Abstract
On the basis of conventional measurement, a novel enhanced laser self-mixing Doppler velocimetry is proposed in this paper, with a pre-feedback structure added to enhance the signals. The improved velocimetry is applicable to the measure of the velocity when the feedback light is weak. Through the exploration of the theoretical model and the performance of experiments, the study results show that the proposed method has a significant signal enhancement effect, with experimental measurement relative errors being less than 0.9%.
© 2019 Optical Society of America
Full Article | PDF ArticleMore Like This
Chunlei Jiang, Yuhan Geng, Yuwei Liu, Yunfei Liu, Peng Chen, and Shuxin Yin
Appl. Opt. 58(3) 604-608 (2019)
Taiji Dong, Bingkun Gao, Chen Qing, and Yuhan Geng
Appl. Opt. 59(20) 5930-5936 (2020)
Junbao Chen, Hao Lin, Wei Xia, Hui Hao, Dongmei Guo, and Ming Wang
J. Opt. Soc. Am. B 36(3) 794-798 (2019)