstract computing power topology network, and the optical switch connection path in the optical fiber network is utilized to represent the connection relationship in the computing power topology network, so that the optical fiber network is effectively utilized to construct the computing power topology graph.

To provide an undersea optical fiber cable architecture that facilitates incorporation of additional cables (i.e., cables added after initial installation) using the same terrestrial landing site.SOLUTION: The undersea optical fiber cable architecture 10 includes a beach manhole (BMH) installed at a ground location, a ground station connected to the BMH by a terrestrial optical fiber cable, a first landing cable extending from the BMH to territorial waters adjacent to the ground location and connected to a first enhanced branching unit (EBU) 22 located in the territorial waters, a second landing cable extending from the BMH to territorial waters and connected to a second EBU24 located in the territorial waters, a recovery path cable 26 connecting the first EBU to the second EBU, a first trunk cable 28 extending from the first EBU to an international water area, and a second trunk cable 30 extending from the second EBU to the international water area.SELECTED DRAWING: Figure 1

It is an object of the present disclosure to appropriately perform quantum key distribution through an optical wavelength division multiplexing link. There is provided a communication apparatus that communicates an optical signal based on an electrical signal obtained by multiplexing a first control signal addressed to a second optical communication apparatus from a first optical communication apparatus and a control signal for reception signal processing from a first quantum key distribution apparatus to a second quantum key distribution apparatus.

To monitor the operating state of an optical switch without deteriorating the quality of an optical signal in an integrated optical circuit.SOLUTION: The optical switch circuit 101 includes an optical switch 21 in which element switches 11 capable of switching between a cross state and a bar state between two input terminals and two output terminals are arranged in a matrix structure of N rows and N columns, and a monitoring unit 61 that monitors an optical connection state between the input ports and the output ports, with one of the two input terminals of each element switch in the first column as an input port A and the other as an input-side dummy port A {circumflex over ()}, and one of the two output terminals of each element switch in the N-th column as an output port B and the other as an output-side dummy port B {circumflex over ()}. The monitoring part monitors the optical connection state on the basis of the position on the matrix structure of the element switch where the detection light input from the detection light source 55 to the input side dummy port or the output side dummy port is detected.SELECTED DRAWING: Figure 13

To provide a communication device, communication system, program, and communication method that can support both current generation and next generation communications, while maintaining the configuration of a network that converts optical signals into electrical signals, by also incorporating the configuration of an all-optical network.SOLUTION: An access optical node 1 includes an optical signal processing unit 10 that transmits a received optical signal to a destination node 100. The optical signal processing unit 10 has a route switching unit 13 that, based on the wavelength of the received optical signal, switches between a first route R1, which transmits the received optical signal to the destination node 100 as the optical signal is, and a second route R2, which transmits the received optical signal to an electrical signal processing unit 20, and transmits an optical signal after being processed by the electrical signal processing unit 20 to the destination node 100.SELECTED DRAWING: Figure 2

The invention provides an optical network communication method and a communication device, the method is applied to an optical fiber network, the optical fiber network comprises a master device and at least one slave device, and the at least one slave device comprises a first slave device. Wherein the first message sent by the master device to the first slave device carries the first indication information, and the first indication information indicates the operation type of the first message, so that the first slave device can quickly decide whether to generate the response message of the first message based on the first indication information; therefore, the communication efficiency between the master device and the slave device is improved, and the management and control efficiency of the master device on the slave device is improved.

The present disclosure is to perform quantum communication by using a quantum-entangled state in a communication system. An operation method of a first device may comprise the steps of: acquiring system information; performing an initial access procedure on the basis of the system information; receiving information regarding a network configuration from a control device; receiving information regarding measurement from the control device; reporting a measurement result to the control device; and receiving, from the control device, information regarding a path determined on the basis of the measurement result.

An optical transmission device includes a first processing circuit that deletes, from a plurality of packets, a specific data which does not affect normal transmission and reception of an optical signal obtained by converting a first transmission frame before mapping the plurality of packets into the first transmission frame, a second processing circuit that maps the plurality of packets into the first transmission frame without using a multiplex hierarchy after removing a padding data stored between the plurality of packets and pre-padding an empty data area by a removal of the padding data with the plurality of packets in order, and a third processing circuit that converts the first transmission frame in which the plurality of packets are mapped into the optical signal and transmits the optical signal.

This application provides an optical network communication method and a communication device. The method is applied to an optical fiber network, which includes a master device and at least one slave device, wherein the at least one slave device includes a first slave device. During the initialization phase, after receiving the authentication and encryption capabilities of the slave device, the master device can indicate a specific authentication and encryption mode (e.g., a first authentication and encryption mode) to the slave device. This eliminates the need for the master device to configure security-related parameters such as the authentication and encryption mode for the slave device in subsequent processes (e.g., roaming parameter configuration processes), thereby improving configuration efficiency and saving configuration overhead.

An embodiment of the present application provides an optical signal transmission device and an optical transmission system. The optical signal transmission device includes a first fiber collimator configured to input a first combined optical signal; a first beam splitter configured to split the first combined optical signal to obtain an optical signal of a first wavelength and an optical signal of a second wavelength, further configured to transmit the optical signal of the first wavelength to a first filter unit and further configured to transmit the optical signal of the second wavelength to a third fiber collimator; the first filter unit configured to transmit the optical signal of the first wavelength to the third fiber collimator; a die-2 fiber collimator configured to input an optical signal of the third wavelength; a second filter unit configured to transmit the optical signal of the third wavelength to the third fiber collimator; and a third fiber collimator configured to output a second combined optical signal. The second combined optical signal is an optical signal obtained through combining the optical signal of the first wavelength, the optical signal of the second wavelength, and the optical signal of the third wavelength.

An optical communication system includes a sending device, an optical cross-connect (OXC) device, and a first receiving device. The sending device is configured to send a modulated first service optical signal to the OXC device. The OXC device is configured to receive the modulated first service optical signal through a first input port, and divide the modulated first service optical signal into N1 first optical signals based on a wavelength. The OXC device is configured to send M1 first optical signals to the first receiving device through M1 first output ports.

The invention belongs to the field of laser communication, and particularly relates to a laser communication link establishment method and device based on microwave chain direction finding guidance and a storage medium. The objective of the invention is to solve the problem of low positioning precision of existing laser communication link establishment. The invention provides a laser communication link establishment method based on microwave link direction finding guidance. The method comprises the following steps: carrying out snakelike scanning to receive a microwave signal; when the microwave signal is detected, coarse alignment processing is carried out, and coarse alignment is completed; fine alignment processing is carried out after the coarse alignment processing, and a laser communication link is established between the first laser communication terminal and the second laser communication terminal after the fine alignment processing. Through microwave direction finding guiding positioning, the technical problems of long laser communication link establishment time and low success probability at present are solved, the original initial uncertain angle range is reduced from + / -0.5 degrees to + / -0.1 degrees, the scanning capture time is shortened by more than tens of times, and the method has important significance for laser communication link establishment between high-speed mobile platforms.