Infrasound detection by laser diode self-mixing interferometry

Chengwei Li; Zhen Huang; Xiaogang Sun

doi:10.3788/COL201311.021201

Infrasound detection by laser diode self-mixing interferometry

Chengwei Li
, Zhen Huang^*
, Xiaogang Sun

^*Corresponding author for this work

School of Electrical Engineering and Automation, Harbin Institute of Technology
Lingnan Normal University

Research output: Contribution to journal › Article › peer-review

5 Scopus citations

Abstract

An alternative technique for infrasound detection based on the self-mixing (SM) interference of a laser diode is described. The principle involved is the dependence of the power emitted by the laser diode on infrasound-induced membrane vibration. The Fourier transform and fringe-counting methods are used to analyze the self-mixing signal. Infrasound signals are experimentally measured from 2 to 20 Hz with a resolution of 0.25, and the results well agree with the theoretical ones.

Original language	English
Article number	021201
Journal	Chinese Optics Letters
Volume	11
Issue number	2
DOIs	https://doi.org/10.3788/COL201311.021201
State	Published - Feb 2013
Externally published	Yes

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title = "Infrasound detection by laser diode self-mixing interferometry",

abstract = "An alternative technique for infrasound detection based on the self-mixing (SM) interference of a laser diode is described. The principle involved is the dependence of the power emitted by the laser diode on infrasound-induced membrane vibration. The Fourier transform and fringe-counting methods are used to analyze the self-mixing signal. Infrasound signals are experimentally measured from 2 to 20 Hz with a resolution of 0.25, and the results well agree with the theoretical ones.",

author = "Chengwei Li and Zhen Huang and Xiaogang Sun",

year = "2013",

month = feb,

doi = "10.3788/COL201311.021201",

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AU - Li, Chengwei

AU - Huang, Zhen

AU - Sun, Xiaogang

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AB - An alternative technique for infrasound detection based on the self-mixing (SM) interference of a laser diode is described. The principle involved is the dependence of the power emitted by the laser diode on infrasound-induced membrane vibration. The Fourier transform and fringe-counting methods are used to analyze the self-mixing signal. Infrasound signals are experimentally measured from 2 to 20 Hz with a resolution of 0.25, and the results well agree with the theoretical ones.

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DO - 10.3788/COL201311.021201

M3 - 文章

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VL - 11

JO - Chinese Optics Letters

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Infrasound detection by laser diode self-mixing interferometry

Abstract

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