Long-Distance Quasi-Distributed FBG Sensor System Based on Time-Division Multiplexing

IF 2.3 3区工程技术 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC

IEEE Photonics Technology Letters Pub Date : 2024-08-21 DOI:10.1109/LPT.2024.3447012

Keiji Kuroda

引用次数: 0

Abstract

This letter reports time-division multiplexed interrogation of fiber Bragg gratings distributed in a single long fiber. A heterodyne detection technique is used to sensitively detect weak reflections from fiber Bragg gratings. Reflection spectra of three fiber Bragg gratings located at 14 m, 2 km, and 42 km, each with a reflectivity of 1%, are simultaneously observed with sufficient signal-to-noise ratios.

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基于时分复用技术的远距离准分布式 FBG 传感器系统

这封信报告了对分布在单根长光纤中的光纤布拉格光栅进行时分复用探测的情况。异频探测技术用于灵敏地探测光纤布拉格光栅的微弱反射。同时观测到位于 14 米、2 千米和 42 千米处的三个光纤布拉格光栅的反射光谱，每个光栅的反射率为 1%，信噪比足够高。

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

IEEE Photonics Technology Letters 工程技术-工程：电子与电气

CiteScore

5.00

自引率

3.80%

发文量

404

审稿时长

2.0 months

期刊介绍： IEEE Photonics Technology Letters addresses all aspects of the IEEE Photonics Society Constitutional Field of Interest with emphasis on photonic/lightwave components and applications, laser physics and systems and laser/electro-optics technology. Examples of subject areas for the above areas of concentration are integrated optic and optoelectronic devices, high-power laser arrays (e.g. diode, CO2), free electron lasers, solid, state lasers, laser materials'' interactions and femtosecond laser techniques. The letters journal publishes engineering, applied physics and physics oriented papers. Emphasis is on rapid publication of timely manuscripts. A goal is to provide a focal point of quality engineering-oriented papers in the electro-optics field not found in other rapid-publication journals.