426results about "Electromagnetic network arrangements" patented technology

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 in the initialization phase, after receiving the authentication encryption capability of the slave device, the master device can indicate a determined authentication encryption mode (e.g., a first authentication encryption mode) to the slave device, so that the authentication encryption capability of the slave device is enhanced in a subsequent process (e.g., a roaming parameter configuration process). The master device does not need to configure security-related parameters such as an authentication encryption mode for the slave device, so that the configuration efficiency is improved, and the configuration overhead is saved.

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 in the initialization phase, after receiving the authentication encryption capability of the slave device, the master device can indicate a determined authentication encryption mode (e.g., a first authentication encryption mode) to the slave device, so that the authentication encryption capability of the slave device is enhanced in a subsequent process (e.g., a roaming parameter configuration process). The master device does not need to configure security-related parameters such as an authentication encryption mode for the slave device, so that the configuration efficiency is improved, and the configuration overhead is saved.

A WXC device includes: input ports; output ports; a wavelength conversion unit including input-side WSSes, wavelength converters, and output-side WSSes; and a controller. The input-side WSSes each output an optical signal input from a corresponding one of the input ports to a selected one of the wavelength converters. The wavelength converters each convert a wavelength band of the optical signal input from each of the input-side WSSes into another wavelength band and output the converted optical signal to a respective one of the output-side WSSes. The output-side WSSes each perform route switching on the optical signal input from the respective one of the wavelength converters toward a selected one of the output ports. The controller manages, for each of the wavelength converters, whether the wavelength converter is unused and controls the input-side WSSes each to output the input optical signal to one of the unused wavelength converters.

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 relates to a chip and a module for optical interconnection, and a device and a system using the optical interconnection module. The chip comprises photon integrated circuit sub-modules, each sub-module comprises a plurality of first optical switching units, and each first optical switching unit is configured to selectively output an optical signal input by a first optical input port of the first optical switching unit through any optical output port; an on-chip optical switch which is optically connected with the first optical switching unit and is configured to select an output port to output an optical signal input by any one optical input port of the on-chip optical switch; a plurality of modulators optically connected to the first optical switching unit; a plurality of detectors, at least a portion of which is optically connected to the on-chip optical switch; a plurality of first optical couplers configured to optically connect the first optical switching unit with a first external optical fiber array; and a second optical coupler in optical connection with at least a portion of the detector and configured to transmit the optical signal from the second external optical fiber array to the portion of the detector.

The invention provides an optical network communication method and device, and the method comprises the steps: a first slave device can receive a rate amplification factor from a main device, and the rate amplification factor is an adjustment coefficient of a first rate (i.e., the attribute value of a CIR attribute / PIR attribute); the first slave device determines a second rate (i.e., a valid CIR / PIR of the first slave device) by means of the rate amplification factor and the first rate. Therefore, even if the value of the first rate is limited, the effective CIR / PIR of the first slave device can be adjusted through the rate amplification factor. In other words, on the basis of not changing the existing attributes, the value of the CIR / PIR used by the first slave device during working is expanded. And the CIR / PIR configuration problem of a 50G PON and a future higher-rate PON is solved.

An optical communication apparatus includes an optical switch, a wavelength management control unit, and an optical switch control unit. The optical switch is connected to a plurality of transmission lines and outputs an optical signal input from one of the transmission lines to another of the transmission lines. The wavelength management control unit assigns a wavelength to a subscriber terminal according to a communication destination. The optical switch control unit controls the optical switch such that it outputs an optical signal transmitted from the subscriber terminal, to which a wavelength has been assigned, to a transmission line corresponding to its forwarding destination on a path to the communication destination.

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 present invention relates to a computing system, comprising a plurality of computing devices. Each of the computing devices is configured with a plurality of computing modules and a plurality of optical interconnect expansion cards, and each of the optical interconnect expansion cards is provided with an on-chip optical switch and at least one first optical switching unit. The optical interconnect expansion cards of the plurality of computing devices communicate by means of optical fiber connections; moreover, by means of controlling the first optical switching units and / or the on-chip optical switches, a first part of the plurality of computing devices forms a first super node, with the topology of a communication link of the first super node comprising a two-dimensional torus topology. The two-dimensional torus topology may be configured to comprise first ring topologies, where the computing devices in the first part form a one-dimensional torus in a first direction; at least two first ring topologies are arranged in a second direction; and at least some of the computing devices in the at least two first ring topologies form second ring topologies with a one-dimensional torus in the second direction, where the second direction intersects the first direction.

The present invention relates to a computing system, comprising a plurality of computing devices. Each computing device is configured with a plurality of computing modules and a plurality of optical interconnect expansion cards, and each optical interconnect expansion card is provided with an on-chip optical switch and at least one first optical switching unit. The optical interconnect expansion cards of the plurality of computing devices communicate by means of optical fiber connections. At least one computing device among the plurality of computing devices serves as a backup device, and the remaining computing devices are working devices that operate normally. When one or more working devices among the plurality of working devices fail, the connection topology of the plurality of computing devices is reconstructed by controlling the first optical switching units and / or the on-chip optical switches on the optical interconnect expansion cards of the plurality of computing devices, so that the backup devices as many as the failed working devices become the working devices that operate normally.

A method for routing in a quantum network is provided. The method may include receiving parameters including a fidelity with coherence decay time and an entanglement generation rate for each quantum node in a mesh quantum network by a controller, the controller being configured to communicate with each quantum node of a plurality of quantum nodes in the mesh quantum network. Each quantum node includes a quantum memory and a processor. The method may also include analyzing the fidelity with coherence decay time and the entanglement generation rate to yield a determination of a path fidelity with a path coherence decay time and a path entanglement generation rate between at least one pair of quantum nodes. The method may further include, based on the determination, selecting a quantum communication path from a source node to a destination node.

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 optical fiber connectivity management system includes a non-transitory computer-readable medium configured to store instructions and a processor coupled to the non-transitory computer-readable medium. The processor is configured to execute instructions for receiving optical fiber data related to a plurality of target areas for optical fiber connections. The processor is further configured to execute instructions for preparing a plurality of optical fiber connectivity requests corresponding to the plurality of target areas for optical fiber connections and for generating an optical fiber application based on the plurality of optical fiber connectivity requests. The processor is further configured to execute instructions for directing a transmitter to transmit the optical fiber application to an optical fiber operator and for receiving a response from the optical fiber operator, the response indicating whether the plurality of optical fiber connectivity requests are approved for optical fiber connectivity establishment.

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.

Provided is a gateway device provided between a control device that controls at least one first user terminal that performs single-core bidirectional transmission and at least one second user terminal that performs two-core transmission. The gateway device comprises: a plurality of main signal control signal multiplexing / demultiplexing units that demultiplex an input optical signal into at least main signal light and control signal light; and a plurality of control signal transceivers that transmit and receive control signal light between the at least one user terminal and the at least one second user terminal via at least one of the plurality of main signal control signal multiplexing / demultiplexing units. Each of the plurality of control signal transceivers includes an output unit that outputs uplink control signal light transmitted from the at least one first user terminal or the at least one second user terminal to an optical reception unit.　

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.

A gateway device is disclosed for use with a WAN, wireless WAN, a LAN, a client device and a wireless device. The client device includes: a memory; a primary communication system; a wireless communication system; and a processor configured to execute instructions stored on the memory to cause the network device to: instruct the primary communication system to transpond the client device data between the client device and the WAN and to transpond the wireless device data between the wireless device and the WAN; detect a loss of connection with the WAN; and instruct the wireless communication system to transpond the client device data between the client device and the WAN via the wireless device and the wireless WAN.

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.

[Problem] To control according to the requirements of various communication services and transmit information via an appropriate communication network. [Solution] The present invention comprises: a line measurement unit 11 which measures line measurement information when performing line control based on line route information and line parameters for transmitting and receiving communication service data to and from an optical space communication device 2 which performs optical space communication via one or a plurality of lines mounted on a non-terrestrial node group and an optical ground station, on the basis of a service request and line measurement information on a plurality of lines, received from the non-terrestrial node group; a position calculation unit 13 which calculates position information on the non-terrestrial node group; a line parameter calculation unit 10 which calculates line route information and line parameters on the basis of the position information, a service request, and line measurement information; a line control unit 12 which controls a line on the basis of the line route information and the line parameters, for the optical space communication device 2; and a line information communication unit 14 which communicates the service request, the line measurement information, the line route information, and the line parameters with the non-terrestrial node group.

Network elements and methods of use are described herein, including a network element comprising a passive waveguide, one or more modulator, and one or more RF antenna. The one or more modulator is configured to generate first and second channel signals. The first channel signal has first data encoded in a first modulation format. The second channel signal has second data encoded in a second modulation format. The first and second channel signals have first and second carrier frequencies, respectively. The first and second carrier frequencies are in a range between 300 Gigahertz (GHz) and 10 Terahertz (THz). The one or more RF antenna is configured to receive the first and second channel signals and transmit the first and second channel signals into the passive waveguide with first and second polarizations, respectively. The first polarization is different from the second polarization.

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 utility model relates to a network card based on WX1820AL. The WX1820AL-based network card comprises a CPCIE (Compact Peripheral Component Interconnect Express) * 8 connector, two WX1820AL chips, four optical modules and a power supply module, the CPCIE * 8 connector is electrically connected with the two WX1820AL chips, on one hand, the CPCIE * 8 connector receives PCIE signals from equipment outside the network card, and on the other hand, the CPCIE * 8 connector sends the received PCIE signals to the corresponding WX1820AL chips; the four optical modules are averagely divided into two groups, and the two optical modules in each group are electrically connected to the same corresponding WX1820AL chip; each WX1820AL chip is used for converting the received PCIE signal into two SFP + signals and respectively sending the two SFP + signals to the corresponding group of two optical modules; and the power supply module is electrically connected with the two WX1820AL chips to supply power. The utility model designs a 10-gigabit network card integrated with four optical modules on the basis of a WX1820AL chip.

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