Rotation velocity measurement based on self-mixing interference with a dual-external-cavity single-laser diode

被引：32

作者：

Jiang, Chunlei ^{[1
]}

Geng, Yuhan ^{[1
]}

Liu, Yuwei ^{[1
]}

Liu, Yunfei ^{[1
]}

Chen, Peng ^{[1
]}

Yin, Shuxin ^{[1
,2
]}

机构：

[1] Northeast Petr Univ, Coll Elect & Informat Engn, Daqing 163318, Peoples R China

[2] Heilongjiang August First Land Reclamat Univ, Coll Informat Technol, Daqing 163318, Peoples R China

来源：

APPLIED OPTICS | 2019年 / 58卷 / 03期

关键词：

INTERFEROMETRY;

D O I：

10.1364/AO.58.000604

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A novel Doppler velocity measurement method based on laser self-mixing interference with two parallel optical external cavities is investigated. In this method, the target object rotation velocity can be measured by the sum of two Doppler frequency shifts, which can be extracted by fast Fourier transform without setting and measuring incident angles. This study highlights the validity of the proposed method through a theoretical model analysis. Experiments realized velocity measurement with a relative error of less than 0.6%. (C) 2019 Optical Society of America

引用

页码：604 / 608

页数：5