公开(公告)号：US12199682B2

公开(公告)日：2025-01-14

申请号：US17983355

申请日：2022-11-08

Applicant: SUTENG INNOVATION TECHNOLOGY CO., LTD.

Inventor： Ben Niu ,  Jing Wang ,  Lin Zhu

IPC: H04B10/548 ,  H04B10/564 ,  H04B10/40 ,  H04B10/60

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.

公开(公告)号：US11927695B2

公开(公告)日：2024-03-12

申请号：US17576874

申请日：2022-01-14

Applicant: SUTENG INNOVATION TECHNOLOGY CO., LTD.

Inventor： Jing Wang ,  Yalin Ren ,  Ben Niu ,  Lin Zhu

IPC: G01C3/08 ,  G01S7/481 ,  G01S17/10 ,  G01S17/931 ,  G01S17/89

CPC classification number: G01S7/4817 ,  G01S7/4816 ,  G01S17/10 ,  G01S17/931 ,  G01S17/89

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.

公开(公告)号：US12259472B2

公开(公告)日：2025-03-25

申请号：US18516926

申请日：2023-11-21

Applicant: SUTENG INNOVATION TECHNOLOGY CO., LTD.

Inventor： Lin Zhu ,  Jing Wang

IPC: G01S17/32 ,  G01S7/48 ,  G01S7/481 ,  G01S7/484 ,  G01S7/486 ,  G01S17/58 ,  G02B6/10

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.

公开(公告)号：US12085767B2

公开(公告)日：2024-09-10

申请号：US17889434

申请日：2022-08-17

Applicant: SUTENG INNOVATION TECHNOLOGY CO., LTD.

Inventor： Lin Zhu ,  Jing Wang ,  Ben Niu

IPC: G02B6/42 ,  G02B6/43

CPC classification number: G02B6/4212 ,  G02B6/4243 ,  G02B6/43

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.