%0 Journal Article
%T A Self-Mixing Microvibration Measurement System of a <i>¦Ð</i>-Phase Shifted DFB Fiber Laser
%A Rong Xiang
%A Chuxia Chen
%A Bing Kong
%A Qiusan Hong
%A Liang Lu
%J Optics and Photonics Journal
%P 269-282
%@ 2160-889X
%D 2022
%I Scientific Research Publishing
%R 10.4236/opj.2022.1212020
%X Recently, with the rapid development of precision machining, microvibration measurement is required for the manufacturing and installation of parts and components. In this paper, a self-mixing microvibration measurement system of a <i>¦Ð</i>-phase shifted Distributed feedback (DFB) fiber laser is introduced. An all-fiberized configuration Er<sup>3+</sup>-Yb<sup>3+</sup> co-doped DFB fiber laser was used as light source, in which an active <i>¦Ð</i>-phase shifted fiber Bragg grating (FBG) was wrote on Er<sup>3+</sup>-Yb<sup>3+</sup> co-doped fiber. Using this, it can easily get a single-mode lasing with narrow linewidth. Experimental results demonstrate that the amplitude of vibration can be achieved down to <i>¦Ë</i>/5 without any modulation parts while utilizing the reflecting mirror. It is in good agreement with the theoretical analysis and very helpful in proving sensitivity and stability of the measurement system. In addition, remote vibration measurement with a distance of 20 km is also realized with this system.
%K Self-Mixing
%K Distributed Feedback Fiber Laser
%K Microvibration Measurement
%K Remote Vibration Measurement
%U http://www.scirp.org/journal/PaperInformation.aspx?PaperID=121747