Distributed Axial Strain Sensitivity in Fibers With Different Germanium Concentrations

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

IEEE Photonics Technology Letters Pub Date : 2025-01-17 DOI:10.1109/LPT.2025.3531207

Jacek Olszewski;Marta Bernaś;Przemysław Chmielowski;Paweł Mergo;Waclaw Urbanczyk;Gabriela Statkiewicz-Barabach

引用次数: 0

Abstract

We examined the influence of germanium concentration in fiber core on distributed axial strain sensitivity in optical frequency-domain reflectometry based on Rayleigh scattering for single-mode step-index fibers differing in the level of germanium concentration (from 3.6 to 40.6 mol%). We observed a monotonically decreasing dependence of axial strain sensitivity on germanium concentration within a range of 0–3.5 mstrain for uncoated fibers. The lowest axial strain sensitivity of 0.7422 1/strain was obtained for fiber doped with 40.6 mol% GeO2 (UHNA7), compared to 0.7859 1/strain for fiber with 3.6 mol% GeO2 content (SMF-28). We also derived an analytical formula for strain sensitivity in optical frequency-domain reflectometry, explaining the experimental results.

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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.