Abstract

In this article, we proposed an all-fiber laser self-mixing rangefinder by using the fabricated tunable fiber ring cavity laser with the wide-band tunable fiber Fabry–Perot filter as the frequency selective device instead of the traditional fiber grating. It has been shown to be of great significance in the measurement of the absolute distance with larger dynamic range and higher measurement accuracy. Additionally, the wavelength tuning range and frequency are controlled by adjusting the modulation signal introduced into the tunable fiber Fabry–Perot filter. In experiment, the absolute error and the relative error are inferior to ±0.047 m and 0.32% respectively within the range of 15 m, of which are satisfied with the measurement requirements of the reliable accuracy and broad range absolute distance.

Experimental study on the 1550 nm all fiber heterodyne laser range finder

Fu Yang, Yan He, Jianhua Shang, and Weibiao Chen
Appl. Opt. 48(34) 6575-6582 (2009)

Self-mixing interference in fiber ring laser and its application for vibration measurement

Xiajuan Dai, Ming Wang, Yi Zhao, and Junping Zhou
Opt. Express 17(19) 16543-16548 (2009)

Full-circle range and microradian resolution angle measurement using the orthogonal mirror self-mixing interferometry

Chenchen Wang, Xuewei Fan, You Guo, Huaqiao Gui, Huanqing Wang, Jianguo Liu, Benli Yu, and Liang Lu
Opt. Express 26(8) 10371-10381 (2018)

Design of a multiple self-mixing interferometer for a fiber ring laser

Liheng Shi, Dongmei Guo, Yifeng Cui, Hui Hao, Wei Xia, Yiping Wang, Xiaoqi Ni, and Ming Wang
Opt. Lett. 43(17) 4124-4127 (2018)

Laser vibrometer-rangefinder based on self-sweeping fiber laser

A. M. Volikova, I. A. Lobach, and S. I. Kablukov
Opt. Express 30(12) 22025-22039 (2022)