A Method for Detecting Small Oscillations Based on Homodyne Demodulation with a Tandem Low-Coherence Interferometer

IF 1.1 4区物理与天体物理 Q4 PHYSICS, APPLIED

Technical Physics Pub Date : 2024-09-27 DOI:10.1134/S1063784224070508

P. V. Volkov, D. A. Semikov, O. S. Vyazankin, A. V. Goryunov, A. Yu. Lukyanov, A. D. Tertyshnik

引用次数: 0

Abstract

The paper proposes a method for detecting small oscillations in the length of interference fiber-optic sensors, which makes it possible to compensate for the problem of slow drift of the working point with a remote sensor. The result is achieved by combining homodyne demodulation methods with a tandem low-coherence interferometer. Theoretically and experimentally, the possibility of detecting acoustic effects in the operating frequency band of 4 kHz with a sensitivity of up to 0.3 nm has been shown.

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基于同调解调的串联低相干干涉仪小振荡检测方法

本文提出了一种检测干涉光纤传感器长度微小振荡的方法，从而可以用远程传感器弥补工作点缓慢漂移的问题。这一成果是通过将同调解调方法与串联低相干干涉仪相结合而实现的。理论和实验都表明，在 4 千赫的工作频段内，可以探测到声波效应，灵敏度可达 0.3 纳米。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Technical Physics 物理-物理：应用

CiteScore

1.30

自引率

14.30%

发文量

139

审稿时长

3-6 weeks

期刊介绍： Technical Physics is a journal that contains practical information on all aspects of applied physics, especially instrumentation and measurement techniques. Particular emphasis is put on plasma physics and related fields such as studies of charged particles in electromagnetic fields, synchrotron radiation, electron and ion beams, gas lasers and discharges. Other journal topics are the properties of condensed matter, including semiconductors, superconductors, gases, liquids, and different materials.