289 results about "Optical control" patented technology

The invention provides an adjustable spectrum-based liquid crystal display system and a control method thereof, relates to the technical field of display systems, and aims to overcome the limitations of poor environmental adaptability, easiness in causing visual fatigue, single user experience and the like of an existing display. The system creatively integrates a liquid crystal panel, a high-precision multi-main-color Micro-LED backlight, a pixel inner sensing array, an external multi-mode sensing module, a dynamic addressable micro-optical array, a dynamic polarization modulation layer and an optional transparent energy collection layer. The intelligent controller carries out fusion processing on the real-time biological state, environment information and application context data of the user obtained by the multi-source sensor, and carries out accurate state evaluation and future trend prediction. And determining an optimal space-time-direction-spectrum-polarized light field output characteristic and an intelligent energy management strategy through a multi-objective optimization decision engine, and driving each optical regulation and control component to execute in real time. The visual comfort and health level are remarkably improved, and the information fidelity and task performance in a complex environment are ensured.

Electro-absorption modulators (EAM) and monolithically integrated electro-absorption modulated lasers (EML) and methods of fabrication are disclosed. Vertically stacked waveguides for a distributed feedback (DFB) laser, an electro-absorption modulator (EAM) and a passive output waveguide are vertically integrated, and the DFB laser, EAM and output waveguide are optically coupled using laterally tapered vertical optical couplers. Laterally tapered vertical optical couplers provides an alternative to conventional butt-coupling of a laser and EAM, offering improved reliability for high power operation over extended lifetimes. Optionally, the EML comprises monolithically integrated electronic circuitry, e.g., driver and control electronics for the DFB laser and EAM. Beneficially, integrated EAM driver and control circuitry comprises a high-speed electro-optical control loop for very high-speed linearization and temperature compensation, e.g. to enable advanced modulation schemes, such as PAM-4 and DP-QPSK, for analog optical data center interconnect applications. Some embodiments are compatible with fabrication using a single epitaxial growth.

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.

An optical modulator with which electrical connection between a signal electrode and signal wiring of a wiring substrate can be reliably made even in a case where a width of the signal electrode in an action portion of an optical control substrate is narrow is provided. An optical modulator includes an optical control substrate (1) that includes an optical waveguide (OW) including at least a branched waveguide which branches one light wave into two light waves, and that includes a control electrode for applying an electrical field to the branched waveguide, and a wiring substrate provided with a wiring which relays an electrical signal to be applied to the control electrode or with a wiring which terminates the electrical signal, in which the control electrode is provided with a signal electrode(S), the wiring is provided with signal wiring, and in a part (Sc) in which electrical connection is made between the signal electrode(S) and the signal wiring, a clearance (W1) in which the branched waveguide (OW) sandwiches the signal electrode is wider than a clearance (W2) in which the branched waveguide sandwiches the signal electrode in an action portion in which the control electrode applies the electrical field to the branched waveguide.

The invention discloses a biological experiment automatic touch-free adding system based on optical control and an operation method thereof, and relates to the technical field of biological experiment equipment, the system comprises the following components: an optical marking module, an optical imaging and detection module, an optical control module and an automatic control module; high automation of biological experiments is realized by integrating a plurality of modules including optical marking, optical imaging and detection, optical control and automatic control, efficient and stable marking of biological samples is ensured by utilizing specific marking of a quantum dot solution and combining accurate control of a microfluidic channel in the optical marking stage, and then, the accuracy of the biological samples is ensured. Through advanced equipment such as a high-resolution fluorescence microscope and an optical spectrum analyzer, the system can accurately obtain optical information of a marked biological sample, a solid foundation is provided for subsequent control and recognition, in the optical control stage, the optical tweezers system achieves accurate control over the biological sample in a touch-free mode, and the accuracy of the biological sample is improved. Pollution and damage possibly caused by traditional physical contact are avoided.

The invention relates to the technical field of optical control, in particular to a micro-nano particle optical control method and device based on circularly polarized light. The invention aims to solve the problem of insufficient flexibility of optical control. The optical control method comprises the following steps: pre-processing micro-nano particles to be controlled; the initial Gaussian beam is processed into a circular polarization tube type beam through a beam shaping module, a light guiding module and a polarization regulation and control module, and the micro-nano particles are irradiated from the position above the gas-liquid interface according to a preset mode; by adjusting the polarization regulation and control module and the light guide module, the motion direction, the motion speed and the stop position of the micro-nano particles are optically controlled. The optical control device comprises a control platform module, a laser emitting module, a light beam shaping module, a light guiding module, a polarization regulation and control module and an imaging monitoring module.

Purely optically controllable switching device for purely optical control of the current flow in a line (LTG), wherein the purely optically controllable switching device comprises a line (LTG) and where one line (LTG) comprises a first line section and wherein one line (LTG) includes a second line section that is different from the first line section and does not overlap, and wherein the purely optically controllable switching device comprises an optically controllable switch (T2) and wherein the purely optically controllable switching device comprises one or more purely optical sensor elements (SE) and wherein the optically controllable switch (T2) is positioned in the line (LTG) between the first line section and the second line section and wherein the optically controllable switch (T2) in an “on” state electrically connects the first line section of the line (LTG) with the second line section of the line (LTG) and wherein the optically controllable switch (T2) in an “off” state electrically separates the first line section of the line (LTG) from the second line section of the line (LTG) and wherein an optical switching signal (SB) determines which of these two states, "On" state or "Off" state, the optically controllable switch (T2) assumes, and wherein the respective purely optical sensor element (SE) of the one or more purely optical sensor elements (SE) comprises a respective carrier material (TM) with respective crystals comprising one or more respective paramagnetic centers (NV), and wherein the respective purely optical sensor element (SE) of the one or more purely optical sensor elements (SE) emits a respective fluorescence radiation (FL) when irradiated with respective pump radiation (LB), which depends on the respective magnetic flux density B at the respective location of the respective purely optical sensor element (SE), and wherein the respective purely optical sensor element (SE) of the one or more purely optical sensor elements (SE) is positioned relative to the first line section such that a line current (I LTG) in the first section of the line (LTG) a magnetic field with a respective flux density B is generated at the respective location of the respective purely optical sensor element (SE), such that, at sufficient current strength, one or more respective paramagnetic centers (NV) of the respective purely optical sensor element (SE) influence the respective fluorescence radiation (FL) of these one or more respective paramagnetic centers (NV) of the respective purely optical sensor element (SE) in a specific respective way with respect to the respective purely optical sensor element (SE), characterized by that the purely optically controllable switching device has first respective means (LWL1, PL1, LIV) assigned to the respective purely optical sensor element (SE) for irradiating the one or more respective paramagnetic centers (NV) of the respective purely optical sensor element (SE) with respective pump radiation and that the purely optically controllable switching device second means (LWL2, F1, PD, LIV) which are assigned to the respective purely optical sensor element (SE), - for detecting and separating the respective fluorescence radiation (FL) of the one or more respective paramagnetic centers (NV) of the respective purely optical sensor element (SE) and - for the acquisition of a respective measurement signal, which depends on the respective intensity of the respective fluorescence radiation (FL) of the respective paramagnetic centers (NV1) of the respective purely optical sensor element (SE) and / or on the respective phase shift Δt of the respective modulation signal of the respective temporal course of the respective intensity of the respective fluorescence radiation (FL) of the respective paramagnetic centers (NV1) of the respective purely optical sensor element (SE) relative to the respective modulation signal of the respective temporal course of the respective intensity of the respective pump radiation (LB) irradiating the respective paramagnetic centers (NV1) of the respective purely optical sensor element (SE), or relative to a signal associated with this respective signal (e.g., respective transmit signal S5) and / or its respective temporal course, - wherein the respective first means and respective second means may comprise common respective device parts (LWL1, LWL2) relating to a respective purely optical sensor element (SE) individually and / or relating to several purely optical sensor elements (SE) depending on the application, and that the purely optically controllable switching device has third means (LIV) to generate an optical switching signal (SB) and to control the state of the optically controllable switch (T2) with this optical switching signal (SB) and that the optical switching signal (SB, SB') is derived from one or more respective intensities of one or more respective fluorescence radiation (FL, FL') of the respective paramagnetic centers (NV1, NV1') of one or more purely optical sensor elements (SE, SE') and / or from one or more respective phase shifts Δt of one or more respective modulation signals of one or more respective time profiles of one or more respective intensities of one or more respective fluorescence radiation (FL, FL') relative to one or more respective modulation signals of one or more respective time profiles of one or more respective intensities of one or more respective pump radiation (LB, LB') or relative to one or more respective signals associated with one or more respective signals (e.g.,depends on the transmission signals S5, S5') and / or their respective temporal progressions.

The invention relates to the technical field of optical control, and discloses a laser multi-beam etching control method, device and equipment for pole piece lineation, and the method comprises the steps: obtaining an etching specification and an etching material, and determining the installation position of a lens group based on a preset laser conduction length, an etching length and an etching path; controlling the light path system to position each transflective lens according to the mounting position of the lens group, correspondingly arranging a collimation focusing group on the lower side of each transflective lens, and determining the etching speed of a focusing head in each collimation focusing group based on the etching depth and width and the material etching attribute corresponding to the etching material, each focusing head is controlled to etch the target material according to the corresponding etching speed, non-contact processing can be provided, the etching line width is small, meanwhile, the high stability and accuracy are guaranteed, a large-breadth pole piece product is compatible, the processing breadth and the pole piece lineation width are not limited by a focusing field lens any more, and the production efficiency is improved. The production efficiency is ensured; and meanwhile, the cost and the later maintenance cost are reduced.

The invention discloses a naphthyl derivative for regulating and controlling photoresponse through thermal phase change as well as a preparation method and application of the naphthyl derivative. The naphthyl derivative is (2Z, 4E)-2-(3-chlorphenyl)-5-(7-(dimethylamino) naphthalene-2-yl) pent-2, 4-diphenyl nitrile, the naphthyl derivative can be crystallized in a solvent to obtain a Y crystal form, the Y crystal form shows light inertia and can generate unique SCSC phase change when being heated to be close to a melting point, the Y crystal form can be converted into a photosensitive Y conversion crystal form through the thermal phase change, and the Y conversion crystal form can be used for preparing a photosensitizer. And conversion from light inertia to light sensitivity is realized. The Y transformation crystal form can also be obtained through solvent method crystallization. The Y transformation crystal form is combined with PVA to prepare the composite film, and the obtained composite film can be bent and twisted without influencing the light response performance, and is expected to be used for an optical brake. The surface of the composite film is further coated with conductive silver paste, so that the composite film has conductivity, and then the composite film is connected into a patch circuit to be made into a light-operated switch which is expected to be applied to the fields of molecular robots and the like.

Provided is an optical control element capable of arranging an input portion and an output portion of an optical waveguide on the same side of a substrate in which the optical waveguide is formed, and capable of reducing differences in the configuration of each branch waveguide while minimizing optical path differences between branch waveguides. The optical control element has a substrate (1) having an electro-optic effect, an optical waveguide (2) formed in the substrate, and a control electrode that controls an optical wave propagating in the optical waveguide, characterized in that an input portion (incident light (L1)) and an output portion (emitted light (L2)) of the optical waveguide are formed on the same side of the substrate, the optical waveguide has at least one Mach-Zehnder type optical waveguide portion (MZ) having two branch waveguides (21, 22) branched from one optical waveguide and recombining the two branch waveguides to form one optical waveguide, and the branch waveguides have an even number of return portions (A1, A2).

Industrial camera (20) which includes the following: - a camera body or camera housing (22) which carries image sensors (24) inside and is suitable for connecting an optical system (26); - a printed circuit board (28) housed in the camera body; - a first electrical connector (30) which is carried by the camera housing and is electrically connected to the printed circuit board (28), wherein: - the printed circuit board (28) comprises: at least one first circuit section (28a-28e) configured to accommodate electronic components for optical control or regulation, which serve to control or regulate a deformable optical element (32), and at least one second circuit section (28f-28i) configured to accommodate electronic interface components implementing a serial interface, - some pins of the first electrical connector (30) are connected to both the at least one first circuit section and the at least one second circuit section, so that control outputs of the deformable optical element (32) and control outputs of the serial interface can be implemented alternately.

The invention belongs to the technical field of biochemical sensing, and particularly relates to an optical-mechanical gas sensor based on a graphene annular microcavity. According to the sensor, a high-sensitivity and low-noise gas detection platform is constructed by combining a high-quality-factor annular microcavity with single-layer graphene; the sensor excites the boundary of the cavity to generate optical mechanical vibration by utilizing radiation pressure generated by propagation of photons in the microcavity; a phonon laser signal with stable frequency and extremely low noise is formed under the continuous action of the pump light; after target gas molecules are adsorbed by graphene, effective mass change of the microcavity is caused, measurable deviation of phonon laser frequency is caused, and therefore real-time high-sensitivity detection of gas concentration is achieved. The optical-mechanical interaction mechanism, the two-dimensional material gas adsorption characteristic and the microcavity optical regulation and control technology are fused, and the device has the advantages of being high in response speed, low in detection limit, easy to integrate and the like and is suitable for multiple scenes such as environment monitoring, biochemical analysis and industrial safety.

The invention discloses an automatic tuning and calibration method and system for a crystal resonator, and relates to the technical field of automatic control. Comprising the following steps: S1, generating a multi-physics field coupling matrix: constructing three-dimensional space distribution of an electromagnetic-mechanical-thermal coupling field through a quantum dot sensor array, and generating the multi-physics field coupling matrix; s2, determining a compensation amount: determining time-varying characteristic parameters in the magnetic component, the mechanical component and the thermal component, constructing a nonlinear multi-body coupling state equation, and determining the corresponding compensation amount; and S3, multi-dimensional cooperative compensation: respectively carrying out mechanical compensation, capacitance compensation and light-operated tuning, and carrying out cooperative compensation through multiple actuators. According to the method, modeling is performed through high-precision three-dimensional space distribution of multiple physical fields, and the interaction of electromagnetic coupling, mechanical coupling and thermal coupling is quantified through the obtained total coupling strength among the resonators, so that the defect that the multi-body effect is ignored in a traditional method is overcome.

The invention discloses an energy-saving dimming assembly and a manufacturing method, and relates to the technical field of building energy-saving facilities, and the energy-saving dimming assembly is sequentially provided with a first transparent layer, a second transparent layer, a third transparent layer and a fourth transparent layer from outside to inside, the temperature response functional layer comprises a mixture of at least two thermochromic high polymer materials and is configured to realize adjustment of light transmittance in a preset temperature interval; the second transparent layer is used for supporting the temperature response functional layer; and an optical regulation and control layer configured to have a low-radiation characteristic in a long-wave infrared region. According to the invention, the transmittance of visible light and infrared light of the window can be changed along with the change of temperature at 20-38 DEG C. Meanwhile, programmed adjustment of the corresponding temperature response interval can be achieved through temperature change; and the gradual change of the transmittance of visible light and infrared light can be regulated and controlled in a programmed manner through the temperature change, so that the effects of regulating the indoor brightness and temperature and protecting the visual comfort of a user are realized, and the aim of saving energy is fulfilled.

The invention discloses an atomic sensing laser collimation rounding method based on a function multiplexing metasurface. Through the metasurface phase regulation and control technology, a metasurface unit library meeting the collimation phase configuration requirement and circular polarization combined regulation and control is designed, and dual-function integration of collimation of emergent light of the atomic sensing laser and conversion from linear polarization to circular polarization is achieved. A highly circularly polarized collimated light beam is provided for atom system comprehensive polarization through a single-layer metasurface device. According to the technology, the size of a pumping light path in an atom sensing system can be remarkably reduced, the integration degree of a collimation circular polarization light path system is improved, and the technology is suitable for the optical regulation and control requirement of a miniaturized chip atom sensor.

The present invention discloses a double-layer thin film structure all-optically controlled memristor device and a preparation method thereof, wherein the all-optically controlled memristor device is composed of SiO 2 Substrate, inert electrode, ZnO thin film layer, MoO x Thin film layer and transparent electrode, the ZnO thin film layer and MoO x The thin film layers together form the photoelectric memristor layer of the all-optically controlled memristor device, forming a heterojunction structure with a certain barrier width. The all-optically controlled memristor device of the present invention can be controlled by adjusting the ZnO / MoO x The barrier width of the heterojunction can realize the reversible activation and inhibition of light gating under the regulation of ultraviolet light and green light. The all-light-controlled memristor device of the present invention is a two-terminal device with simple structure, easy preparation and integrability. The reversible regulation of ultraviolet light and green light can realize the reversible modulation of the device under all-light control. It has good application potential in the research of visual perception storage and computing technology.

The invention discloses a network system, a networking protection method of the network system and optical control equipment, and belongs to the technical field of communication, and the network equipment carries out networking between the optical control equipment and the network equipment, and provides a looped network for the network equipment through an optical switch array in the optical control equipment. Optical signals between network devices can be transmitted through the looped network, devices such as a 1: N passive optical splitter and a burst device do not need to be used, and therefore the networking cost of a network system is reduced.

The invention belongs to the technical field of photoelectricity, and relates to a miniaturized multifunctional laser module and a light path control method thereof, and the structure of the miniaturized multifunctional laser module sequentially comprises a laser module which comprises a laser and a light beam shaping device along the same optical axis direction; the optical control module comprises a polarization splitting prism and a spectroscope; the light path protection and adjustment module comprises a Faraday isolator, a high-speed shutter and an attenuation wheel; and the optical fiber coupling module comprises a collimating lens, a precise adjustment platform and a single-mode polarization maintaining optical fiber, the laser generates a light beam, and after light beam shaping, polarization adjustment, 99: 1 light splitting and protection adjustment, the optical fiber coupling module outputs a stable optical fiber signal. The technical problems that in the prior art, a laser is poor in polarization control and power stability, low in high-speed switch response speed and high in spectrum switching function cost are solved, polarization adjustment, light splitting, protection adjustment and efficient optical fiber coupling functions are achieved in the same light path after light beams are generated, and the laser is suitable for various high-precision optical application scenes.

The invention relates to the technical field of optical systems, in particular to a micro-nano particle self-assembly and optical control method and device based on a vector light field. The purpose of the invention is to improve the precision of controlling the micro-nano particles. The first purpose is to provide a micro-nano particle self-assembly and optical control method based on a vector light field, and the method comprises the steps: carrying out the combined regulation and control of the orbital angular momentum and polarization state of a linear polarization Gaussian beam through a light field regulation and control assembly, so as to enable the linear polarization Gaussian beam to be converted into a high-order Poincare vector light field with a spatial polarization distribution characteristic; the vector light field is collimated, reflected and focused through the light guiding assembly, so that the vector light field acts on the micro-nano particles, and the micro-nano particles are self-assembled to form a self-assembled structure; and the rotation direction and the rotation speed of the self-assembly structure are regulated and controlled through the light field regulation and control assembly. The second purpose is to provide a micro-nano particle self-assembly and optical control system based on a vector light field.

The invention relates to the technical field of intelligent cabins, in particular to a vehicle-mounted active noise reduction and variable privacy glass integrated regulation and control system and method.According to the system, vehicle environment and state signals are collected through a signal sensing module, fusion analysis is conducted through a cooperative control module, and a current operation scene is judged based on a safety priority rule; and a cooperative control instruction is generated to drive the integrated execution module. The execution module integrates active noise reduction, glass dimming and partition acoustic isolation functions, and intelligent linkage of optical regulation and control, acoustic noise reduction and voice privacy can be achieved in different scenes such as parking, high speed and VIP. According to the method, the problem that all functions run independently and cannot respond cooperatively in the prior art is solved, and quietness, privacy and overall comfort in the vehicle are remarkably improved.

The present application relates to the technical field of electro-optical control. The present application provides an electro-optical pod-based method for correcting an IMU installation misalignment angle in a geographic tracking mode. In embodiments of the present disclosure, online calibration is performed by continuously correcting a target geographic tracking result by means of image-derived line-of-sight angle calculation, thereby enabling an electro-optical pod to achieve more accurate target positioning and geographic tracking during a calibration flight; moreover, storing the calibrated installation misalignment angle ensures target positioning and geographic tracking effects in subsequent flights, thereby significantly improving the execution efficiency of flight missions.

The invention relates to the technical field of spectral analysis, in particular to a knapsack type laser-induced breakdown spectroscopy analysis system which comprises a laser, an optical control system, a probe, a spectrometer, an industrial personal computer, a sample to be detected and a knapsack, and the laser, the spectrometer and the industrial personal computer are all arranged in a main bin of the knapsack. The industrial personal computer is electrically connected with the laser, the optical control system and the spectrograph, one side of the backpack main bin is connected with a handheld probe, and the optical control system is arranged in the probe; laser emitted by the laser enters the optical control system to be focused, the focused laser is output from the probe and is used for burning a to-be-detected sample, plasma radiation generated by the to-be-detected sample is received by the probe and is transmitted to the spectrograph, and the spectrograph is used for completing spectrum detection and transmitting a detection result to the industrial personal computer; and the industrial personal computer performs qualitative and quantitative analysis on elements contained in the to-be-detected sample according to the detection result. The invention provides a portable spectral analysis system.

The invention discloses a near-field radiant heat rectifier based on a high-frequency photoelectric effect, and belongs to the technical field of radiant heat transport regulation and control. The invention aims to solve the problems that an existing magneto-photo-thermal rectification scheme depends on a strong magnetic field, the size is large, integration is difficult, and electromagnetic interference exists. The invention provides a near-field radiant heat rectifier based on a high-frequency photoelectric effect. The near-field radiant heat rectifier comprises a heat emission layer, an emission end time modulation layer, a receiving end time modulation layer, a heat receiving layer and a nanometer displacement platform. A nanoscale vacuum gap is kept between the photoelectric modulation layers of the transmitting end and the receiving end through a nanometer displacement platform, and dielectric constants of the photoelectric modulation layers are subjected to high-frequency periodic modulation through a dual-mode integrated laser. The modulation phase difference is utilized to break the system time reversal symmetry, and an artificially synthesized magnetic field is introduced to realize near-field radiation heat rectification. The device has the advantages of compact structure, full light control, no magnetic interference and the like, and is suitable for being applied to practical engineering scenes of microelectronic heat dissipation, waste heat recovery, thermal logic circuits and the like.

The invention relates to the technical field of precision optical control, in particular to a sum-difference mode cooperative control double-actuator visual axis stable imaging method and system, and the method comprises the steps: calculating a sum mode variable and a difference mode variable between the angular velocity information of a first actuator and the angular velocity information of a second actuator; performing inverse mode transformation on the two mode variables to obtain independent control commands for respectively controlling the first actuator and the second actuator; the two independent control commands are correspondingly input into the first actuator and the second actuator after being processed through a control algorithm based on data driving. The ultra-high precision of the two actuators is effectively combined, stable control over the optical axis of the optical imaging system is achieved, and the imaging definition and stability of the optical imaging system in the disturbance environment are remarkably improved.

The invention provides a vehicle-mounted optical fiber communication system and method and a vehicle. The vehicle-mounted optical fiber communication system comprises a main controller, a regional gateway, terminal equipment, a backbone network and an access network, the backbone network and the access network carry out signal transmission based on optical fibers; the backbone network comprises a control signal transmission channel and a data signal transmission channel; the main controller is used for sending an optical control signal to the regional gateway through the control signal transmission channel and sending a first optical data signal to the regional gateway through the data signal transmission channel; and the regional gateway is used for receiving the optical control signal and the first optical data signal, receiving a second optical data signal sent by the terminal equipment through the access network, and sending the second optical data signal to the main controller through the data signal transmission channel. Therefore, high-speed data communication between the slave master controller and the terminal equipment is realized, the data communication rate of the vehicle is improved, and actual use requirements can be met.

An optical network element for a hardware configured optical network includes a first optical port that receives an input optical signal comprising receive control information from the hardware configured optical network. A demodulator optically coupled to the first optical port decodes the receive control information for configuring the optical network element. A modulator having an electrical modulation input that receives transmit control information imparts a modulation onto an optical carrier thereby generating a transmit optical control signal representing the transmit control information. A second optical port transmits the transmit optical control signal representing the transmit control information to the hardware configured optical network.

The application provides a demodulation system and method of a strong-weak fiber grating hybrid network, which comprises: an upper computer for generating an optical control signal, a modulation control signal and a signal collection signal; an optical signal generation unit for outputting a sweep continuous light signal in response to the optical control signal; a fiber splitter for dividing the sweep continuous light signal into a first continuous light signal and a second continuous light signal; a pulse modulation unit for modulating the first continuous light signal to obtain a pulse light signal in response to the modulation control signal; a weak fiber grating sensing module for generating a first electric signal based on the pulse light signal; a strong fiber grating sensing module for generating a second electric signal based on the second continuous light signal; and the upper computer for positioning and demodulating the first electric signal and the second electric signal in response to the signal collection signal. The application realizes the demodulation of the strong-weak fiber grating hybrid network by a single system, and can simultaneously perform a large-capacity, long-distance sensing task and a single-point sensing task.

The invention discloses a high-efficiency semitransparent perovskite battery and a preparation method thereof, and belongs to the technical field of batteries. The solar cell comprises a packaging layer, an optical regulation and control layer, a transparent top electrode, a hole transport layer, an interface passivation layer, an activation layer and a substrate from top to bottom, the activation layer comprises Gua (0.05), Cs( 0.05), FA (0.7), MA (0.15), Pb (0.8), Sn (0.2) (I (0.77), Br (0.23) 3), and the thickness of the activation layer And the transparent top electrode comprises ITO (indium tin oxide) / AgNWs / F-IWO (indium tin oxide) of 200 to 300 nm. Visible light transmission and near-infrared absorption are balanced through a B / proportional band gap, Gu inhibits perovskite grain boundary migration and Sn < 2 + > oxidation, a transparent top electrode is ITO / AgNWs / F-IWO, AgNWs reduce sheet resistance, F-IWO improves near-infrared light transmission and prevents Ag oxidation, and the contradiction between PCE and AVT and the defects of a traditional electrode are overcome.

An optical network includes a plurality of variable ratio coupler (VRC) devices. Each VRC device includes an input, a main output, and a branch output, a VRC, an actuator operable to control the VRC to vary a split ratio of the VRC, a wavelength division multiplex (WDM) filter positioned within the branch output and includes a common port, a transmit port and a reflect port. The WDM filter is operable to pass a control wavelength at the transmit port and a filtered optical signal at the reflect port, and a controller operable to receive an optical control signal from the WDM filter and control the actuator to manipulate the VRC to a desired split ratio. The input, the main output and the branch output of the plurality of VRC devices are coupled such that the plurality of VRC devices is arranged in a branching network having a plurality of levels.

An organic light emitting display apparatus includes a substrate; a plurality of organic light emitting elements disposed on the substrate; an optical control layer disposed on the plurality of organic light emitting elements; and a light guide member on the optical control layer; wherein the optical control layer includes a black matrix disposed at a boundary of adjacent organic light emitting elements among the plurality of organic light emitting elements; and wherein the light guide member includes a plurality of lens patterns having an irregular arrangement structure and a first refractive index; and a refractive layer disposed on the plurality of lens patterns and having a second refractive index different from the first refractive index.