Open AccessInvestigation of dynamic properties of erbium fiber laser for ultrasonic sensing
Author(s) -
Qi Wu,
Yoji Okabe,
Junqiang Sun
Publication year - 2014
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.22.008405
Subject(s) - fiber bragg grating , ultrasonic sensor , optics , materials science , fiber laser , acoustics , laser , optical fiber , vibration , phosfos , fiber optic sensor , polarization maintaining optical fiber , physics
Dynamic properties of an erbium fiber laser (EFL) is researched and demonstrated for ultrasonic sensing in this research. The EFL has ring cavity incorporated with a phase-shifted fiber Bragg grating. A numerical model is used to analyze its dynamic responses to quasi-static change, continuous wave and burst wave. The ultrasonic behavior of the EFL resembles the forced single degree of freedom vibration with damping. Corresponding experimental results fit the simulation results well, showing some interesting ultrasonic properties of this EFL. After certain data process method, this EFL can be used in practical ultrasonic nondestructive testing.