Dual-Channel Self-Mixing Vibration Measurement System in a Linear Cavity Fiber Laser

Author

Liang Lu ; Wenhua Zhang ; Bo Yang ; Jianxi Zhou ; Huaqiao Gui ; Benli Yu

Author_Institution

Key Lab. of Opto-Electron. Inf. Acquisition & Manipulation of Minist. of Educ., Anhui Univ., Hefei, China

Volume

13

Issue

11

fYear

2013

fDate

Nov. 2013

Firstpage

4387

Lastpage

4392

Abstract

The dual-channel self-mixing vibration measurement system in a linear cavity fiber laser with high sensitivity, flexibility, and potential remote sensing is proposed and studied in this paper. In addition, the output power with optical feedback is theoretically deduced and simulated on the basis of the three-cavity model. Experimental results show that the different movements of each channel can be detected from the dual-channel linear cavity fiber laser self-mixing interference system on the basis of the filter technology and that are in good agreement with the theoretical analysis. In addition, this paper introduces a new way to measure two-dimensional vibration.

Keywords

fibre lasers; fibre optic sensors; laser cavity resonators; laser feedback; optical fibre filters; vibration measurement; dual-channel self-mixing; filter technology; linear cavity fiber laser; optical feedback; remote sensing; self-mixing interference system; three-cavity model; vibration measurement system; Self-mixing interference; distributed bragg reflector; fiber optics sensors;

fLanguage

English

Journal_Title

Sensors Journal, IEEE

Publisher

ieee

ISSN

1530-437X

Type

jour

DOI

10.1109/JSEN.2013.2266931

Filename

6527348