Real-time spectral interferometry enables ultrafast acoustic detection

Liu, Yusong1,2; Ni, Wenjun3; Yang, Liuyang1; Huang, Siyun1; Liu, Haoguang1; Sun, Yixiang1; Xia, Ran1; Yao, Yao2; Yan, Lisong1; Luo, Yiyang2; Xu, Zhilin4; Xu, Gang1; Sun, Qizhen1; Tang, Xiahui1; Shum, Perry Ping5

2023-11-20

10.1063/5.0178453

APPLIED PHYSICS LETTERS   影响因子和分区

0003-6951

1077-3118

Optical interferometry is a promising alternative for acoustic detection as it records the changes of interference patterns. Apart from interferometric sensor heads, readout systems also play a crucial role in sensing performance. Here, inspired by the soliton molecule vibrations in ultrafast lasers, we introduce an efficient real-time spectral interferometry (RSI) approach to read out the Fabry-Perot interferometer (FPI) for acoustic detection. Broadband pulses, emitted from an ultrafast fiber laser, are launched into the FPI sensor. Pseudo dual-pulse molecule is constructed by virtue of the equivalent two-beam interference of the FPI and modulated by the diaphragm transducer. The acoustic driven "molecular vibration" conforms to the sound applied on the metal diaphragm. Hence, the acoustic signals can be directly recorded by the successive dual-pulse spectral interferograms, imaged as a spectral encoded "soundtrack." We experimentally achieve the real-time characterization of both the audible and ultra sounds by retrieving the relative phase evolutions with a phase resolution of 37.6 mrad and preliminarily verifying the feasibility of the RSI in acoustic detection. This approach to wideband acoustic detection highlights an advanced application of ultrafast laser sources and paves an efficient way for interrogating the interferometric fiber sensors.

SCI ; EI

英语

NI论文

其他

This work was supported by the National Natural Science Foundation of China (Nos. U22A20206, 61922033, and 62275097), the Open Project Program of Wuhan National Laboratory for Optoelectronics (No. 2022WNLOKF007), the China Postdoctoral Science Foundation (["U22A20206","61922033","62275097"] ; National Natural Science Foundation of China[2022WNLOKF007] ; Open Project Program of Wuhan National Laboratory for Optoelectronics[2022M711243] ; China Postdoctoral Science Foundation[2023CDJXY-041]

Physics

Physics, Applied

WOS:001106651900021

AIP Publishing

20234815132090

Acoustics ; Diaphragms ; Fabry-Perot interferometers ; Fiber lasers ; Molecules ; Ultrafast lasers

Machine Components:601.2 ; Lasers, General:744.1 ; Solid State Lasers:744.4 ; Acoustics, Noise. Sound:751 ; Atomic and Molecular Physics:931.3 ; Optical Instruments:941.3 ; Optical Variables Measurements:941.4

PHYSICS

Web of Science

1.Huazhong Univ Sci & Technol, Sch Opt & Elect Informat, Wuhan 430074, Peoples R China
2.Chongqing Univ, Key Lab Optoelect Technol & Syst, Minist Educ, Chongqing 400044, Peoples R China
3.South Cent Minzu Univ, Coll Elect & Informat Engn, Hubei Key Lab Intelligent Wireless Commun, Wuhan 430074, Peoples R China
4.Huazhong Univ Sci & Technol, Ctr Gravitat Expt, Wuhan 430074, Peoples R China
5.Southern Univ Sci & Technol, Dept Elect & Elect Engn, Shenzhen 518055, Peoples R China

Liu, Yusong,Ni, Wenjun,Yang, Liuyang,et al. Real-time spectral interferometry enables ultrafast acoustic detection[J]. APPLIED PHYSICS LETTERS,2023,123(21).

Liu, Yusong.,Ni, Wenjun.,Yang, Liuyang.,Huang, Siyun.,Liu, Haoguang.,...&Shum, Perry Ping.(2023).Real-time spectral interferometry enables ultrafast acoustic detection.APPLIED PHYSICS LETTERS,123(21).

Liu, Yusong,et al."Real-time spectral interferometry enables ultrafast acoustic detection".APPLIED PHYSICS LETTERS 123.21(2023).