Abstract: Embodiments of this application disclose a laser frequency modulation method and device, a storage medium, and a laser device. The method includes: obtaining the current sweep mode of the laser device in a timing manner; when the current sweep mode is the single-band sweep mode, controlling the laser device to perform continuous sweeping on the preset band; and when the current sweep mode is the multi-band switching mode, obtaining the next band for the laser device to perform sweeping, and controlling the laser device to switch from the band to the next band.

Abstract: A pToF sensor, a pToF pixel array and an operation method therefor are provided. The pToF pixel array includes a plurality of pToF pixels distributed in an array, a control circuit, and a conversion circuit. Each of the pToF pixels includes a photo sensitive unit configured to detect a return signal of a light pulse signal, and a first conversion unit configured to convert a time signal corresponding to each of the pToF pixels to an analog signal. The control circuit is connected to each of the pToF pixels, and configured to control an operation mode of each of the pToF pixels. The conversion circuit is connected to each of the pToF pixels, and configured to calculate a time-of-fight corresponding to each of the pToF pixels according to the analog signal corresponding to each of the pToF pixels.

Abstract: Embodiments of the present invention pertain to the technical field of a radar, and provide a LiDAR and an automated driving device. The LiDAR includes a transceiver component and a scanning component. The transceiver component includes n transceiver modules, where n is an integer and n>1, and each transceiver module includes an emission module and a receiving module that are correspondingly arranged. The emission module is configured to emit an outgoing laser. The receiving module is configured to receive an echo laser, which is a laser returning after the outgoing laser is reflected by an object in the detection region. The scanning component includes a rotation reflector that rotates around a rotation shaft. The rotation reflector includes at least two reflecting surfaces. The n transceiver modules correspond to the at least two reflecting surfaces.

Abstract: A flash LiDAR is provided and includes: an emitting assembly (3), a receiving assembly (4), a light blocking element (5), and a control assembly (6). The emitting assembly (3) includes at least one light-emitting element (31), configured to emit an outgoing laser to a detection region; the receiving assembly (4) is configured to receive a reflected laser returning after being reflected by an object in the detection region, where the emitting assembly (3) and the receiving assembly (4) are arranged abreast; and the light blocking element (5) is configured to block stray light directed to the receiving assembly (4).

Abstract: This application pertains to the technical field of LiDAR, and discloses a phased array emission apparatus, a LiDAR, and an automated driving device. The phased array emission apparatus includes an edge coupler, an optical combiner, and a phased array unit. An output end of the edge coupler is connected to an input end of the optical combiner, and an output end of the optical combiner is connected to an input end of the phased array unit. The edge coupler is configured to input and couple a first optical signal. The optical combiner is configured to transmit, to the phased array unit, the first optical signal coupled by the edge coupler. The phased array unit is configured to split the first optical signal into several first optical sub-signals and emit the first optical sub-signals. In the foregoing method, coupling efficiency can be improved, thereby meeting a low-loss requirement.

Abstract: Embodiments of the present disclosure provide an emission module and a mounting and adjustment method of the same, a LiDAR and a smart sensing device. An emission module includes an emission apparatus and a collimating element provided sequentially along an outgoing laser, where the emission apparatus is configured to generate the outgoing laser, and the collimating element is configured to collimate the outgoing laser generated by the emission apparatus and emit the outgoing laser; and the collimating element includes a fast-axis collimating element and a slow-axis collimating element provided sequentially along the outgoing laser, the fast-axis collimating element is configured to receive the outgoing laser generated by the emission apparatus and collimate the outgoing laser in a fast-axis direction, and the slow-axis collimating element is configured to receive the outgoing laser collimated in the fast-axis direction, collimate the outgoing laser in the slow-axis direction and emit the outgoing laser.

Abstract: This application pertains to the technical field of LiDAR, and discloses a receiving optical system, a laser receiving module, a LiDAR, and an optical adjustment method. The receiving optical system includes an optical receiving module and a first cylindrical lens. The optical receiving module is configured to receive a reflected laser and focus the received reflected laser. The first cylindrical lens is configured to receive the focused reflected laser and adjust the reflected laser in a first direction. Therefore, the receiving optical system can better perform matching on the photosensitive surface of the receiving sensor, and the energy receiving efficiency of the system is relatively high.

Abstract: An optical antenna, an optical phased array transmitter, and a lidar system using the same are provided. The optical antenna includes a substrate that forms at least a portion of a reflector layer having a first material, a waveguide layer disposed above the reflector layer and having a second material, a separation layer disposed between the waveguide layer and the reflector layer and having a third material. The waveguide layer further has a first grating array. The reflector layer reflects the light emitted downwards from the waveguide layer. The refractive index of the third material is smaller than that of either the first material or the second material.

Abstract: This application provides a multi-sensor-based state estimation method, an apparatus, and a terminal device. The method includes: in each cycle, extracting sensor messages and arranging the sensor messages into a queue; deleting a system state estimation value with a timestamp later than an initial timestamp; extracting the sensor messages from the queue; when prediction data is extracted, predicting a system state estimation value corresponding to the first timestamp according to a Kalman filter prediction algorithm; when the update data is extracted, obtaining the system state estimation value corresponding to the first timestamp, and updating the system state estimation value according to a Kalman filter update algorithm; after all the sensor messages in the queue are used, proceed to a next cycle; and detecting a system state estimation value with the latest timestamp in the state estimation queue, and outputting the system state estimation value.

Abstract: The present disclosure relates to a laser receiving device and a LiDAR. An isolation component is provided between a plurality of parallel sensor groups, and an isolation component is provided between a plurality of amplifier groups in parallel, so that a plurality of parallel receiving channels each form an independent current loop, thereby reducing noise crosstalk among signal receiving channels and improving the signal-to-noise ratio of the laser receiving device.

Abstract: Embodiments of a laser transceiving module and a LiDAR are disclosed. The laser transceiving module includes a housing; an emitting module configured to emit emergent laser signals; a laser splitting module; and a receiving module. The emergent laser signals emit, through the laser splitting module, outwards and are reflected by a target object in a detection region to return reflected laser signals. The laser splitting module is configured to deflect the reflected laser signals. The receiving module is configured to receive the deflected reflected laser signals. The emitting module, the laser splitting module, and the receiving module are fixed at the housing. An extinction structure is arranged between the emitting module and the laser splitting module and is configured to prevent the emergent laser signals that are reflected by the laser splitting module from emitting to the receiving module.

Abstract: Embodiments of a laser transceiving module, a light adjustment method, a LiDAR, and an automatic drive apparatus are disclosed. The laser transceiving module includes a base, a side cover, a laser emitting module, an emitting optical system, a laser splitting module, a receiving optical system, and a laser receiving module.

Abstract: An optical phased array, a method for reducing a phase error thereof, a LiDAR, and an intelligent apparatus are provided. The optical phased array includes an optical signal output unit, a waveguide unit, and an antenna transmitting unit. The optical signal output unit is configured to output M optical signals. The waveguide unit includes M waveguide pipes, each waveguide pipe includes at least one connection waveguide, and each of the at least one connection waveguide includes an input mode converter, a wide waveguide, and an output mode converter that are connected in sequence. The antenna transmitting unit is configured to transmit M optical signals outputted from the waveguide unit.

Abstract: This application provides an optical device, including an emitting assembly configured to emit an outgoing light signal, a beam splitting assembly configured to pass the outgoing light signal from the emitting assembly to a detection region, receive a reflected light signal from the detection region, and modify a transmission direction of the reflected light signal, a receiving assembly configured to receive the reflected light signal from the beam splitting assembly after the direction modification and generate an electrical signal in response to the reflected light signal. Also disclosed is a method of adjusting an optical device as described herein.

Abstract: A lidar and a lidar adjustment method are provided. The lidar includes at least one transceiver component. The at least one transceiver component includes an emitting assembly, a beam splitting assembly, and a receiving assembly. The emitting assembly is configured to emit an outgoing light signal. The outgoing light signal is emitted, through the beam splitting assembly, towards a detection region and reflected by a target object to form a reflected light signal. The receiving assembly is configured to receive the reflected light signal after being deflected by the beam splitting assembly.

Abstract: The present disclosure provides a multi-beam LiDAR system. The multi-beam LiDAR system includes a transmitter having an array of laser emitters. Each laser emitter is configured to emit a laser beam. The multi-beam LiDAR system also includes a receiver having an array of photodetectors. Each photodetector is configured to receive at least one return beam that is reflected by an object from one of the laser beams. The laser emitter array includes a plurality of laser emitter boards perpendicular to a horizontal plane. Each laser emitter board has a plurality of laser emitters. The plurality of laser emitters in the laser emitter array are staggered along a vertical direction. The photodetector array includes a plurality of columns of photodetectors. One of the laser emitter boards corresponds to one column of photodetectors.

Abstract: This application relates to the field of radar technologies, and in particular, to a laser radar and an intelligent sensing device. The laser radar includes a radar body, a laser emitter board, a laser receiver board, and a counterweight structure. The laser emitter board and the laser receiver board are separately disposed on the laser body. The laser emitter board is configured to emit an emergent laser toward a detection target. The laser receiver board is configured to receive a reflected laser reflected by the detection target, and convert an optical signal into an electrical signal, so as to analyze a position, a three-dimensional image, a speed, and the like of the detection target. The radar body is connected to a power apparatus, and the power apparatus drives the entire radar body and the laser emitter board and the laser receiver board that are located on the radar body to rotate, so that the laser radar can detect a range of 360° around.

Abstract: An apparatus in the field of optics technology, can include a reflector, a reflector substrate, and an extinction component. The reflector can be mounted on the reflector substrate. The extinction component can be arranged on a front surface of the reflector substrate. The reflector can be configured to reflect incident light signals. The extinction component can be configured to reduce the scattered light produced by the incident light signal on the reflector substrate. An optical scanning device (for example, lidar) having such features may greatly reduce the scattered light inside the lidar, reduce the detection blind area caused by the stray light, and greatly improve the receiving and detecting capabilities of the lidar.

Abstract: This application relates to a multi-pulse anti-interference signal processing apparatus. The multi-pulse anti-interference signal processing apparatus includes a detection pulse sending unit and a pulse receiving unit. The detection pulse sending unit is configured to emit a plurality of laser pulses to a target object based on a preset emission interval within a cycle. The pulse receiving unit is configured to receive a plurality of external signals within the cycle, obtain a reception interval between any two external signals, and determine, in the plurality of external signals based on the emission interval and the reception interval, an echo signal corresponding to the emitted laser pulses. A false echo pulse resulting from optical-to-electrical conversion and an interfering echo pulse fed back by other radar are effectively eliminated.

Abstract: The present disclosure provides a multi-beam LiDAR system. The multi-beam LiDAR system includes a transmitter having an array of laser emitters. Each laser emitter is configured to emit a laser beam. The multi-beam LiDAR system also includes a receiver having an array of photodetectors. Each photodetector is configured to receive at least one return beam that is reflected by an object from one of the laser beams. The laser emitter array includes a plurality of laser emitter boards perpendicular to a horizontal plane. Each laser emitter board has a plurality of laser emitters. The plurality of laser emitters in the laser emitter array are staggered along a vertical direction. The photodetector array includes a plurality of columns of photodetectors. One of the laser emitter boards corresponds to one column of photodetectors.