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

doi:10.1364/OE.477952

CORC > 长春光学精密机械与物理研究所 > 中国科学院长春光学精密机械与物理研究所

	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
刊名	Optics Express
	2023
卷号	31 期号:4 页码:6514-6528
ISSN号	10944087
DOI	10.1364/OE.477952
英文摘要	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.
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内容类型	期刊论文
源URL	[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.