Discriminative sensing of temperature and acoustic impedance by using forward Brillouin scattering in large effective area fiber

被引：13

作者：

Zhang, Zelin ^{[1
,2
]}

Lu, Yuangang ^{[1
,2
]}

Tanaka, Yosuke ^{[3
]}

Peng, Jianqin ^{[1
,2
]}

Zhuang, Zhikang ^{[1
,2
]}

机构：

[1] Nanjing Univ Aeronaut & Astronaut, Minist Ind & Informat Technol, Key Lab Space Photoelect Detect & Percept, Coll Astronaut, Nanjing 211106, Peoples R China

[2] Nanjing Univ Aeronaut & Astronaut, Coll Sci, Nanjing 211106, Peoples R China

[3] Tokyo Univ Agr & Technol, Grad Sch Engn, Dept Elect & Elect Engn, Koganei, Tokyo 1848588, Japan

来源：

APPLIED PHYSICS EXPRESS | 2021年 / 14卷 / 04期

基金：

中国国家自然科学基金;

关键词：

Forward Brillouin scattering; Optical fiber sensor; Simultaneous measurement; Radial acoustic mode; COEFFICIENT; FREQUENCY; COHERENT; LIQUIDS; LIGHT;

D O I：

10.35848/1882-0786/abebb2

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We experimentally clarified the characteristics of forward Brillouin scattering induced by radial acoustic modes (R-0,R-m) in large effective area fiber. The measured resonance frequencies of R-0,R-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,R-m modes that would achieve the minimum measurement error, where we had successfully achieved small measurement uncertainties of 0.4 degrees C and 0.03 kgs(-1) mm(-2), respectively.

引用

页数：4

共 32 条

[21] Temperature dependence of acoustic impedance for specific fluorocarbon liquids [J].