Abstract
Abstract
We experimentally clarified the characteristics of forward Brillouin scattering induced by radial acoustic modes (R
0,m
) in large effective area fiber. The measured resonance frequencies of R
0,m
modes were shown to have different sensitivities to acoustic impedance. Then we performed discriminative measurement of temperature and acoustic impedance by selecting a pair of different R
0,m
modes that would achieve the minimum measurement error, where we had successfully achieved small measurement uncertainties of 0.4 °C and 0.03 kg·s–1 · mm–2, respectively.
Funder
Nanjing University of Aeronautics and Astronautics PhD short-term visiting scholar project
National Natural Science Foundation of China
Subject
General Physics and Astronomy,General Engineering
Cited by
13 articles.
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