Phase-modulated continuous-wave coherent ranging method for optical phased array lidar

doi:10.1364/OE.477952

CIOMP OpenIR

	Phase-modulated continuous-wave coherent ranging method for optical phased array lidar
	Z. Mingshi, W. Yubing, Z. Lanxuan, H. Qian, Z. Shuhua, L. Lei, C. Yongyi, Q. Li, S. Junfeng and W. Lijun
	2023
发表期刊	Optics Express
ISSN	10944087
卷号	31 期号:4 页码:6514-6528
摘要	Light detection and ranging (lidar) is widely accepted as an indispensable sensor for autonomous vehicles. There are two fundamental challenges in a lidar system: optical beam steering technique and ranging method. Optical phased array (OPA) is considered as one of the most promising beam steering schemes due to its solid state, compact size, and high reliability. As for ranging method, time-of-flight and frequency-modulate continuous-wave (FMCW) are commonly utilized in numerous research. However, they are impractical to commercial OPA lidar due to either requiring excessive optical power or the poor stability, high complexity, and high insertion loss of the FMCW source. As a result, the development of OPA lidars is significantly hindered by the lack of a feasible ranging method. In this paper, we present a phase-modulated continuous-wave (PhMCW) ranging method with excellent ranging accuracy and precision. Ranging error as low as 0.1 cm and precision on the order of 3.5 cm are achieved. In addition, theoretical and experimental study on simultaneous velocity measurement is carried out and velocity error as low as 0.15 cm/s is obtained. Finally, we develop a proof-of-concept OPA-PhMCW lidar and obtain a point cloud with excellent fidelity. Our work paves a novel approach to solid-state, cost-effective and high-performance OPA lidars. © 2023 Optica Publishing Group under the terms of the Optica Open Access Publishing Agreement.
DOI	10.1364/OE.477952
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收录类别	sci ; ei
引用统计
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/67774
专题	中国科学院长春光学精密机械与物理研究所
推荐引用方式 GB/T 7714	Z. Mingshi, W. Yubing, Z. Lanxuan, H. Qian, Z. Shuhua, L. Lei, C. Yongyi, Q. Li, S. Junfeng and W. Lijun. Phase-modulated continuous-wave coherent ranging method for optical phased array lidar[J]. Optics Express,2023,31(4):6514-6528.
APA	Z. Mingshi, W. Yubing, Z. Lanxuan, H. Qian, Z. Shuhua, L. Lei, C. Yongyi, Q. Li, S. Junfeng and W. Lijun.(2023).Phase-modulated continuous-wave coherent ranging method for optical phased array lidar.Optics Express,31(4),6514-6528.
MLA	Z. Mingshi, W. Yubing, Z. Lanxuan, H. Qian, Z. Shuhua, L. Lei, C. Yongyi, Q. Li, S. Junfeng and W. Lijun."Phase-modulated continuous-wave coherent ranging method for optical phased array lidar".Optics Express 31.4(2023):6514-6528.

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