测距
干涉测量
干扰(通信)
光学
准确度和精密度
光路
炸薯条
光路长度
物理
计量系统
脉搏(音乐)
计算机科学
电信
探测器
频道(广播)
量子力学
天文
作者
Jihui Zheng,Yang Wang,Xinyu Wang,Fumin Zhang,Weiqiang Wang,Xin Ma,Jindong Wang,Jiawei Chen,Linhua Jia,Mingyu Song,Meiyan Yuan,Brent E. Little,Sai T. Chu,Cheng Dong,Xinghua Qu,Wei Zhao,Wenfu Zhang
摘要
The multiple pulse train interference (MPTI) ranging system takes advantage of the high accuracy and absolute length measurement capability, but traditional scheme has a large measurement dead zone. In this Letter, we propose a MPTI ranging scheme based on chip-based soliton microcomb to achieve high-precision but no dead-zone measurement. The measurement optical path is improved to solve the problem of cross correlation interference fringe overlap, and a peak fitting algorithm is employed to further improve the measurement accuracy of the system. Using a commercial He–Ne interferometer, a 384 nm precision is obtained in 1.5 m distance measurements. Advantages of the simple optical path, high precision, and no measurement dead zone are expected to realize on-chip integration and provide a solution for precision measurement.
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