Suteng Innovation Technology Co., Ltd.

Zte Corporation

Ben Niu

Jun Liu

Chao Liu

Jing Wang

Lin Zhu

Yalin Ren

Xianguang Wang

Chunxiao Qian

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 ifrequency modulation cycle, obtaining a relationship between a modulation voltage signal V(t) input into a light source and an actual frequency signal f(t) of an optical signal output by the light source, to obtain an actual association relationship f(V) corresponding to the ifrequency modulation cycle, where i is a positive integer; based on a target frequency modulation signal f(t) and the actual association relationship f(V), determining a modulation voltage signal V(t) corresponding to a jfrequency modulation cycle, where j is i+1; and inputting a modulation voltage signal V(t) into the light source, to implement frequency modulation of the optical signal in the jfrequency modulation cycle.

Method and apparatus for nonlinearly calibrating linear frequency modulation of optical signal, and medium and device thereof

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.

Packaging structure and packaging method of edge couplers and fiber array

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.

Phased array emission apparatus, LiDAR, and automated driving device

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Shenzhen, China

Ben Niu