796results about "Electromagnetic transceivers" patented technology

An adaptive modular multimodal communication and computing panel includes a multilayer stack with a protective layer transmissive in selected bands, a reconfigurable communication layer operable in phased array, reflectarray, hybrid phased reflector, free space optical, or quantum modes, and electronics with heterogeneous processors. A multi scale interconnect and input and output fabric couples electrical, radio frequency, guided optical, and free space optical domains through interfaces including electro optic transduction and RF or baseband conversion. The fabric may implement programmable true time delay, resonators, and comb referenced timing. A management system coordinates beamforming, sensing, routing, calibration, workload placement, and security. Panels tessellate and connect by electrical, radio frequency, and fiber optic interfaces, supporting hot swappable modules, blind mate connectors, robotic servicing, and anti tamper features. Power and thermal subsystems harvest, store, regulate, and dissipate energy. The architecture scales from chip level modules to vehicle, airborne, maritime, orbital, and deployable systems.

The invention discloses an on-chip optical interconnection and switching chip and an application system thereof. Wherein the on-chip optical interconnection and exchange chip is integrated by a power divider, a bidirectional optical transceiver unit and an optical switch unit; the application system of the on-chip optical interconnection and switching chip comprises a multi-wavelength light source used for generating multi-wavelength optical carrier signals, a transceiving unit control and clock module used for bidirectional transceiving unit feedback / amplifier control and clock synchronization, and an optical switching control module used for switching an optical switching unit switching link. The chips and the modules are used for realizing optical interconnection and optical switching of the special electrical computing chip ASIC. According to the invention, bidirectional optical interconnection and exchange of special computing electric chips such as a CPU, a GPU, a DPU and the like can be realized by utilizing an on-chip optical interconnection and exchange technology, the interconnection rate is high, the exchange switching time is short, computing power cluster networking oriented to artificial intelligence application can be supported, and the application prospect is good.

The invention relates to a coarse-fine integrated pointing mechanism for optical communication, and belongs to the field of optical communication equipment. The problems that in the prior art, a coarse pointing mechanism and a fine pointing mechanism are separated, so that the size is large, and cooperative work efficiency is low are mainly solved. The technical scheme is characterized in that the coarse pointing function and the fine pointing function are integrated into a single compact structure, large-range coarse adjustment around an azimuth axis y1 is achieved through a rotary table on a base, and high-precision fine adjustment around a pitch axis x2 and an azimuth axis y2 is achieved through a reflector supporting frame and a reflector on a mounting piece; the first motor, the second motor and the third motor respectively drive; full-state sensing is performed through a multi-axis angle sensor, a light beam position detector and a temperature monitoring module; and the controller performs real-time thermal error feedforward compensation on the driving instruction of the fine pointing motor according to the temperature monitoring data and a pre-stored thermal deformation compensation model. The mechanism is mainly used in a free space optical communication system, and realizes rapid capture, high-precision alignment and stable tracking of light beams.

Conventional high performance computer connections are electron-based systems, which require the memory packages to be as close as mechanically possible to the computation engine. Low power and high bandwidth communication, e.g. photonic, links can drastically change the architecture of high-performance computers by eliminating the bottlenecks in communication and augment existing memory systems to allow them to be both high capacity and high bandwidth simultaneously. A computer system comprises: a plurality of memory aggregation devices configured to retrieve data from and store data in a plurality of random access memory modules forming a unified contiguous memory address space disaggregated from a processing unit; a plurality of computational devices configured for simultaneously launching a plurality of data signals including memory read and / or write requests for the data to the plurality of memory aggregation devices; and a plurality of communication links coupling each of the plurality of memory aggregation devices to each of the plurality of computational devices for transferring the data therebetween.

An electro-optical integrated circuit comprising an optical transmitter and an optical receiver is disclosed in which a monolithically integrated electro-absorption modulated laser (EML) can operate bi-directionally in both transmitter and receiver modes. Vertically stacked waveguides for lasers and electro-absorption modulators (EAMs) are provided. The laser and the EAM are optically coupled through a transverse conical vertical optical coupler. The EML includes monolithically integrated electronic circuitry, such as drivers and control electronics for driving the laser as the EML and the EAM in the transmitter mode. The control circuit includes a transimpedance amplifier (TIA). The EAM has a first portion and a second portion that may be independently biased. In receiver mode, the laser current is reduced near a threshold, a first portion of the EAM is biased to absorb residual laser light, while a second portion of the EAM provides photocurrent to the TIA as a photodiode receiver.

The invention relates to the technical field of free space optical communication, and discloses a wireless optical communication device which comprises a transmitting end and a receiving end. The transmitting end comprises an information source generation unit, a coding unit, a modulation unit, a driving unit, a light source unit and a transmitting optical assembly; the receiving end comprises a receiving optical assembly, a CCD camera, a signal processing unit, a demodulation unit and a decoding unit; in actual use, wireless communication is carried out through the optical medium, the communication medium is safe, and the problems of active electromagnetic silence and passive electromagnetic suppression do not need to be worried about; the coverage range of visible light is wide, the communication range is wide, and deployment is convenient; in addition, communication is carried out through the CCD camera, so that the original CCD camera can be replaced in some scenes where the CCD camera is installed, and image shooting and wireless optical communication can be realized at the same time.

The invention discloses a chirp spread spectrum photon terahertz communication perception integrated system. The system comprises a coherent light source module used for generating two beams of coherent single-frequency optical carrier signals; the signal modulation module is used for generating a baseband chirp spread spectrum communication sensing integrated signal and modulating the signal to one beam to form a carrier signal; the integrated signal transmitting module is used for taking the other beam of single-frequency optical carrier signal as an optical local oscillator signal, and after the optical local oscillator signal is coupled with the carrier signal, a terahertz communication sensing integrated signal is generated and radiated through optical down-conversion; the communication receiving module is used for performing frequency conversion and demodulation on the received terahertz communication sensing integrated signal and recovering communication information in the signal; and the radar receiving module is used for performing de-chirp and target information estimation on the received terahertz communication sensing integrated signal. According to the system, the advantages of a photon terahertz architecture are fully exerted, and an ultra-wideband chirp spread spectrum integrated signal is generated, so that a communication sensing integrated system with high spread spectrum gain and high energy efficiency is realized.

An optical transmission apparatus includes an optical transmitter that generates an optical signal in an uplink direction by modulating output light of a laser that outputs light of a first frequency with a subcarrier on which transmission data is superimposed, a heterodyne detection unit that receives an optical signal in a downlink direction by heterodyne detection, a control unit that calculates a first intermediate frequency based on the frequency of the downlink signal received by the heterodyne detection and the first frequency of the laser, and controls the first frequency of the laser when there is a difference between the calculated first intermediate frequency and a reference second intermediate frequency by a threshold or more.

The invention belongs to the technical field of optical modules, and particularly relates to a CPO module structure which comprises an installation shell, a switching chip, an optical engine, a light source system and an auxiliary monitoring system, the switching chip and the optical engine are installed on a supporting substrate in the installation shell, an optical fiber coupling interface is arranged on the outer side of the installation shell, and the optical fiber coupling interface is connected with the optical source system. The optical fiber link is used for connecting the optical engine and external computer equipment; according to the CPO module structure, related data such as power management, temperature management and link connection signal stable state of the CPO module structure in the use process are monitored in real time through the configured auxiliary monitoring module, and the data are collected through optical power, temperature, current sensors and the like; when abnormal data occur in the monitoring process, troubleshooting and positioning and automatic maintenance and troubleshooting can be rapidly carried out, the frequency of disassembly, maintenance and repair is reduced, and the use experience is improved.

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 disclosure is directed to a dual laser transceiver system. The dual laser transceiver system may comprise a dual laser, with the dual laser further comprising a first laser chip and a second laser chip, a polarization rotator and a polarization combining beam splitter. The dual laser may be coupled to a photonic integrated circuit that may comprise a polarization rotator and splitter operable to general a local oscillator and a modulator signal.

An intelligent (self-learning) sensor-aware and / or context-aware subsystem comprising (i) a System-on-a-Chip (SoC), (ii) a radio transceiver, (iii) a microphone, (iv) a voice processing module, (v) a (bio-inspired) neuromorphic event camera or a hyperspectral camera, (vi) a digital personal assistant (DPA), (vii) a first set of computer implemental instructions in artificial neural networks (ANN) (which may include a transformer model / diffusion model or Poisson flow generative model++ (PFGM++)), (viii) a second set of computer implementable instructions to analyze and interpret contextual data and (ix) an autonomous artificial intelligence (AI) agent is disclosed.

The invention provides a laser communication system for an unmanned aerial vehicle platform, and the system comprises a navigator which is disposed at the upper part of the unmanned aerial vehicle platform and is used for obtaining the position of the unmanned aerial vehicle platform; the sensing module is arranged on the upper portion of the unmanned aerial vehicle platform and used for obtaining the posture of the unmanned aerial vehicle platform; the control module is used for acquiring an aiming angle currently required by the laser communication terminal based on the self position and the self attitude of the unmanned aerial vehicle, and controlling the unmanned aerial vehicle platform to execute a flight instruction according to the aiming angle; the laser communication terminal is controlled by the control module to execute the scanning instruction, captures and tracks an optical signal according to scanning, and receives and transmits the optical signal to perform laser communication; the invention further provides a working method of the laser communication system for the unmanned aerial vehicle platform. The unmanned aerial vehicle attitude adjustment is used for replacing a two-dimensional rotary table of an original laser communication terminal, composite control over the unmanned aerial vehicle laser communication terminal is achieved, and the weight and power consumption of the unmanned aerial vehicle laser communication terminal are effectively reduced.

Scalable multi-band wavelength division multiplexing (WDM) transceiver architectures suitable for high-bandwidth optical Compute interconnects (OCI) between computing resources. The WDM wavelength range is divided into two or more color / wavelength bands. Each band of WDM optical signals may be coupled through separate semiconductor optical amplifiers (SOAs) that are tuned to the different bands. The bands may be conveyed through an optical MUX / DeMUX for transmission through an optical fiber. The optical MUX / DeMUX may comprise a band MUX / DeMUX or a polarization MUX / DeMUX.

An optical transceiver module comprises a boss structure, an optical fiber and a photonic integrated circuit chip. The optical fiber has a transmit-receive port facing the boss structure, and is used for receiving the first optical signal and outputting a second optical signal. The photonic integrated circuit chip is located on the vertical surface of the boss structure, is coupled to the optical fiber, and is used for outputting a first optical signal and receiving a second optical signal. The photonic integrated circuit chip has a side surface facing the transmit-receive port of the optical fiber. The photonic integrated circuit chip comprises a laser emitter, an edge coupler and a first light sensor. The laser transmitter is used for generating a first optical signal. The edge coupler is adjacent to the side surface and is used for coupling the first optical signal to the optical fiber and receiving the second optical signal from the optical fiber. The first light sensor is used for receiving at least one part of the second light signal. While bidirectional signal transmission is realized, the loss of optical signals in the coupling process is reduced, and the efficiency and performance of the system are improved.

A regenerative relay transponder includes: an optical receiving unit that receives an optical signal from a transmitting device as a reception optical signal and converts the reception optical signal into an electrical signal; an electrical-signal processing unit that executes predetermined processing on the electrical signal; an optical transmitting unit that generates a transmission optical signal by converting the electrical signal subjected to the predetermined processing into an optical signal and transmits the transmission optical signal; and a monitoring unit that monitors the predetermined processing by the electrical-signal processing unit, wherein the monitoring unit accumulates in a storage unit monitoring data, which indicates the result of the monitoring, over a predetermined period and causes a communication unit to transmit the monitoring data accumulated over the predetermined period as transmission data to the transmitting device.

The utility model relates to the technical field of optical communication, in particular to a spectrum detector and optical communication equipment. The spectrum detector comprises a double-fiber collimator used for inputting a detection light signal; the beam splitter prism is positioned on the light emitting side of the double-fiber collimator, and the light incident surface of the beam splitter prism is over against the light emitting side of the double-fiber collimator; the fixed spectroscope is positioned on one side, far away from the double-fiber collimator, of the beam splitter prism; the movable spectroscope is positioned on the reflected light emergent side of the beam splitter prism and can be close to or far away from the beam splitter prism along the light emergent direction of the beam splitter prism; the first photoelectric detector is located on the side, away from the movable spectroscope, of the beam splitter prism; the second photoelectric detector is located on the side, away from the beam splitter prism, of the fixed beam splitter. The volume of the spectrum detector can be effectively reduced.

The application relates to an optical signal transmission device. The optical signal transmission device comprises an optical emission module, an optical fiber connection module and an optical receiving module; the optical emission module is integrated on a silicon optical chip; the optical emission module comprises a modulator and a plurality of lasers; the modulator couples received electrical signals and optical signals emitted by the lasers; the modulated optical signals are sent to the optical fiber connection module; the optical fiber connection module sends the modulated optical signals to the optical receiving module; and the optical receiving module outputs to-be-recovered electrical signals based on the modulated optical signals. The optical signal transmission device can save chip manufacturing costs, realize high-bandwidth transmission, and balance transmission performance and costs.

An optical transceiver is disclosed that implements smooth high frequency connection between a DSP and an optical module. The optical module may include an optical receiver module and an optical modulator module. The optical transceiver may include a single optical module in which functions of both the optical receiver and the optical modulator are integrated. The high frequency connection is implemented by a flexible circuit board (FPC), and the FPC electrically connects between a PAD on the upper surface of a DSP circuit board and a PAD of a package of the optical module. A connection PAD on one surface of the FPC is connected to the DSP circuit board side, and a connection PAD on the other surface is connected to the optical module side. A DSP chip may be mounted on the DSP circuit board, and the entire DSP may be covered with a lid except for a region of the DSP circuit board connected to the FPC.

Device topologies for monolithic electro-photonic integrated circuits comprising optical transmitters and receivers are disclosed, wherein each transmitter comprises a first electro-absorption modulator (EAM) waveguide and EAM driver electronics and each receiver comprises a waveguide photodiode, which may be a second EAM waveguide, and a transimpedance amplifier (TIA); and an optical input port for coupling an external laser to each of the transmitters, or an on-chip laser. Monolithic integration of photonics and electronics on a single chip with compact form factor provides reduced interconnect path lengths between the EAMs and the electronics compared to discrete electronics. Tx optical output ports and Rx optical input ports may be interleaved, or banked, along a first (beachfront) edge of the chip with a port-to-port spacing of ≤350μm. The epitaxial layer structure may be fabricated from InP-based materials providing electronics layers comprising InP HBTs, and overlying photonics layers providing first and second EAM waveguides.

To provide an optical module with improved heat dissipation performance.SOLUTION: This embodiment discloses an optical module including a substrate 210, an optical element 320 arranged on the substrate, for converting an electrical signal into an optical signal or converting an optical signal into an electrical signal, an electronic element 310 for driving the optical element, an optical fiber support portion for fixing an optical fiber 341 arranged at a distance from the optical element, an optical wire 330 for optically connecting the optical element and an end of the optical fiber, a container CA for accommodating the optical element, the electronic element, and the optical fiber and being isolated from the outside, and cooling water CW filled in the container. The electronic element, the optical element, and the optical wire are in contact with the cooling water. The embodiment also discloses an optical communication system including the optical module.SELECTED DRAWING: Figure 7

A novel exemplary system uses a laser beam generated by a transmitter unit at a base station to detect, communicate with, and control devices, typically battery-operated, installed in public places. The interaction of the laser beam with the device uses a laser detector module in the device selected to emit a fluorescent signal upon laser beam impingement. A fluorescent detector is installed at the base station to detect incoherent fluorescent light emitted by the device when the laser impinges on the device. A wireless data link may implement the exchange of information and commands between the base station and the device, which may be required following explicit detection of fluorescent emission from the device. The system may use a laser beam in the short-wave infrared (SWIR) region. The detector may provide power to the device for its operation and / or to maintain the charge of an installed battery.

The application relates to the field of optical communication technology, and provides a four-level modulation receiving device and method based on double-polarization double-binary superposition, which comprises a transmitting module, a transmission link and a receiving module; the transmitting module is used for outputting a first binary baseband signal, outputting a first three-level double-binary electrical signal, outputting a second binary baseband signal, outputting a second three-level double-binary electrical signal, performing polarization orthogonal superposition on the first three-level double-binary electrical signal and the second three-level double-binary electrical signal, and outputting one superimposed optical signal; the transmission link is used for transmitting the one superimposed optical signal; and the receiving module is used for receiving the one superimposed optical signal and restoring the one superimposed optical signal into the first binary baseband signal and the second binary baseband signal. The application realizes effective unification of high dispersion tolerance and high spectral efficiency by superimposing two double-binary signals on orthogonal polarization states.

The invention discloses a receiving optical module, a transmitting optical module and a receiving and transmitting optical module, which are used for reducing loss, improving gain and reducing noise. In the receiving optical module, impedance matching is carried out through the first step transformation plane transmission line or the first lumped element network, impedance matching can be realized by adopting a capacitor and an inductor instead of adopting a resistor for impedance matching, the loss in the radio frequency signal transmission process can be reduced, the gain is further improved, and the noise is reduced. In the transmitting optical module, impedance matching is carried out through a second step transformation plane transmission line or a second lumped element network, impedance matching can be realized by adopting a capacitor and an inductor instead of adopting a resistor for impedance matching, the loss in the radio frequency signal transmission process can be reduced, the gain is further improved, and the noise is reduced.

An optical module provided by the present disclosure comprises a circuit board, an optical receiver chip, a TIA chip, a signal processing chip, and an MCU. The signal processing chip comprises a channel configuration register. The MCU comprises a control pin, the control pin being electrically connected to the signal processing chip. When the MCU detects for the first time that a clock signal offset recovered by the signal processing chip is lower than a preset threshold during a power-on process of the optical module, the MCU writes a first register value into the channel configuration register by means of the control pin, so as to disable the signal processing chip receiving a photovoltage signal output by the TIA chip. After a preset period of time, a second register value is written into the channel configuration register by means of the control pin, so as to start the signal processing chip receiving the photovoltage signal output by the TIA chip. When the signal processing chip is locked for the first time, the MCU actively intervenes so as to forcibly interrupt a receiving link of the signal processing chip, thereby effectively isolating a signal instability period during the power-on process, such that the signal processing chip is locked back into a more stable parameter.

An embodiment of the utility model discloses an optical communication transceiver for a high-density intelligent storage RGV, which comprises an optical communication transceiver, a mounting base, a support rod, an up-and-down adjusting frame, an angle adjusting rod and an angle adjusting frame, the support rod is arranged on the mounting base, the up-and-down adjusting frame is correspondingly arranged on the support rod, the angle adjusting rod is arranged on the up-and-down adjusting frame, and the angle adjusting frame is arranged on the angle adjusting rod. The angle adjusting frame is arranged on the angle adjusting rod, and the optical communication transceiver is arranged on the angle adjusting frame. According to the utility model, the transmitting / receiving height and angle of an optical signal can be conveniently adjusted to avoid the shielding and ensure smooth communication; interference of other light sources or reflecting surfaces can be avoided, and the communication quality is improved; according to the utility model, the beam path can be optimized by adjusting the height and the angle, so that the RGV can be ensured to maintain stable communication at different positions of the stereoscopic warehouse; according to the utility model, the communication performance can be optimized, and the running efficiency of the RGV can be improved.

An optical communication device includes a signal multiplexing unit that multiplexes a plurality of client signals and a signal transmission unit that converts a first multiplexed signal obtained by the multiplexing to an optical signal and transmits the optical signal. The optical communication device is a device capable of receiving data traffic greater than data traffic corresponding to a predetermined communication bandwidth.

The utility model relates to the technical field of communication equipment, and discloses an optical transmission device with a high temperature alarm function, which comprises an optical fiber transceiver body, the right side of the optical fiber transceiver body is fixedly connected with a fixing plate, and a pressing rod is movably sleeved in the fixing plate. And the other end of the pressing rod penetrates through the fixing plate, extends into the fixing plate and is fixedly connected with a moving block. Through the arrangement of a pressing rod, a moving block, inclined rods, a closing plate and a limiting block, when the pressing rod is pressed, the pressing rod overcomes the elastic force effect of a second spring, the moving block is driven to horizontally move rightwards under the limiting effect of a fixing plate, the two inclined rods are made to move, and the two inclined rods extrude and push the closing plate; the two sealing plates drive the two limiting blocks to vertically move back to back under the limiting action of the sliding grooves, finally the sealing effect of the interface is relieved, and the protection effect of the interface is achieved when the device is idle.

The utility model belongs to the technical field of optical transceivers, and particularly relates to a detachable optical transceiver front panel, which comprises an optical transceiver body, and a front panel body is arranged on one side of the optical transceiver body. A locking mechanism is rotationally mounted on the front panel body, and a quick release mechanism is arranged on the back of the front panel body; wherein the quick release mechanism comprises a plug fixedly mounted on the back of the front panel body, the plug penetrates through the clamping assembly to be clamped with the mounting seat, and the mounting seat is fixedly mounted with the optical transceiver body through the mounting groove, so that the optical transceiver body is clamped with the front panel body. According to the utility model, the fool-proof installation of the front panel and the optical transceiver can be realized under the action of the positioning frame, and meanwhile, the quick disassembly and locking of the front panel can be realized under the linkage of the quick disassembly mechanism and the locking mechanism which are arranged between the front panel and the optical transceiver.