Dynamic Fabry–Perot cavity length detection based on multi-layer wavelet decomposition transformation method

IF 2.5 3区物理与天体物理 Q2 OPTICS

Optics Communications Pub Date : 2025-09-22 DOI:10.1016/j.optcom.2025.132485

Weijin Wang, Weizhao Pang, Yuxuan Peng, Tai Yuan, Leizhen Lu, Xuefeng Mao

引用次数: 0

Abstract

In this paper, a scanning laser-based dynamic Fabry–Perot sensor detection scheme is proposed to demodulate the absolute cavity length based on the multilayer wavelet decomposition transform method, which employs two newly proposed threshold functions. The demodulation accuracy and stability of the wavelet transform method with four different threshold functions are compared. Under the laser scanning frequency of 15 kHz, the algorithm can eliminate Doppler effect and achieve a mean square error of 1.0008 × 10⁻⁶μm², a standard deviation of 0.0181um, and a wavelength resolution of 0.01pm, which is characterized by low cost and high stability.

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基于多层小波分解变换的动态法布里-珀罗空腔长度检测方法

本文提出了一种基于扫描激光的动态法布里-珀罗传感器检测方案，该方案基于多层小波分解变换方法，采用两个新提出的阈值函数对绝对腔长进行解调。比较了四种不同阈值函数的小波变换解调精度和稳定性。在激光扫描频率为15 kHz的情况下，该算法可消除多普勒效应，均方误差为1.0008 × 10−6μm2，标准差为0.0181um，波长分辨率为0.01pm，具有成本低、稳定性高等特点。

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

Optics Communications 物理-光学

CiteScore

5.10

自引率

8.30%

发文量

681

审稿时长

38 days

期刊介绍： Optics Communications invites original and timely contributions containing new results in various fields of optics and photonics. The journal considers theoretical and experimental research in areas ranging from the fundamental properties of light to technological applications. Topics covered include classical and quantum optics, optical physics and light-matter interactions, lasers, imaging, guided-wave optics and optical information processing. Manuscripts should offer clear evidence of novelty and significance. Papers concentrating on mathematical and computational issues, with limited connection to optics, are not suitable for publication in the Journal. Similarly, small technical advances, or papers concerned only with engineering applications or issues of materials science fall outside the journal scope.