573 results about "Optical switch" patented technology

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

The invention provides a network topology configuration method, a communication system and related equipment, and the method comprises the steps: enabling a network controller to analyze a training task before an AI model starts distributed training, determining the traffic demand information of the training task, and transmitting the traffic demand information to the AI model; the traffic demand information comprises bandwidth demand quantity among different processors in a training process of an AI training task, network topology information of the photoelectric hybrid networking can be determined based on the traffic demand information, and then configuration information of the optical switching equipment is generated based on the network topology information. According to the invention, the configuration information of the optical switching equipment is acquired, so that the optical switching equipment can perform link switching based on the configuration information to complete topology reconstruction of photoelectric hybrid networking, the network controller can actively perform flow planning before AI model training, and the problem of long network delay caused by slow link switching speed of the optical switching equipment in the training process can be avoided.

The invention discloses an OEO amplifier with a high-speed hard switching function and an optical transmission system, and relates to the technical field of optical amplifiers, the OEO amplifier comprises three magneto-optical switches, an optical splitter group, a photoelectric detector group, a real-time comparison circuit, a logic gate control circuit and a driving circuit; the photoelectric detector group collects optical signal power to generate an electric signal; the real-time comparison circuit performs voltage threshold judgment on the electric signal; the logic gate control circuit is connected with the output end of the real-time comparison circuit so as to synchronously control the switching states of the three magneto-optical switches according to a voltage threshold judgment result; the driving circuit is used for driving the magneto-optical switch to synchronously execute a switching action; when the OEO amplifier detects that optical signals in any direction are interrupted, all the magneto-optical switches finish synchronous switching within 100 microseconds, and the end-to-end optical signal switching time difference is smaller than 2 picoseconds. The method is suitable for a single-fiber bidirectional optical communication environment requiring high frequency, high precision and high stability.

The invention discloses a parameter measuring device and method of an optical switch and optical communication equipment, and relates to the technical field of optical switch measurement, and the parameter measuring device of the optical switch comprises an optical path module, a signal conditioning circuit, a driving module, a signal acquisition module and an upper computer. The optical path module converts the optical signal into a current signal; the signal conditioning circuit conditions the signal into a voltage signal and amplifies the voltage signal; the driving module provides a driving signal and a synchronous triggering signal; the signal acquisition module acquires a voltage signal based on the trigger signal; the upper computer calculates performance parameters of the optical switch according to the voltage signals acquired for multiple times, wherein the performance parameters at least comprise two items of insertion loss, extinction ratio, switching time and the like; according to the technical scheme, one-key measurement of performance parameters such as insertion loss, extinction ratio, switching time, polarization-dependent loss, insertion-dependent loss and repeatability of the optical switch can be realized, meanwhile, the measurement cost of the optical switch is reduced, and the test efficiency and accuracy are improved.

The invention relates to the technical field of optical switches, in particular to a large-scale high-power high-speed optical switch based on a silicon-on-silicon nitride platform, which comprises a first silicon nitride waveguide, a second silicon nitride waveguide, a first optical path distribution unit and a second optical path distribution unit, the first optical path distribution unit is used for correspondingly distributing a first input optical signal into N paths of first output optical signals; the second silicon nitride waveguide is correspondingly provided with N paths of input ports; the first ends and the second ends of the N silicon waveguides are respectively connected with the output port of the first silicon nitride waveguide and the input port of the second silicon nitride waveguide; a first conversion area and a second conversion area are arranged at the joint of the silicon waveguide and the first silicon nitride waveguide and the joint of the silicon waveguide and the second silicon nitride waveguide respectively, and the corresponding conversion areas are used for achieving conversion transmission of optical signals on different waveguides. The problem that an existing optical switch is difficult to bear high power is solved.

The invention relates to the technical field of optical switches, in particular to a high-speed optical switch, which is characterized by comprising a first silicon nitride waveguide, the first silicon nitride waveguide is also provided with a first optical path distribution unit, and the first optical path distribution unit is used for correspondingly distributing a first input optical signal into corresponding N paths of first output optical signals; the first end and the second end of the silicon waveguide are respectively connected with the first silicon nitride waveguide and the second silicon nitride waveguide; the silicon waveguide is connected with a branch waveguide, and the branch waveguide is used for separating a branch optical signal with a specific proportion from a first output optical signal transmitted in the silicon waveguide; and an optical power detection unit is arranged on the branch waveguide. The problem that the optical signal of the existing optical switch is difficult to correct online is solved.

The embodiments of the present application provide a signal transmitting method and device, a non-volatile readable storage medium and an electronic device. The method includes: when a first light emitting element has acquired a first electric signal, converting the first electric signal into a first optical signal, inputting the first optical signal into a first light-switching-switch unit, and outputting the first optical signal to an outputting port of the first light-switching-switch unit via a first optical passage, wherein the first electric signal is an electric signal of a first type, and the outputting port is connected to an optical fiber; and when a second light emitting element has acquired a second electric signal, by using the second light emitting element, converting the second electric signal into a second optical signal, inputting the second optical signal into the first light-switching-switch unit, and outputting the second optical signal to the outputting port of the first light-switching-switch unit via a second optical passage in the first light-switching-switch unit, wherein the second electric signal is an electric signal of a second type.

The invention discloses a dual-optical-path keyboard with a silica gel elastic piece capable of shielding light. The dual-optical-path keyboard comprises the silica gel elastic piece and an FPC, and a plurality of chips are arranged on the FPC. And the chip is one of a full color control chip, a full load color control chip, a confluence color control chip, a load color control chip and a fantasy color control chip. The light-sensitive element is located under the silica gel elastic piece, the silica gel elastic piece is made of a light-transmitting color material and a light-shading color material, the GRB in the chip is an emission light source, one path of the GRB directly provides illumination for a key cap character, the other path of the GRB directly penetrates through the silica gel elastic piece to provide the emission light source for the light-sensitive element under the silica gel elastic piece, and one light source has two purposes. The invention provides the optical switch keyboard with serial-parallel hot standby, the communication circuit is simple, the reliability is high, a single single-sided FPC (Flexible Printed Circuit) can realize full-key no-impact and GRB indication, a keyboard MCU (Microprogrammed Control Unit) can communicate with the keyboard through a maximum 5PIN electrical network, and the optical switch keyboard can be widely applied to notebook computer production.

The invention discloses a PCB (Printed Circuit Board) capable of directly installing a double-optical-path optical axis, the double-optical-path optical axis and a keyboard, the PCB is provided with a plurality of slotted holes, the PCB is fixed with the double-optical-path optical axis through the slotted holes, each double-optical-path optical axis is correspondingly provided with a chip and a photosensitive element, and the chip is one of a full-color control chip, a color control chip, a load color control chip, a fantasy color control chip and a full-load color control chip. The double-light-path optical axis comprises a bottom shell, a spring, an upper cover, a pressing handle with a light barrier, a double-light-path light guide body and a receiving light guide body. The four chips serve as emitting light sources of the double-light-path light guide body, one chip provides an emitting light source for the light switch, the other chip provides light source for the key cap character illumination and the light sensitive element receives the emitting light source of the light switch, meanwhile, the double-light-path optical axis is directly installed on the PCB, a special shaft body fixing plate is omitted, the material cost and the assembly cost are reduced, and the keyboard height is also reduced. The assembly error between the original shaft and the PCB is naturally eliminated, and the stability and the reliability of the keyboard function are improved.

The optical module provided by the invention comprises a circuit board, a modulation driving chip, a transimpedance amplification chip and an optical chip. The optical chip comprises an optical modulation unit, an optical demodulation unit, a first optical switch assembly and a second optical switch assembly. According to the invention, the golden finger is directly and electrically connected with the modulation driving chip and the transimpedance amplification chip. The first optical switch assembly is located between the optical modulation unit and the optical chip optical port. The second optical switch assembly is located between the optical demodulation unit and the optical port of the optical chip. By changing the on-off state of the first optical switch assembly, the output path of the optical signal in the first optical switch assembly can be regulated and controlled. By changing the on-off state of the second optical switch assembly, the optical signal input path of the second optical switch assembly can be regulated and controlled. On the basis, the optical module can be switched between a normal working mode and a loopback mode by switching the on-off states of the first optical switch assembly and the second optical switch assembly. And in the loopback mode, the optical module reports an electric signal to the upper computer, so that the upper computer performs fault diagnosis.

The invention discloses an optical fiber end-to-end coverage fault positioning system based on passive optical switch cascade, and relates to the related technical field of optical fiber communication fault detection, and the system comprises a mapping construction module which builds a mapping matrix of a switch state and an optical fiber segment based on a preset switch switching sequence; the first identification module is used for injecting probe pulses in different switching states, and inverting local time delay distortion of each section by using a time delay observation set to form a first type of structural characterization; the second identification module is used for collecting the amplitude and phase sequence of the end-to-end signal, calculating the statistical distance between the end-to-end signal and the reference and projecting the statistical distance to the segment-level space to form a second type of structural representation; and the early warning module is used for carrying out damage analysis under multi-source observation and reporting fault abnormity. The technical problem that in the prior art, multiple potential degradation sections in the whole end-to-end process cannot be subjected to synchronous fine fault sensing and positioning is solved, and the technical effects that the health condition of the optical fiber link is sensed in real time through the passive cascade switch network and the fault positioning accuracy is improved are achieved.

The invention relates to the technical field of space telescope calibration, in particular to a telescope pointing calibration method based on optical fiber interconnection, which comprises the following steps: providing reference light beams in different directions, enabling each lens to correspondingly receive the reference light beams by adjusting the lens pointing, splitting the reference light beams received by the lenses through an optical splitter, and obtaining a split beam; one beam is aligned and corrected through a camera, and the other beam is coupled into an optical fiber to record direction information; the calibration light beams are reversely emitted by the optical fiber through the optical switch and are emitted by the lens, each reference light beam in the known direction is reproduced, a reference light field is formed, the telescope to be calibrated is placed in the reference light field, the miss distance of each calibration light beam in the known direction on the mirror surface of the telescope to be calibrated is measured, and the pointing error is calculated and corrected according to the miss distance. The optical fiber network is used for establishing the unique mapping relation between the space direction and the optical fiber channel, miss distance measurement is carried out through dynamic time-sharing reproduction, and the problems of mechanical accumulative errors and the like existing in a traditional mechanical calibration method are solved.

The invention discloses a thin-film barium titanate electro-optical switch unit based on a composite electrode and an array thereof. The optical switch unit comprises a first waveguide optical fiber coupling module, a second waveguide optical fiber coupling module, an optical beam splitting module, an electro-optical phase shift region, an optical beam combining module, a third waveguide optical fiber coupling module and a fourth waveguide optical fiber coupling module. Wherein the composite electrode of the electro-optic phase shift region is composed of a metal electrode and a transparent conductive layer, the electrode is closer to the waveguide by utilizing the transparent characteristic of a transparent conductive material, the coupling of a light field and an electric field is effectively enhanced, and the extinction ratio is improved. Meanwhile, a barium titanate film with a high electro-optical coefficient is adopted as a waveguide material, and the performance is further optimized, so that the electro-optical switch unit has the excellent characteristics of low-voltage driving, high extinction ratio, low insertion loss and small size.

The invention discloses a dual-optical-path optical switch keyboard comprising a light-transmitting shielding silica gel elastic sheet and taking a light guide plate as a light source. The dual-optical-path optical switch keyboard comprises the light-transmitting shielding silica gel elastic sheet, the light guide plate and a circuit board, and the chip is one of a control device chip, a control device chip, a control device chip, a control device standby device chip and a control device standby device chip. The light-sensitive element is located under the light-transmitting-shielding silica gel elastic piece, the light-transmitting-shielding silica gel elastic piece is made of light-transmitting color materials and light-shielding color materials, the LED light source of the light guide plate can provide an emitting light source in a positioning mode, one path directly provides illumination for characters of a key cap, and the other path directly provides illumination for the characters of the key cap. One path directly penetrates through the light-transmitting shielding silica gel elastic sheet to provide an emission light source for the light-sensitive element under the light-transmitting shielding silica gel elastic sheet, so that one light source has two purposes. The invention provides the optical switch keyboard with serial-parallel hot standby, the communication circuit is simple, the reliability is high, full-key non-punching can be realized, the keyboard MCU can communicate with the keyboard through a maximum 6-PIN electrical network, and the optical switch keyboard is particularly suitable for notebook computer production.

This disclosure provides an optical interconnect module, an optical interconnect device, and a computing system. The optical interconnect module includes a photonic integrated circuit chip and a transceiver chip. The photonic integrated circuit chip includes a first optical switching section and a second optical switching section. The first optical switching section includes a plurality of first optical switching input ports, a plurality of first optical switching output ports, a plurality of second optical switching output ports, and a plurality of third optical switching output ports. An optical signal input from each first optical switching input port is selectively output from a corresponding one of the plurality of first optical switching output ports, a corresponding one of the plurality of second optical switching output ports, or a corresponding one of the plurality of third optical switching output ports. The second optical switching section includes a plurality of second optical switching input ports and a plurality of fourth optical switching output ports, each of the plurality of second optical switching input ports being connected to a corresponding one of the plurality of first optical switching output ports.

An optical arrangement includes a first optical component configured to split an input beam into two orthogonally polarized beams including a first polarized beam and a second polarized beam directed along first and second optical paths, respectively; a second optical component configured to receive the second polarized beam, rotate a polarization of the second polarized beam to produce a third polarized beam, and direct the third polarized beam further along the second optical path; and a prism arrangement that includes a first prism section including a first pair of optically coupled interfaces configured to redirect the first polarized beam, at a first redirection angle, along a redirected path segment of the first optical path; and a second prism section including a second pair of optically coupled interfaces configured to redirect the third polarized beam, at a second redirection angle, along a redirected path segment of the second optical path.

The invention discloses a detection equipment data synchronization method and device based on optical pulse coding counting. The method comprises the following steps: collecting a pulse signal output by a pulse encoder; the pulse encoder is mounted on the detection vehicle; according to a preset frequency division coefficient, performing frequency division on the pulse signal to generate frequency division pulse signals corresponding to the number of frequency division pulses; the preset frequency division coefficient is determined according to the sampling interval requirement of each detection device; the detection equipment is mounted on the detection vehicle; the number of the frequency division pulses corresponds to the number of the detection devices; the frequency division pulse signals corresponding to the frequency division pulse number are input into an optical switch for photoelectric signal conversion, and optical signals corresponding to the detection equipment are generated; according to the optical signal, detection data synchronization is carried out on the detection equipment corresponding to the optical signal, the accuracy of data synchronization of the detection equipment can be improved, and resource waste is avoided.

A method and system for optical switching with integrated polarization diversity control comprising a beam displacer to receive an input beam and split the input beam into a first beam and a second beam with linear polarization. The first and second beams may be received on a liquid crystal cell that may rotate the first or second beam so that both beams have the same polarization after traversing the liquid crystal cell. Based on the polarization, the output beam may be switched to a port.

Aspects of this disclosure concern controllers and control methods for transitioning a group of optically switchable devices. Such devices are often provided on windows such as architectural glass. In certain embodiments, the methods transition multiple optically switchable devices that are positioned in proximity as a group. The methods apply different drive voltages to different devices in a group. In these or other cases, a group of optically switchable devices may transition together over a particular duration to achieve approximately uniform tint states over time during the transition without slowing down transitioning of faster optically switchable devices in the group.

The present invention increases the number of simultaneously usable optical paths among optical paths formed between a plurality of optical switches, and improves the utilization efficiency of the entire facility. This optical switch (SW) comprises a plurality of input ports (Q1 to Q3) and a plurality of output ports (P1 to P3). The plurality of input ports are disposed at equal intervals around a rotation axis (AS) and the plurality of output ports are disposed at equal intervals around the rotation axis. Combinations of connections between the input ports and the output ports are switched by rotation around the rotation axis. The plurality of input ports and the plurality of output ports are simultaneously connected and an optical signal propagates between the connected input ports and output ports.

The embodiment of the invention provides an automatic test calibration method and system for high-precision optical fiber time synchronization equipment. The method comprises the following steps: acquiring a test task of target test equipment; a test instruction set is generated based on the test task, so that an optical switch is controlled to be switched on or switched off according to a corresponding rule through the test instruction set, and in the execution stage of the test instruction set, to-be-measured information is collected so as to determine the completion degree of the target test equipment for the test task according to the to-be-measured information, the execution stages of the to-be-measured instruction set and the test instruction set have an association relationship. According to the scheme, the personalized instruction set can be generated according to different test tasks, full-process automatic testing is achieved, rapid testing of batch equipment can be supported, measurement errors caused by the manual intervention link are omitted, and therefore the test efficiency and the test precision are improved.

The application discloses a kind of parameter measuring device of optical switch and method, optical communication equipment, it is related to optical switch measurement technical field, the parameter measuring device of optical switch includes optical path module, signal conditioning circuit, drive module, signal acquisition module and host computer;Optical path module converts optical signal into current signal;Signal conditioning circuit is conditioned as voltage signal and amplifies;Drive module provides driving signal and synchronous trigger signal;Signal acquisition module is based on trigger signal and collects voltage signal;Host computer calculates the performance parameter of optical switch according to voltage signal collected multiple times, and performance parameter at least includes two items in insertion loss, extinction ratio, switching time etc.;The technical scheme of the application can realize the one-key type measurement of the performance parameter such as insertion loss, extinction ratio, switching time, polarization dependent loss, insertion dependent loss and repeatability of optical switch, while reducing the measurement cost of optical switch, improve test efficiency and accuracy.

The application relates to the technical field of laser lighting, in particular to a non-electric manual laser switch and a using method thereof, and aims to solve the problems of poor explosion-proof performance, high laser leakage risk, large coupling loss and stray light interference of an existing laser switch. The switch is connected in series between a light fiber at a light emitting end of a laser and a light fiber at a receiving end of a lighting system, and comprises a manual operating mechanism, a double-lens assembly, a high-precision positioning pin, a light cone assembly, a stray light protection piece and a shell. The switch realizes light path on-off through pure mechanical manual operation. When the switch is turned on, the double lens is accurately aligned through the positioning pin, and laser is coupled and transmitted with low loss. When the switch is turned off, the light cone absorbs laser on the laser side, and the stray light protection piece blocks external stray light. The switch does not have any electrical components, meets the Exd IIC T6 explosion-proof grade, has a coupling loss of less than or equal to 0.2 dB, has laser leakage of less than or equal to 0.01 mW when turned off, is suitable for environments of-40 DEG C to 85 DEG C, and is suitable for explosion-proof scenes such as natural gas pipe corridors and chemical industrial parks. The switch is convenient to operate and has a long service life.

The utility model discloses a game controller of using optical switch, including control panel, be equipped with NPN triode on the control panel, be equipped with optical switch subassembly and control mechanism on the control panel, optical switch subassembly includes several groups with the optical pair tube signal connection of NPN triode, the utility model is based on optical principle, installs through the mode of relative arrangement to multiple optical pair tubes, and each optical pair tube signal connection NPN triode constructs unique optical switch system, realizes the stable control function of shading conduction, light-off disconnect through the control of shading plate movement, abandon traditional optical switch setting light-off hole and so on structure, make light signal stability better, and the controllable range is bigger, and the reaction is more sensitive. Utilize optical signal transmission and NPN triode direct participation circuit response, improve the opening and closing speed, can satisfy the operation demand of high frame rate, fast rhythm game, and when using, is not influenced by temperature and magnetic field change, effectively guarantee the accuracy and stability of switch triggering.

In some embodiments, there may be provided a systems, methods, and articles of manufacture that learn, by the machine learning model and based at least on the at least one traffic matrix, a first output indicative of at least one deflection routing parameter and a second output indicative of at least one optical switch configuration, wherein the learning jointly determines the first output indicative of at least one deflection routing parameter and a second output indicative of at least one optical switch configuration; provide the first output indicative of the at least one deflection routing parameter to a network management system to configure at least one aggregation node comprised in a directly interconnected data center; and provide the second output indicative of the at least one optical switch configuration to the network management system to configure at least one optical switch comprised in the directly interconnected data center.

This invention discloses a multi-channel programmable miniaturized high-speed FBG demodulation system and method based on an AWG (Optical Fiber Optic Generator), belonging to the field of fiber optic sensing technology. The AWG-based multi-channel programmable miniaturized high-speed FBG demodulation system includes a high-stability broadband light source module, a low-loss isolation module, a miniaturized programmable fiber optic amplifier, a circulator, a two-stage miniaturized high-speed optical switch, a high-crosstalk AWG module, a photoelectric conversion module, a programmable A / D conversion module, and a core control module. The AWG-based multi-channel programmable miniaturized high-speed FBG demodulation method involves the optical signal entering an FBG sensor array, the FBG sensor reflecting the optical signal, the reflected optical signal entering the AWG module, and the output light undergoing photoelectric conversion to calculate the center wavelength of the FBG sensor. This invention, based on an AWG, improves demodulation accuracy while ensuring the demodulation range, achieving continuous wavelength demodulation within the AWG wavelength range.

The embodiment of the invention provides an optical modulator, a wavelength selection switch, a port-level optical switch, an optical cross connection and an optical communication system, and aims to reduce insertion loss in an optical switching process. In the optical modulator provided by the invention, an included angle is formed between a first surface of a first substrate and a second surface of a second substrate, and a liquid crystal layer is located between the first substrate and the second substrate, so that an included angle is formed between an incident light beam of a signal light beam irradiating the optical modulator and an emergent light beam emitted from the optical modulator; the first substrate is provided with a first electrode layer, the second substrate is provided with a second electrode layer, the refractive index of the liquid crystal layer is changed by adjusting the first electrode layer and the second electrode layer to generate electric fields with different intensities, the included angle between the incident light beam and the emergent light beam is further adjusted, and the signal light beam is emitted to a target output port; deflection of the signal light beams is achieved through the refraction principle, the insertion loss of the signal light beams in the optical modulator is reduced, and then the insertion loss in the optical switching process is reduced.

The invention discloses a width gradient tungsten disulfide nanobelt, a preparation method thereof and an application of the width gradient tungsten disulfide nanobelt in a self-driven photoelectric detector, a Ni film is deposited on a substrate and is annealed to form catalytic particles, and a chemical vapor deposition system is utilized to accurately control the temperature gradient between tungsten trioxide in a central temperature zone and a growth substrate in a downstream temperature zone, so that the width gradient tungsten disulfide nanobelt is obtained. And the solid sulfur source is propelled at a constant rate, the dynamic change of the sulfur / tungsten atomic ratio in the reaction environment is regulated and controlled, and a growth mode is guided to be converted from a gas-liquid-solid mechanism to a gas-solid mechanism, so that controllable preparation of the tungsten disulfide nanobelt with the width continuously and progressively decreased in the axial direction is realized. The width of the nanobelt gradually changes from 150-500 nm to 50-120 nm, the length of the nanobelt reaches 3-12 [mu] m, and the nanobelt has an armchair edge and a 3R phase stacking structure. A self-driven photoelectric detector constructed based on the nanobelt realizes high-sensitivity detection of 532 nm laser under zero bias voltage, the responsivity reaches 5.04 A / W, the detectivity reaches 3.23 * 10 < 12 > Jones, and the nanobelt shows important application value in the fields of optical signal detection, optical switches and wireless optical communication.