6281 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.

The invention relates to the technical field of visual inspection, and particularly discloses an optical communication filter appearance defect detection method and related device.The optical communication filter appearance defect detection method comprises the steps that polarization image sets of an optical communication filter to be detected at different polarization angles are obtained; preprocessing the polarization image set to obtain a defect enhancement image set; performing defect detection on the defect enhancement image set based on a pre-trained multispectral attention fusion network; according to the method, multi-polarization information, special preprocessing and a deep learning network combined with frequency domain-space feature fusion and a cross-modal attention mechanism are utilized, the detection capacity of the defects which are tiny, low in contrast and interfered by film layer textures on an optical communication filter is improved, and the omission ratio is reduced.

A system includes a housing and a first circuit board positioned inside the housing. The housing has a top panel, a bottom panel, a left side panel, a right side panel, a front panel, and a rear panel. The front panel is at an angle relative to the bottom panel in which the angle is in a range from 30 to 150°. The first circuit board has a length, a width, and a thickness, in which the length is at least twice the thickness, the width is at least twice the thickness, and the first circuit board has a first surface defined by the length and the width. The first surface of the first circuit board is at a first angle relative to the bottom panel in which the first angle is in a range from 30 to 150°. The first surface of the first circuit board is substantially parallel to the front panel or at a second angle relative to the front panel in which the second angle is less than 60°. The system includes a first data processing module and a first optical interconnect module both electrically coupled to the first circuit board. The optical interconnect module is configured to receive first optical signals from a first optical link, convert the first optical signals to first electrical signals, and transmit the first electrical signals to the first data processing module.

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.

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 a signal emission control method and device based on optical communication and a signal emission laser. The method comprises the following steps: acquiring output light intensity data of the vertical cavity surface emitting laser in a preset temperature range and a bias current range, and determining a bistable working characteristic curve; acquiring a vibration resonance gain signal; gaussian distribution transformation and target phase sampling are performed on the vibration resonance gain signal, and a signal nonlinear compensation model is established; applying a driving current pulse synchronous with communication data, symmetrically sampling the output signal subjected to transient response control at a rising edge and a falling edge, and constructing a signal quality evaluation vector; and inputting a support vector regression model, establishing a mapping relation between the light intensity characteristic parameter and the driving control parameter, and generating a real-time control signal of the laser. According to the invention, the self-adaptive accurate control of the vertical cavity surface emitting laser is realized, and the stable operation of the signal emitting laser under the temperature and bias current fluctuation condition is ensured.

The invention relates to the technical field of optical communication, in particular to an optical module heat dissipation structure and a heat dissipation method thereof.The optical module is composed of an upper cover, a base, a PCBA board, an upper heat dissipation assembly and a lower heat dissipation assembly, and the upper heat dissipation assembly and the lower heat dissipation assembly are arranged on the upper side and the lower side of the PCBA board respectively and each composed of a heat conduction board and a heat dissipation device; the heat-conducting plate is arranged between the PCBA plate and the radiator, the first side of the heat-conducting plate is in contact with the PCBA plate, the second side of the heat-conducting plate is in contact with the radiator, and the radiator is internally provided with a radiating main air duct extending in the length direction of the radiator; cooling fins are embedded in the first side and the second side of the radiator, the cooling fins embedded in the second side of the radiator make contact with the corresponding upper cover or base, and the second side of the radiator is the side away from the heat conduction plate. According to the invention, heat generated by components on the PCBA board is transferred and dissipated by adopting a heat dissipation mode of combining dual-channel air-cooled heat dissipation and contact heat dissipation, and the internal temperature of the optical module can be efficiently reduced.

The invention provides an optical image encryption method and system based on a partially coherent non-diffracting light beam, and belongs to the technical field of optical encryption and information transmission. Encoding to-be-encrypted image information into the light field cross-spectral density function; the method specifically comprises the following steps: discretizing an image as an expansion coefficient of a power spectral density function at a light source under a pseudo-mode substrate, and constructing a cross spectral density function; a complex amplitude modulation algorithm is adopted to convert light field complex amplitude distribution into a pure phase hologram, the pure phase hologram is loaded to a spatial light modulator, a multi-mode incoherent superposition partially coherent non-diffraction light beam is generated, and the multi-mode incoherent superposition partially coherent non-diffraction light beam interferes with a reference light beam to obtain a light field image; performing coordinate transformation and frequency domain filtering on the light field image to extract a complex coherence degree function; and reconstructing and restoring the original image information in combination with a preset key and a digital inversion algorithm. According to the method, the light beams are constructed based on pseudo-mode superposition, image hidden coding, transmission and decryption are realized by utilizing the characteristics of partially coherent light and non-diffraction light beams, and the method is suitable for optical communication and security information transmission.

Aspects of the subject disclosure may include, for example, a device including a detector configured to identify a narrow-band absorption occurring within a signal spectrum of an optical signal propagating through a gaseous medium, wherein the optical signal is configured to communicate digital information via an optical communication link including a transmitter, a receiver and an optical transport medium therebetween. The device further includes a mitigation controller configured to control a digital circuit to mitigate at least a portion of a vulnerability of the optical communication link, the vulnerability associated with the narrow-band absorption. Other embodiments are disclosed.

Described herein are a computing systems comprising a photonic interposer having an optical network comprising a plurality of waveguides and a plurality of controllable optical switches; an electronic die having a surface bonded to the photonic interposer, an inner interface comprising a first plurality of ports electrically coupling the electronic die to the photonic interposer through the surface; and an outer interface comprising a second plurality of ports electrically coupling the electronic die to the photonic interposer through the surface, wherein the outer interface at least partially encloses the inner interface.

The invention discloses a satellite-ground cooperative wide-area real-time communication system and a communication method thereof, and relates to the technical field of satellite-ground cooperative communication, and the communication method comprises the following steps: deploying a satellite-ground cooperative network, configuring initial link parameters and node identifiers of a satellite and a ground station, and establishing a link state table; the link state data in the link state table are fed back to the control end, and the control end calculates a link comprehensive score based on the link state data; according to the real-time optical communication channel state and the interference condition, the light beam direction is dynamically adjusted, communication channel reconstruction is carried out, and the optimal optical communication channel is selected; transmitting the encoded data stream to a receiving end through the optimal optical communication channel, and decoding the encoded data stream by the receiving end through a decoder to generate link quality data; and updating the link state table according to the link quality data. Based on the real-time optical communication channel state and the interference condition, the light beam direction is dynamically adjusted, the communication channel is reconstructed, the optimal transmission path of the channel is ensured, and therefore the signal transmission quality and the bandwidth utilization rate are improved.

A system includes a housing and a first circuit board positioned inside the housing. The housing has a top panel, a bottom panel, a left side panel, a right side panel, a front panel, and a rear panel. The front panel is at an angle relative to the bottom panel in which the angle is in a range from 30 to 150°. The first circuit board has a length, a width, and a thickness, in which the length is at least twice the thickness, the width is at least twice the thickness, and the first circuit board has a first surface defined by the length and the width. The first surface of the first circuit board is at a first angle relative to the bottom panel in which the first angle is in a range from 30 to 150°. The first surface of the first circuit board is substantially parallel to the front panel or at a second angle relative to the front panel in which the second angle is less than 60°. The system includes a first data processing module and a first optical interconnect module both electrically coupled to the first circuit board. The optical interconnect module is configured to receive first optical signals from a first optical link, convert the first optical signals to first electrical signals, and transmit the first electrical signals to the first data processing module.

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 discloses a light beam focal length controllable system of a BOSA optical device and an implementation method thereof, relates to the technical field of optical communication, and solves the problems of focal length drift, light beam quality reduction and poor eye pattern quality caused by ambient temperature fluctuation in the prior art. Comprising a first focal length quality analysis module, a second focal length quality analysis module, an intelligent focal length adjustment module and a signal optimization module, the first focal length quality analysis module predicts future environment temperature change through a long-short term memory network, and plans an optimal focal length path in advance; the second focal length quality analysis module identifies light beam characteristic parameters by using a depth image identification algorithm, and performs multi-objective optimization in combination with an environment temperature change trend; the intelligent focal length adjustment module dynamically adjusts the focal length according to the optimization suggestion; the signal optimization module carries out waveform shaping and noise suppression by using a deep learning network, so that the eye pattern quality is remarkably improved; according to the invention, the focal length stability of the system is greatly improved, and the performance and reliability of the optical communication system are enhanced.

The invention belongs to the field of optical communication, and particularly discloses a hollow-core optical fiber connector and a manufacturing method thereof.The connector comprises a connecting piece, the connecting piece is fixedly installed at the end of a hollow-core optical fiber body, and an insertion hole for the hollow-core optical fiber body to penetrate through is formed in the connecting piece; and the plugging structure is arranged at one end of the connecting piece to physically plug the central channel of the hollow-core optical fiber body, and the plugging structure can allow optical signals transmitted in the central channel to pass through. Based on the structural design of the hollow-core optical fiber connector, butt joint of the two hollow-core optical fibers can be achieved by butt joint of the plugging structures on the two hollow-core optical fiber connectors, it is guaranteed that optical signals are transmitted in the two hollow-core optical fiber bodies, no special equipment needs to be adopted for fusion welding, the connection mode is simpler and more convenient, and the cost is lower. Meanwhile, due to the design of the plugging structure, the problem that water vapor and impurities enter the central channel of the hollow-core optical fiber body to affect optical signal transmission can be effectively avoided.

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 invention relates to an underwater optical communication LDPC (Low Density Parity Check) coding processing method. The method comprises the following steps: determining a current channel quality grade based on a real-time communication distance and channel state information; dynamically selecting LDPC (Low Density Parity Check) coding parameters and modulation orders in combination with equipment mobile data and channel quality levels, and generating an adaptive parameter combination; performing error correction coding on the data according to the selected parameters and generating an optical communication signal; transmitting to a receiving end through an optical channel; and dynamically updating the coding parameter and the modulation order based on the feedback information of the receiving end. According to the method, the problem that a traditional fixed coding scheme is insufficient in error correction capability or wastes resources in a dynamic distance scene is solved by predicting the equipment moving trend and the channel state in real time and adaptively adjusting the coding parameters and the modulation mode, the error rate is remarkably reduced, the communication efficiency is improved, and the method is suitable for a complex and changeable underwater optical communication environment.

The invention belongs to the technical field of optical communication, and particularly relates to a high-integration-level direct insertion type circular active connector optical cable assembly which comprises a modified connector, a shell connected with the assembling end of the modified connector, a printed board assembly fixedly arranged in the shell and an optical cable assembly. The printed board assembly comprises a rigid printed board I which is in welding fit with a pin contact element in the modified connector, and two end parts of the rigid printed board I are connected with flexible printed boards. According to the high-integration-level in-line circular active connector optical cable assembly in the technical scheme, the photoelectric / electro-optical conversion chips mounted on the rigid printed board II are all vertical emitting light and vertical receiving light, and the photoelectric / electro-optical conversion chips are coupled by adopting the lenses, so that on one hand, the lenses play a role in protecting the photoelectric / electro-optical conversion chips and the gold wires, and on the other hand, the optical cable assembly is not damaged; on the other hand, the optical path can be rotated by 90 degrees to be parallel to the second rigid printed board, it is guaranteed that the optical cable center line and the active electric connector optical cable assembly are located on the same center line, and coaxial fiber output is achieved.

The invention relates to the field of optically-carried information technology and provides a method and device for optically-carried information transmission based on full-spectrum LEDs. The method addresses the problem of visual perception interference caused by multi-color LEDs used for data transmission in the prior art. The method includes: dividing the data to be transmitted according to the first transmission demand information, obtaining a second preset number of data segments; selecting target monochromatic LEDs based on the luminous characteristics of the LEDs and the first transmission demand information; processing the data segments using the target LEDs and preset modulation algorithms to generate corresponding LED control signals; and controlling the target LEDs to transmit optically-carried information based on the control signals. This invention ensures optical communication performance while effectively reducing interference, thus improving the reliability of the optically-carried information system.

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.

An optical communication receiver system for a mobile platform includes: a surface having an entrance aperture for entry of an optical communication signal from a remote source; an optical receiver to receive the optical communication signal through the entrance aperture; a reflective layer over at least a portion of the surface to at least partially reflect an alignment beam that is substantially coincident with the optical communication signal; a camera positioned to detect the reflected alignment beam; a processor to determine alignment information about the alignment beam relative to the entrance aperture based on the reflected alignment beam detected by the camera; and a transmitter to transmit the alignment information to the remote source to enable the remote source to center the optical communication signal in the entrance aperture.

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 embodiment of the utility model provides an optical fiber recognizer and an optical fiber recognition system, and belongs to the technical field of optical communication, the optical fiber recognizer comprises a vibration structure and a bending structure, an optical signal on an optical fiber firstly passes through the vibration structure and then passes through the bending structure, the vibration structure drives the optical fiber to reciprocate so as to repeatedly bend the optical fiber, and an optical signal with periodically changed optical power is generated. The bending structure drives part of the optical fiber to move to bend the optical fiber, and the variation of the optical power can be judged by detecting the light leakage amount caused by bending of the optical fiber. When the detector detects and identifies the periodically changing optical signal, online lossless identification of the optical fiber is realized, and the periodically changing optical signal is taken as a criterion, so that misjudgment can be avoided. According to the variable quantity of the optical power, feedback adjustment of the bending quantity of the optical fiber can be achieved, the bending quantity can be correspondingly adjusted according to optical fibers with different wire diameters and wavelengths, optical signals with certain optical power variable quantity and periodical change are generated, accurate lossless identification is achieved, and the risk of service interruption caused by too large bending loss is avoided.

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 utility model relates to the technical field of optical communication, and provides an optical module, which comprises a shell and a PCB (printed circuit board) arranged in the shell, a functional chip is arranged on the PCB, the optical module further comprises a vapor chamber arranged outside the shell and a heat conduction piece used for transferring heat of the functional chip to the vapor chamber, and the shell is provided with an opening for the heat conduction piece to penetrate through. Compared with a traditional mode that the vapor chamber of the optical module is arranged in the shell, and the vapor chamber firstly receives heat and then transmits the heat to the shell to dissipate the heat, the vapor chamber of the optical module is arranged outside the shell, so that the heat dissipation capability of the vapor chamber is utilized to the maximum extent; the heat conduction piece penetrates through the opening of the shell to directly transfer heat to the vapor chamber to be dissipated outside the shell, the heat dissipation path directly avoids the shell, heat dissipation is more direct, and the heat dissipation effect is better; by adopting the heat dissipation mode, heat accumulation can be reduced, a chip in the shell is ensured to be at a normal working temperature, high-frequency packaging matching of an optical chip, an electric chip and a PCBA (Printed Circuit Board Assembly) is realized, and a series of problems caused by heat dissipation are avoided.

The invention relates to the technical field of optical communication, and discloses array lens and FA synchronous coupling equipment which comprises a carrying table mechanism, a carrying and dispensing mechanism is arranged on the rear side of the carrying table mechanism, and feeding mechanisms are arranged on the left side and the right side of the carrying table mechanism; the carrying table mechanism comprises a coupling carrying table, a substrate jig is arranged on one side of the coupling carrying table, and a lens jig is arranged on the other side of the coupling carrying table. The carrying and dispensing mechanism is used for carrying an optical module substrate and dispensing, the feeding mechanisms on the two sides are used for moving an array lens and an FA respectively, and then the coupling and mounting production process, needing to be repeated for multiple times, of an existing multi-channel lens is simplified to only need one-time coupling and mounting; the invention further discloses a synchronous coupling method, the FA is synchronously coupled in the lens coupling process through the synchronous coupling device, the two procedures are combined to be completed in one procedure, the production technology is simplified, and the production efficiency of the optical module is greatly improved.

A photoacoustic catheter adapted for placement within a blood vessel having a vessel wall includes an elongate shaft, a balloon and a photoacoustic transducer. The elongate shaft can extend from a proximal region to a distal region. The elongate shaft can include a light guide that is configured to be placed in optical communication with a light source. The balloon is coupled to the elongate shaft, and can be configured to expand from a collapsed configuration suitable for advancing the photoacoustic catheter through a patient's vasculature to a first expanded configuration suitable for anchoring the photoacoustic catheter in position relative to a treatment site. The photoacoustic transducer can be disposed on a surface of the balloon and in optical communication with the light guide. The photoacoustic transducer can include a light-absorbing material and a thermal expansion material.

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 belongs to the technical field of photoelectronics, and particularly relates to a wide-spectrum narrow-linewidth semiconductor mode-locked laser, and the collaboration of a saturable absorption region SA and a resonator is reflected in time domain-frequency domain dual optimization. And the resonator optimizes the frequency domain characteristics through nonlinear broadening, phase synchronization and mode purification. The SA adjusts a mode locking threshold value in real time through dynamic bias voltage, the pulse energy stability is ensured, dispersion management of the resonator balances the SPM and group velocity dispersion, spectrum splitting is avoided, and the dissipative soliton form is maintained. Besides, due to heterogeneous integration of the InP-based SA and the SiN-based resonator, wafer bonding of the InP-based SA and the SiN-based resonator is realized, high-efficiency energy transfer is realized through the low-loss conical waveguide, a high-performance frequency comb with a wide spectrum and a narrow pulse width is output, and the high-performance frequency comb can be widely applied to the fields of ultrafast optics, coherent light communication and precision spectroscopy.

An optical communication system comprises a transmitter optically coupled to a single-mode optical channel, and a multimode optical fibre configured to support transmission of a plurality of guided modes. The plurality of guided modes comprises a target mode. The system further comprises an optical mode converter configured to optically couple the mode of the channel to the target mode of the multimode fibre by gradually changing a transverse profile of propagating light received from the channel to match a transverse profile of the target mode of the multimode fibre.