高非线性光纤中四波混频增强的双频扫描干涉测量

IF 2.7 3区计算机科学 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC

Optical Fiber Technology Pub Date : 2025-09-22 DOI:10.1016/j.yofte.2025.104415

Dong Sun , Luming Song , Fumin Zhang , Shufan Li , Hongyi Lin

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引用次数: 0

摘要

频扫干涉测量是一种高精度测距技术，广泛应用于各种领域。然而，FSI的精度明显受到目标的微小振动所引入的多普勒频移误差的影响，这些误差会参与到拍信号中。在本文中，我们提出了一种利用四波混频（FWM）效应的双FSI测距方法。该方法不仅成本低，而且能有效地消除多普勒频移误差。FWM效应解决了双扫频激光器之间的同步问题。采用该方法，在目标振动频率为1hz、振幅为1 μm时，测距精度的标准差从412 μm降至9 μm。此外，这种技术允许同时计算物体的速度。

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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Dual-frequency sweeping interferometry enhanced by four-wave mixing in highly nonlinear fiber

Frequency sweeping interferometry (FSI) is a high-precision ranging technique commonly employed in various applications. However, the accuracy of FSI is significantly compromised by Doppler shift errors introduced by subtle vibrations of the target, which become involved in the beat signal. In this paper, we propose a dual FSI ranging method using the Four-Wave Mixing (FWM) effect. This method is not only cost-effective but also effectively eliminates the Doppler shift error. The FWM effect resolves the synchronization issue between the dual-swept lasers. Using this method, the standard deviation of the ranging accuracy decreases from 412 to 9 μm at the target vibration frequency and amplitude of 1 Hz and 1 μm. Furthermore, this technique allows for the concurrent calculation of the object’s velocity.

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来源期刊

Optical Fiber Technology 工程技术-电信学

CiteScore

4.80

自引率

11.10%

发文量

327

审稿时长

63 days

期刊介绍： Innovations in optical fiber technology are revolutionizing world communications. Newly developed fiber amplifiers allow for direct transmission of high-speed signals over transcontinental distances without the need for electronic regeneration. Optical fibers find new applications in data processing. The impact of fiber materials, devices, and systems on communications in the coming decades will create an abundance of primary literature and the need for up-to-date reviews. Optical Fiber Technology: Materials, Devices, and Systems is a new cutting-edge journal designed to fill a need in this rapidly evolving field for speedy publication of regular length papers. Both theoretical and experimental papers on fiber materials, devices, and system performance evaluation and measurements are eligible, with emphasis on practical applications.