Abstract
We experimentally demonstrate a method for absolute distance measurement using a triple-comb-based multi-heterodyne interferometer which has the capacity to simultaneously balance the non-ambiguous range, resolution, update rate, and cost. Three flat-top electro-optic combs generated via cascaded intensity and phase modulators are adopted to form a measurement scheme including rough and fine measurements, and the unknown distance is determined by detecting the phase changes of the consecutive synthetic wavelengths. Experimental results demonstrate an agreement within 750 nm over 80 m distance at an update rate of 167 μs.
© 2018 Optical Society of America
Full Article | PDF ArticleMore Like This
Jiandong Xie, Liping Yan, Benyong Chen, Yingtian Lou, and Gangxiang Guo
Opt. Express 31(8) 13472-13485 (2023)
Hanzhong Wu, Fumin Zhang, Tingyang Liu, Petr Balling, and Xinghua Qu
Appl. Opt. 55(15) 4210-4218 (2016)
Ruitao Yang, Florian Pollinger, Karl Meiners-Hagen, Jiubin Tan, and Harald Bosse
Opt. Lett. 39(20) 5834-5837 (2014)