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公开(公告)号：US20220155421A1
公开(公告)日：2022-05-19
申请号：US17576874
申请日：2022-01-14
Applicant: SUTENG INNOVATION TECHNOLOGY CO., LTD.
IPC: G01S7/481 , G01S17/931 , G01S17/10
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.
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公开(公告)号：US20220057488A1
公开(公告)日：2022-02-24
申请号：US17520601
申请日：2021-11-05
Applicant: SUTENG INNOVATION TECHNOLOGY CO., LTD.
Inventor： Jing WANG
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.
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3.发明公开公开(公告)号：US20230208527A1
公开(公告)日：2023-06-29
申请号：US17983355
申请日：2022-11-08
Applicant: SUTENG INNOVATION TECHNOLOGY CO., LTD.
IPC: H04B10/548 , H04B10/564
CPC classification number: H04B10/548 , H04B10/564
Abstract: This disclosure provides a method for nonlinearly calibrating linear frequency modulation of an optical signal, an apparatus for nonlinearly calibrating linear frequency modulation of an optical signal, a computer-readable storage medium, and an electronic device. The method includes: in an ith frequency modulation cycle, obtaining a relationship between a modulation voltage signal Vi(t) input into a light source and an actual frequency signal fi(t) of an optical signal output by the light source, to obtain an actual association relationship fi(V) corresponding to the ith frequency modulation cycle, where i is a positive integer; based on a target frequency modulation signal fg(t) and the actual association relationship fi(V), determining a modulation voltage signal Vj(t) corresponding to a jth frequency modulation cycle, where j is i+1; and inputting a modulation voltage signal Vj(t) into the light source, to implement frequency modulation of the optical signal in the jth frequency modulation cycle.
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公开(公告)号：US20220128661A1
公开(公告)日：2022-04-28
申请号：US17567960
申请日：2022-01-04
Applicant: SUTENG INNOVATION TECHNOLOGY CO., LTD.
Inventor： Jing WANG
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.
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Patent Agency Ranking
公开(公告)号：US20240201334A1
公开(公告)日：2024-06-20
申请号：US18518411
申请日：2023-11-22
Applicant: SUTENG INNOVATION TECHNOLOGY CO., LTD.
Inventor： Jing WANG , Chunxin QIU , Letian LIU
IPC: G01S7/481 , G01S17/931
CPC classification number: G01S7/4813 , G01S7/4817 , G01S17/931
Abstract: This application discloses a frequency modulated continuous wave LiDAR and an autonomous driving device. The LiDAR includes a light source module, a silicon photonic chip and a refraction module, and the silicon photonic chip includes a light splitting module, a coupling module and multiple transceiving units. The light splitting module receives a laser beam coupled into the silicon photonic chip, divides the laser beam into multiple beams of detection light, and transmits the multiple beams of detection light to corresponding multiple transceiving units, and the transceiving units emit the received detection light outward. The refraction module is configured to refract the detection light emitted by the multiple transceiving units to emit multiple beams of detection light in a staggered manner in a second direction, where the second direction is a direction perpendicular to the terminal surface of the transceiving unit.
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公开(公告)号：US20240176021A1
公开(公告)日：2024-05-30
申请号：US18516926
申请日：2023-11-21
Applicant: SUTENG INNOVATION TECHNOLOGY CO., LTD.
Abstract: This application discloses a LiDAR and a mobile device, where LiDAR includes a lens and a photonic chip, an optical axis of the lens extends along a first preset direction; the photonic chip and the lens are spaced apart along the first preset direction, the photonic chip includes a cladding layer and multiple receiving waveguide core layers, all the receiving waveguide core layers are located at an end of the cladding layer that is closer to the lens and are spaced apart along a second preset direction, each receiving waveguide core layer has a first end surface and a second end surface opposite to each other, the first end surface is closer to the lens than the second end surface; and there is a distance between a first end surface of at least one receiving waveguide core layer and a focal plane of the lens.
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公开(公告)号：US20220302585A1
公开(公告)日：2022-09-22
申请号：US17568755
申请日：2022-01-05
Applicant: SUTENG INNOVATION TECHNOLOGY CO., LTD.
Inventor： Jing WANG
Abstract: Embodiments of the present disclosure disclose an antenna array applied to an optical phased array, the optical phased array, and a LiDAR. The antenna array includes N phase compensation groups and N antenna groups, where each phase compensation group includes M phase compensation units, and each antenna group includes M antenna units, and where N and M are positive integers. An input end of a phase compensation unit in the phase compensation group is configured to receive an optical signal. An output end is connected to an antenna unit in the antenna group, is configured to transmit the received optical signal to the antenna unit, and performs phase compensation on the optical signal based on a phase shift caused by the antenna unit. The antenna unit is configured to transmit the optical signal.
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公开(公告)号：US20230204768A1
公开(公告)日：2023-06-29
申请号：US18085518
申请日：2022-12-20
Applicant: SUTENG INNOVATION TECHNOLOGY CO., LTD.
CPC classification number: G01S17/02 , G02B6/12 , G02B2006/12147 , G01S7/4817
Abstract: A waveguide assembly, an integrated chip, and a LiDAR are provided. The waveguide assembly includes a plurality of single-mode waveguides arranged with intervals. The effective refractive index of at least one single-mode waveguide is not equal to that of another adjacent single-mode waveguide.
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公开(公告)号：US20230053498A1
公开(公告)日：2023-02-23
申请号：US17889434
申请日：2022-08-17
Applicant: SUTENG INNOVATION TECHNOLOGY CO., LTD.
Abstract: A packaging structure and a packaging method of edge couplers and a fiber array are provided. The packaging structure includes a silicon substrate, an edge coupler, and a fiber array. Multiple edge couplers are arranged in a main body portion of the silicon substrate, and an end of the edge coupler extends to a step groove of the silicon substrate. At least a part of the cover of the fiber array is accommodated in the step groove. Multiple fibers in the fiber array correspondingly pass through multiple lead channels of the cover and are then coupled with the edge couplers in the step groove. The edge couplers butt the fibers in the fiber array. The cover is moved until a part of the cover is accommodated in the step groove, so that the fibers can be aligned with the edge couplers in the step groove.
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