US 11,927,695 B2
Phased array emission apparatus, LiDAR, and automated driving device
Jing Wang, Shenzhen (CN); Yalin Ren, Shenzhen (CN); Ben Niu, Shenzhen (CN); and Lin Zhu, Shenzhen (CN)
Assigned to SUTENG INNOVATION TECHNOLOGY CO., LTD., Shenzhen (CN)
Filed by SUTENG INNOVATION TECHNOLOGY CO., LTD., Shenzhen (CN)
Filed on Jan. 14, 2022, as Appl. No. 17/576,874.
Application 17/576,874 is a continuation of application No. PCT/CN2019/096767, filed on Jul. 19, 2019.
Prior Publication US 2022/0155421 A1, May 19, 2022
Int. Cl. G01C 3/08 (2006.01); G01S 7/481 (2006.01); G01S 17/10 (2020.01); G01S 17/931 (2020.01); G01S 17/89 (2020.01)
CPC G01S 7/4817 (2013.01) [G01S 7/4816 (2013.01); G01S 17/10 (2013.01); G01S 17/931 (2020.01); G01S 17/89 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A phased array emission apparatus, comprising:
an edge coupler, an optical combiner, and a phased array unit, wherein 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,
wherein, in response to the apparatus being in a working state, the edge coupler is configured to transmit a first optical signal, the optical combiner is configured to transmit, to the phased array unit, the first optical signal transmitted by the edge coupler, and the phased array unit is configured to split the first optical signal into a plurality of first optical sub-signals and emit the plurality of first optical sub-signals;
wherein the apparatus further comprises a grating coupler,
wherein an output end of the grating coupler is connected to the input end of the optical combiner; and
wherein, in response to the apparatus being in a detection state, the grating coupler is configured to transmit a second optical signal,
wherein the optical combiner is configured to transmit, to the phased array unit, the second optical signal transmitted by the grating coupler,
wherein the phased array unit is configured to split the second optical signal into a plurality of second optical sub-signals and emit the plurality of second optical sub-signals,
wherein the optical combiner comprises a first port and a second port, wherein the first port is connected to the output end of the edge coupler, the second port is connected to the output end of the grating coupler,
wherein the optical combiner further comprises a third port, wherein the third port is connected to the input end of the phased array unit, and
wherein the optical combiner is configured to perform one of the following:
receive, through the first port, the first optical signal transmitted by the edge coupler, and output, through the third port, a part of the first optical signal to the phased array unit based on a preset light splitting ratio of the first port to the second port, or
receive, through the second port, the second optical signal transmitted by the grating coupler, and output, through the third port, a part of the second optical signal to the phased array unit based on a preset light splitting ratio of the first port to the second port.