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2050 results about "Optical switch" patented technology

An optical switch is a device that selectively switches optical signals on or off or from one channel to another. The former is known as an optical (time-domain) switch or an optical modulator, while the latter is called an optical space switch or an optical router. Since the switching can be temporal or spatial, such switches are analogous to one-way or two-way switches in electrical circuits. In general, optical modulators and routers can be made from each other.

Surface collapse monitoring system based on multi-parameter distributed optical fiber sensing

The invention relates to a surface collapse monitoring system based on multi-parameter distributed optical fiber sensing, and the system comprises a monitoring module which comprises a plurality of fully distributed optical fiber sensors laid in a monitoring area, and an optical signal transmission and demodulation module which comprises a continuous spectrum laser, an optical switch, an optical amplifier, an optical filter, and a demodulation module. The data processing and analysis center comprises a data acquisition module and a collapse model modeling module, and the data acquisition module is used for performing acquisition and digital conversion on the optical signal demodulated by the demodulation module; the collapse model modeling module constructs a model according to the monitoring data and can predict the development trend of surface collapse; and the early warning and communication module communicates with a remote monitoring center. The monitoring system provided by the invention has the advantages of multi-parameter monitoring, high monitoring precision, suitability for large-scale laying, real-time response and the like, and can comprehensively and accurately reflect the real condition of surface collapse.
Owner:GENERAL PROSPECTING INSTITUTE OF CHINA NATIONAL ADMINISTRATION OF COAL GEOLOGY +1

All-optical switching device with high isolation for automotive and other applications

The invention relates to an optically controllable switching device having a first and second line section, between which an optically controllable switch (T2) is inserted, and having a sensor element (SE). The optically controllable switch (T2) disconnects or connects depending on an optical switching signal (SB), whether the switch is "on" or "off". The sensor element (SE) comprises a carrier material (TM) with crystals comprising one or more paramagnetic centers (NV). When irradiated with pump radiation (LB), the sensor element (SE) emits fluorescent radiation (FL) which depends on the magnetic flux density B at the location of the sensor element (SE). A line current (I LTG) in the first line section of the line (LTG) generates a magnetic field with a flux density B which, with sufficient current strength, influences the fluorescent radiation (FL) from one or more paramagnetic centers (NV). The optically controllable switching device has first means (LWL1, PL1, LIV) for irradiating the one or more paramagnetic centers (NV) with pump radiation (LB) and second means (LWL2, F1, PD, LIV) for detecting and separating the fluorescent radiation (FL) and for detecting a measured value signal which depends on the intensity of the fluorescent radiation (FL) and / or on the phase shift of the modulation signal of the temporal profile of the intensity of the fluorescent radiation (FL). The optically controllable switching device has third means (LIV) for generating an optical switching signal (SB) and for controlling the state of the optically controllable switch (T2) using this optical switching signal (SB).The optical switching signal (SB) depends on the intensity of the fluorescence radiation (FL) and / or on the phase shift of the modulation signal of the temporal course of the intensity of the fluorescence radiation (FL).
Owner:ELMOS SEMICON AG +1

Distributed optical fiber temperature detection double-end correction device and method

The invention provides a distributed optical fiber temperature detection double-end correction device and method, and belongs to the technical field of optical fiber logging, the upper end of a logging optical cable is connected with a ground reference optical fiber ring, and the lower end of the logging optical cable is connected with an optical fiber grating sensor; the electronic temperature sensor is placed in the ground reference optical fiber ring, the measurement and control module is connected with the electronic temperature sensor, and the temperature of the ground reference optical fiber ring is measured through the electronic temperature sensor; the pump light source and the DTS measurement module are connected with the COM optical splitter; the optical switch is used for switching DTS distributed optical fiber measurement and optical fiber grating sensor measurement; temperature values measured by the DTS distributed optical fiber and the optical fiber grating sensor serve as reference data to adjust measurement parameters of the DTS measurement module, and double-end correction of DTS temperature measurement data is completed. The ground reference optical fiber is combined with the electronic thermometer, and the optical fiber grating sensor is adopted underground, so that distributed optical fiber temperature measurement double-end correction is realized.
Owner:CHINA NAT PETROLEUM CORP +1

Single-core self-healing type looped network networking method and system

The invention relates to the technical field of hydropower engineering, and discloses a single-core self-healing type looped network networking method and system, and the method comprises the steps: dividing a whole network into a plurality of sub looped networks; each sub-ring network operates independently; the light switch in each sub-ring network adopts an A / B end connection mode; reversely connecting the B end of the last measuring point to the A end of the initial measuring station by using an optical fiber to form a closed physical structure; configuring a protocol on the switch, and controlling a data flow path through the protocol; different sub-ring networks are connected through RJ45 ports, and a CAT5E shielded twisted pair or an Ethernet interface is used; when a certain node or link fails, the protocol automatically triggers a switching mechanism; the master station optical transceiver monitors the states of all nodes in real time and displays fault points through a network management interface. The system comprises a sub-ring network module, a control data flow module and a fault point display module. The problems that a traditional networking method of hydropower engineering is poor in reliability, and self-healing cannot be achieved after an intermediate node is disconnected are successfully solved.
Owner:POWER CHINA KUNMING ENG CORP LTD

Optical communication network routing optimization method and system

The invention discloses an optical communication network route optimization method and system, particularly relates to the technical field of multi-domain optical network collaborative networking, and is used for solving the problem of path selection deviation caused by topology abstraction and simplification in an existing multi-domain optical network. Intra-domain topology compensation parameters representing potential path resource consumption in sub-domains are reversely generated by acquiring inter-domain topology abstract information of a cross-domain optical network, and a hidden link competition relationship shared by cross-domain optical paths is dynamically monitored in combination with real-time link resource data to generate a competition intensity index; evaluating a port resource consumption weight based on a compensation parameter and a competition intensity index, fusing a load state to generate an optimal port selection weight, and finally screening a global path through a weight priority and triggering an optical switching node instruction to establish a cross-domain optical path; dynamic collaborative optimization of resource consumption and competition conflicts in the multi-domain optical network is realized, the accuracy of cross-domain path selection and the global utilization rate of network resources are effectively improved, and the risks of redundancy jump and local link congestion are reduced.
Owner:FUJIAN XINTONG COMM TECH DEV CO LTD

Chiplet communication using an optical communication substrate

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.
Owner:LIGHTMATTER INC

Optical carrier microwave stable transmission system based on temperature control optical fiber delay line

According to the optical carrier microwave stable transmission system based on the temperature control optical fiber delay line provided by the invention, accurate reverse compensation is carried out on delay jitter change through the delay compensation module, and excellent delay consistency is shown in ultra-wideband signal transmission; the defect that compensation devices such as a traditional piezoelectric ceramic optical fiber stretcher, an optical phase shifter, a cascade multi-stage optical switch and a motor space optical delay line cannot meet the requirements of large range, high precision, quick response and wide frequency spectrum compensation capability at the same time is overcome; that is to say, the link delay compensation scheme in the transmission system has large-range, high-precision, quick-response and wide-spectrum compensation capabilities, and is particularly suitable for optical fiber transmission links with high stability and consistency requirements on ultra-wideband signal transmission.
Owner:BEIJING INST OF TECH

On-chip all-optical switching network device, semiconductor device and manufacturing method thereof

The invention provides an on-chip all-optical switching network device, a semiconductor device and a manufacturing method thereof. The on-chip all-optical switching network device comprises: a photonic chip formed with at least two photonic integrated circuit sub-chips optically interconnected with each other; the at least two optical switching control analog electric chips are respectively arranged on the at least two photon integrated circuit sub-chips; each photon integrated circuit sub-chip is internally provided with at least one on-chip optical switch, at least two communication nodes suitable for communicating with an external device, and a plurality of first type optical waveguides used for connecting the on-chip optical switch and the communication nodes; on the photon chip, communication between any two communication nodes is realized through at least one on-chip optical switch. According to the invention, through the plurality of on-chip optical switches, a series of digital electric chips can carry out parallel processing on information at the same time, and the requirements of an artificial intelligence algorithm on computing power and bandwidth can be better met.
Owner:HANGZHOU GUANGZHIYUAN TECH CO LTD

Method for optimizing dispersion effect of broadband millimeter wave phased array and self-adaptive calibration

The invention provides a broadband millimeter wave phased array dispersion effect optimization and adaptive calibration method, and relates to the field of satellite communication. According to the method, a beam pointing error of a millimeter wave satellite communication phased-array antenna caused by a dispersion effect is reduced based on a real-time delay module switched by an optical fiber and an optical switch, and a calibration interval is determined by using a vector average algorithm in combination with working frequency and bandwidth; data obtained after equiphase surface compensation is used as compensation data of a corresponding frequency band to be stored in the antenna, when the antenna works at different frequencies, the pre-stored compensation data in the corresponding frequency band is called according to polarization characteristics, and corresponding resolving phase data of each unit at the current frequency point and pointing direction are superposed to obtain an overlapped resolving phase data; and directional diagram beam pointing under the frequency point is realized. The problem that the antenna beam pointing error is caused by the dispersion of the broadband millimeter wave satellite communication phased-array antenna is solved. According to the method, the beam pointing precision of the millimeter wave satellite communication phased-array antenna is improved, and rapid frequency switching and beam switching are realized.
Owner:BEIJING INST OF REMOTE SENSING EQUIP

Structures and methods for phase shifting in optical devices

Within integrated photonic circuits the ability to induce an optical phase shift allows multiple circuit elements to be implemented including, for example, modulators and optical switches. It is beneficial to achieve lower power consumption for these phase shift elements to reduce overall power consumption of the photonic circuits and their associated drive circuits. Exploiting processing techniques for microelectromechanical systems (MEMS) designs are outlined for high efficiency thermo-optic phase shifter elements with suspended elements that improve thermal isolation and counteract stress induced phase shifts that reduce the thermal induced phase shift. MEMS based spring structures provide both mechanical support and thermal pathways for improved responsivity. Other designs employ direct MEMS based modification of the waveguide path length without exploiting thermal based index changes.
Owner:MENARD FRANCOIS +5

Lighting apparatus

A lighting apparatus includes a light source plate, multiple types of LED modules, a switch connector, a manual switch, a controller and a main housing. The multiple types of LED modules respectively emit lights of different parameters. The switch module is used for holding a state among multiple candidate states. The switch connector is disposed at least partially on a back side of the light source plate. The manual switch is coupled to the switch module via the switch connector to change the state. The controller is coupled to the switch module for determining a set of driving currents supplied to the multiple types of LED modules to emit a mixed light of a required parameter corresponding to the state of the switch module. a main housing for holding the light source plate. The main housing has a lateral wall.
Owner:LEEDARSON GREEN LIGHTING

Optical memristor

The invention discloses an optical memristor, and relates to the field of photon integrated circuits and optical computing, and the optical memristor comprises a waveguide layer, a ferroelectric film layer, an electrode structure and a substrate. The ferroelectric film layer is located on the upper surface of the substrate; the waveguide layer and the electrode structure are located on the upper surface of the ferroelectric film layer; the waveguide layer is used for propagating an incident light signal and performing amplitude modulation on the incident light signal; the electrode structure is used for applying an electric field to the ferroelectric film layer; and the ferroelectric film layer is used for carrying out phase modulation on optical signals transmitted in the waveguide layer under the action of the electric field. The ferroelectric material is used as the optical switch of the optical memristor, efficient modulation of the optical phase is achieved through the non-volatility and the high electro-optical effect of the ferroelectric material, and meanwhile the optical memristor has the advantages of being low in energy consumption and rapid in response.
Owner:NANKAI UNIV

Crosstalk measurement device and crosstalk measurement method

PCT designated stage expiredWO2025023064A1Testing optical propertiesCrosstalk measurementWaveguide
A crosstalk measurement device (1) is characterized by comprising: a first optical switch (61) capable of selectively switching to any one of a plurality of optical waveguides; a connection optical waveguide for optically connecting the other end (18) of one optical waveguide and the other end (18) of another one optical waveguide among the plurality of optical waveguides; an OTDR (20) that is optically connected to one end of the one optical waveguide via the first optical switch (61), causes light to enter the one optical waveguide from one end (17) thereof as incoming light, and measures the power of light emitted from the one end of the one optical waveguide, the emitted light including crosstalk light (CL1) generated through crosstalk of the incoming light between the one optical waveguide and the other one optical waveguide; and a processing unit (25) for determining crosstalk between the one optical waveguide and the other one optical waveguide by using the measured power of the emitted light.
Owner:FUJIKURA LTD

System and method for supporting court cross-network audio and video signaling two-way interaction

The invention discloses a court cross-network audio and video signaling two-way interaction system and method. The system comprises a multi-protocol access adaptation module, a security isolation module and the like. The multi-protocol access adaptation module is provided with a special access adaptation unit for multiple protocols; the security isolation module realizes physical isolation through a security data exchange platform and a one-way audio and video optical shutter, and a built-in signaling security detection unit detects signaling; the signaling conversion module converts the signaling into an internal uniform format and adapts to the internal uniform format; the signaling processing module processes signaling, extracts information, schedules resources and feeds back a result; the network adaptation module adjusts transmission parameters; the identity authentication and authorization module uses multi-factor authentication and fine-grained authorization. The method comprises the steps of signaling initiating and receiving, identity authentication and authorization, multi-protocol access adaptation, signaling conversion processing and the like. The system solves the problems of cross-network communication protocol compatibility and the like, and improves the convenience and safety of judicial services.
Owner:南京通达海软件有限公司

Low-power-consumption multiple-input-multiple-output thermo-optical switch chip

The invention discloses a low-power-consumption multiple-input-multiple-output thermo-optical switch chip which comprises N optical input ports, an N * N optical beam splitter, N spiral waveguide thermo-optical phase shifters, an N * N optical beam combiner and N optical output ports. The N * N light beam splitter and the N * N light beam combiner adopt the same design structure and comprise N single-mode input / output waveguides, N width gradient waveguide transition areas (taper areas) and a multi-mode waveguide area, and each single-mode input and output waveguide is connected to the multi-mode waveguide area through the width gradient waveguide transition area. The spiral waveguide thermo-optic phase shifter comprises two spiral waveguides with different sizes, an S bend with a gradually-changed width and a circular heating electrode. The transmission path of light in the chip can be changed by adjusting the spiral waveguide thermo-optical phase shifter, and the function of optical switch switching is achieved. The invention has the advantages of high integration level, high expandability and low power consumption, and can be used in the field of integrated photon chips.
Owner:SOUTHEAST UNIV

Unidirectional optical fiber transmission system

The invention relates to the technical field of optical fiber transmission, and discloses a unidirectional optical fiber transmission system, which comprises a first optical splitter, a second optical splitter, a third optical splitter, a first optical fiber, a second optical fiber, a first filter, a second filter, a first detection module, a second detection module, an optical switching module and a control module, when the first optical splitter receives optical signals and outputs the optical signals to the first optical fiber and the second optical fiber respectively, the control module controls the optical switching module to gate the second optical splitter to receive the optical signals transmitted by the first optical fiber according to detection results of the first detection module and / or the second detection module, or controls the optical switching module to gate the second optical splitter to receive the optical signals transmitted by the second optical fiber. Gating a third optical splitter to receive the optical signal transmitted by the second optical fiber; according to the technical scheme, the misjudgment rate is effectively reduced, and the accuracy and response speed of link switching are improved.
Owner:SHENZHEN GUANGPAI COMM TECH CO LTD

Optical switch, optical switch assembly and optical switch integrated component

The invention provides an optical switch, an optical switch assembly and an optical switch integrated component, and belongs to the technical field of optical communication. The optical switch provided by the invention comprises an input waveguide, a multi-mode waveguide and a plurality of output waveguides which are connected in sequence, the optical switch further comprises a plurality of strip-shaped electrodes located on one side of the multi-mode waveguide, and the plurality of strip-shaped electrodes can modulate an optical field propagation path in the multi-mode waveguide. The optical switch adopts a planar waveguide structure, and an optical field propagation path in the multimode waveguide can be modulated through the electrodes, so that the structure of the optical switch is effectively simplified, and the number of output ports is convenient to expand. Moreover, the optical switch adjusts the refractive index distribution of the multi-mode waveguide through the electrode, so that modulation of a light field propagation path is realized, the working range of the input wavelength of the optical switch is not limited, and wide-wavelength working can be realized.
Owner:HUAWEI TECH CO LTD +1

Multifunctional indoor lighting system based on AI

The invention discloses a multifunctional indoor lighting system based on AI, and provides an intelligent and personalized lighting scheme. The system comprises a human body detection module, a light induction module, an emotion recognition module, a music rhythm module, a central control module, a user interaction module and a communication module. The human body detection module uses an infrared sensor, a camera or a radar to monitor personnel activities in real time and automatically control a light switch. The light sensing module dynamically adjusts the brightness through a photosensitive sensor to ensure optimal illumination; the emotion recognition module analyzes emotion in combination with a camera and an AI algorithm, and automatically adjusts the color and brightness of light; the music rhythm module captures music rhythms through a microphone, so that light changes along with the music rhythms, and atmosphere is created. The central control module integrates sensor data, and utilizes an AI algorithm to accurately adjust the light effect. A user can set a personalized scene through a smart phone APP, a voice assistant or a touch panel. And the communication module adopts a Wi-Fi or 2.4 G wireless technology to realize equipment interconnection and remote control. The system has the advantages of intelligent control, energy conservation, environmental protection, multifunctional integration and the like, is widely suitable for families, offices and entertainment venues, and improves the lighting experience.
Owner:WUHAN POLYTECHNIC UNIVERSITY

Communication method between graphics processors, product, equipment and medium

The invention discloses a communication method between graphics processors, a product, equipment and a medium, relates to the technical field of high-performance calculation and artificial intelligence acceleration, and is applied to a stand-alone system comprising a plurality of graphics processors and a central photoelectric hybrid switching chip constructed based on interconnection of an electric switching matrix and an optical switching matrix. The graphics processor is connected with the central photoelectric hybrid switching chip through an optical link and an electric link; the method comprises the following steps: performing data classification on to-be-transmitted data of a source graphics processor; if the to-be-transmitted data is a control flow, the source graphics processor is controlled to send the to-be-transmitted data to an electric switching matrix through an electric link, and then the to-be-transmitted data is routed to a target graphics processor in the graphics processors; and if the to-be-transmitted data is a data stream, the source graphics processor is controlled to send the to-be-transmitted data to the optical switching matrix through the optical link, and then the to-be-transmitted data is routed to the target graphics processor. Interconnection between graphics processors is optimized to improve communication efficiency between graphics processors.
Owner:SHANDONG YUNHAI GUOCHUANG CLOUD COMPUTING EQUIP IND INNOVATION CENT CO LTD

Semiconductor apparatus and manufacturing method therefor

The present invention provides a semiconductor apparatus achieving interconnection by using an on-chip all-optical switching network module and a manufacturing method therefor. The semiconductor apparatus comprises: a circuit board, which has a plurality of electrical connection paths; an on-chip all-optical switching network module, which is disposed on the circuit board, the on-chip all-optical switching network module comprising a photonic chip and a plurality of analog electrical chips for transceiving which are arranged above the photonic chip, the photonic chip comprising a plurality of communication nodes, a plurality of optical connection paths, and at least one on-chip optical switch which are in corresponding communication connection with the plurality of analog electrical chips for transceiving, and the on-chip optical switch being configured to alter the connection topology among the plurality of communication nodes; and a plurality of computing modules, which are arranged on the circuit board and, by means of the electrical connection paths on the circuit board, are in corresponding communication connection with the plurality of analog electrical chips for transceiving of the on-chip all-optical switching network module, so that the connection topology among the plurality of computing modules can be altered by the on-chip optical switch.
Owner:SHANGHAI XIZHI TECH CO LTD

Variable beam divergence angle laser communication terminal and rapid capturing method thereof

The invention discloses a variable beam divergence angle laser communication terminal and a rapid capturing method thereof, and belongs to the technical field of optical communication equipment. Comprising a main telescope, a fine tracking fast reflecting mirror, a beam splitter, an optical filter, a beam splitter, a beacon receiving lens group, a beacon detector, a signal transmitting lens group, an advanced aiming fast reflecting mirror, a signal receiving lens group, a receiving optical fiber amplifier, a multi-core optical fiber splitter, an optical switch and a transmitting optical fiber amplifier, a signal light emitting light path, a beacon light receiving light path and a signal light receiving light path are formed; the signal light emission light path provides emission light beams through different mode field optical fibers and performs shaping and variable beam divergence angle emission on the emission light by using different paths of an emission mirror group, and the signal light receiving light path is used for completing collection, shaping, coupling and light amplification on input signal light. And the beacon light receiving optical path is used for collecting, shaping and converging the input signal light, and positioning a target light spot by using an image positioning detector. According to the invention, the remote capturing efficiency can be improved.
Owner:NANJING INTANE OPTICS ENG

Lithographic apparatus, metrology systems, illumination switches and methods thereof

A system includes an illumination system, an optical element, a switching element and a detector. The illumination system includes a broadband light source that generates a beam of radiation. The dispersive optical element receives the beam of radiation and generates a plurality of light beams having a narrower bandwidth than the broadband light source. The optical switch receives the plurality of light 5 beams and transmits each one of the plurality of light beams to a respective one of a plurality of alignment sensor of a sensor array. The detector receives radiation returning from the sensor array and to generate a measurement signal based on the received radiation.
Owner:ASML NETHERLANDS BV +1

Transformer body fault comprehensive monitoring system and method based on optical fiber sensing

The invention discloses a transformer body fault comprehensive monitoring system and method based on optical fiber sensing, and belongs to the technical field of transformer monitoring. The transformer body fault comprehensive monitoring system comprises a self-compensation type optical fiber sensing module, a multi-path optical fiber penetrating device, an optical fiber signal demodulation analysis device, an optical switch and a fault monitoring host; the self-compensating optical fiber sensing module comprises a main sensing unit group and a reference sensing unit group, the main sensing unit group is used for monitoring temperature, stress, gas, partial discharge and vibration signals of the transformer, and the reference sensing unit group is deployed in a non-monitoring area outside the transformer; the main sensing unit group and the main sensing unit group form a differential measurement pair to generate a net signal for eliminating environmental interference; the fault monitoring host comprises a multi-parameter dynamic correlation analysis module and an abnormal mode identification module, and is used for carrying out correlation analysis on monitoring data of different sensing units, identifying abnormal signals, carrying out real-time comparison on the abnormal signals based on a correlation analysis result, and determining an abnormal type and a fault position of the transformer.
Owner:STATE GRID SHANGHAI MUNICIPAL ELECTRIC POWER CO

Linear array push-broom imaging spectrum system based on optical fiber device

The invention relates to a linear array push-broom imaging spectrum system based on an optical fiber device, which comprises a spectrograph, an objective lens and an optical switch, and is characterized in that the view field of a telescope objective is fully utilized, and a second optical fiber of a linear array is coupled to the focal plane of the objective lens to fill the one-dimensional view field of the objective lens. The second optical fiber is connected with the optical switch, the on-off of the sub optical fibers corresponding to different view fields is rapidly controlled through the optical switch, and the flight motion of the aerial carrier platform is matched, so that rapid time-sharing detection based on different view fields of the same high-speed spectrometer can be realized, and an imaging spectrum detection effect similar to push-broom imaging detection can be realized. Compared with a conventional linear array sweep imaging spectrum system, the optical fiber array and the optical switch device are adopted to replace a sweep mechanism, sweep mechanical moving parts are not needed, the size and the weight of the imaging spectrum system are greatly reduced, and the influence on the flight stability of an aerial carrier platform is extremely small.
Owner:CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI

Compact atom interferometry inertial navigation sensors with tailored diffractive optics

Various optical systems for use in a light pulse atomic interferometer (LPAI)-based one-, two-, or three-axis accelerometer or gyroscope are disclosed. As an LPAI accelerometer or gyroscope may employ many different laser beams to implement the LPAI functionality, ways of combining these different laser beams to thereby simplify the optical systems are desired. The cooling laser beam portion of the optical system may be simplified using one or more reflective grating chips. The Raman laser beam optics may be simplified using combiners and separators. For LPAI systems sensing along three axes, various optical switching schemes may be employed, including ones that generate variable data-rates with a primary sensing axis having a higher data-rate than the secondary sensing axes. Further, by combining various laser beams in a time-multiplexed manner, the number of optical fiber tethers to a sensor head may be reduced.
Owner:NATIONAL TECHNOLOGY & ENGINEERING SOLUTIONS OF SANDIA LLC

On-chip optical interconnection and switching chip and application system thereof

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.
Owner:ZHEJIANG LAB

Radiation temperature measuring device and method based on dynamic calibration

The invention provides a radiation temperature measurement device and method based on dynamic calibration, and relates to the technical field of radiation temperature measurement. The device is used for measuring temperature information of a hot end component and comprises a first lens group, a temperature measuring probe, a second lens group, an optical switch, an optical filter, a photoelectric detector, a pre-amplifier, an acquisition monitoring system and a controller, after passing through the optical filter, a corresponding temperature measurement characteristic wavelength is obtained; the photoelectric detector is of a thermoelectric refrigeration type, the temperature measurement characteristic wavelength is incident to the photoelectric detector for detection to obtain a corresponding electric signal, the electric signal is amplified into a collectable voltage signal through the pre-amplifier, and the collection monitoring system carries out collection and post-processing to obtain temperature information of the hot end component; the optical switch is arranged at the front end of the optical filter and is controlled to be turned on or turned off through the controller, and the controller is controlled by the collecting and monitoring system.
Owner:INST OF ENGINEERING THERMOPHYSICS - CHINESE ACAD OF SCI

Device and method for generating lammer-type thermal atomic beam light clock based on periodic pulse

The invention provides a device and a method for generating a Lammer-type hot atomic beam light clock based on periodic pulses. The device comprises a pulse laser, a laser frequency stabilization system, an optical switch, a Laammer type hot atom chamber and a laser detection feedback system. Wherein the pulse laser is used for emitting first laser, and the pulse time is nanosecond magnitude. The laser frequency stabilization system is used for carrying out pre-frequency stabilization on the first laser to obtain second laser, and the second laser is conveyed to the Laammer type hot atom chamber through the optical switch; the switching period of the optical switch is set to be microsecond magnitude; the lamplug type hot atom chamber is used for outputting a lamplug type hot first atom beam; and the laser detection feedback system is used for detecting the first atomic beam, feeding back and controlling the pulse laser, locking the frequency of the pulse laser on a transition spectral line of atoms, and obtaining a hot atomic beam light clock. According to the invention, the interaction time of laser and atoms can be controlled, and the utilization rate of the atoms of the Lammer-type hot atomic beam light clock can be improved.
Owner:PEKING UNIV

Deconvolution super-resolution imaging method and device based on deep learning denoising and medium

The invention relates to the technical field of biological microscopic imaging, and discloses a deconvolution super-resolution imaging method and device based on deep learning denoising and a medium. The method comprises the following steps: acquiring a to-be-denoised image of a to-be-imaged structure marked by fluorescent molecules; de-noising the image to be de-noised by using a preset image de-noising neural network to obtain a de-noised image; a training data set for training the network is generated by utilizing the optical switch characteristics of optical switch fluorescent molecules, and the optical switch fluorescent molecules are used for marking to-be-imaged structures of samples in the training data set; the emission spectrum of the fluorescent molecules is overlapped with the emission spectrum of the fluorescent molecules of the optical switch; and carrying out deconvolution processing on the denoised image to obtain a super-resolution imaging image. According to the invention, the large-scale and high-quality true value image is obtained by using the optical switch characteristic of the optical switch fluorescent molecules, and the denoising effect of the image denoising neural network is improved; and denoising the image by using the network, and then carrying out deconvolution on the denoised image to realize large-view living cell single-frame super-resolution imaging.
Owner:INSTITUTE OF BIOPHYSICS CHINESE ACADEMY OF SCIENCES

Optical switch and optical communication network switching chip

The invention relates to an optical switch and an optical communication network switching chip. The optical switch comprises a substrate, a first insulating layer and a phase shift layer which are stacked in sequence, the phase shift layer comprises a first positive doped region, a first multimode interference device and a first negative doped region, the first multimode interference device is a ridge waveguide, and at least part of the ridge waveguide is an intrinsic semiconductor; the first positive doped region and the first negative doped region are located on the two sides of the ridge-shaped waveguide, and the first positive doped region, the ridge-shaped waveguide and the first negative doped region form a first PIN phase shifter which is used for switching the on-off state of the optical switch; the ridge waveguide comprises a first input waveguide, a second input waveguide, a first output waveguide and a second output waveguide, the first input waveguide and the second input waveguide are located on the first side of the ridge waveguide, the first output waveguide and the second output waveguide are located on the second side of the ridge waveguide, and the first input waveguide is opposite to the first output waveguide; the second input waveguide is opposite to the second output waveguide. The switching speed of the optical switch can be improved, and optical loss can be reduced.
Owner:SINGAPORE SAILI TECHNOLOGY CO LTD