A Distributed Acoustic Sensor with a 120-km Sensing Range Based on a Phase-Sensitive Optical Time-Domain Reflectometer and a Remotely Pumped Erbium-Doped Fiber Amplifier

IF 0.4 4区工程技术 Q4 ENGINEERING, MULTIDISCIPLINARY

Instruments and Experimental Techniques Pub Date : 2023-09-14 DOI:10.1134/S0020441223050184

A. S. Dudin, D. R. Kharasov, E. A. Fomiryakov, S. P. Nikitin, O. E. Nanii, V. N. Treshchikov

引用次数: 0

Abstract

The operating range of a distributed acoustic sensor based on a phase-sensitive optical time-domain reflectometer has been increased using an erbium-doped fiber amplifier with remote forward pumping. It is shown that by incorporating a single segment of erbium-doped fiber at a distance of 70 km and pumping it from the front end by a 500-mW laser at a wavelength of 1480 nm over the sensing fiber, it is possible to increase the operating range of the reflectometer by 45 km and, thereby, obtain the total operating range as large as 120 km along a standard single-mode fiber.

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基于相敏光时域反射计和远端泵浦掺铒光纤放大器的120公里探测距离分布式声传感器

采用带远程正向泵浦的掺铒光纤放大器，提高了基于相敏光时域反射计的分布式声传感器的工作范围。结果表明，通过在70 km的距离处加入一段掺铒光纤，并在传感光纤上用波长为1480 nm的500 mw激光从前端抽运，可以将反射计的工作范围增加45 km，从而获得沿标准单模光纤的总工作范围达到120 km。

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

Instruments and Experimental Techniques 工程技术-工程：综合

CiteScore

1.20

自引率

33.30%

发文量

113

审稿时长

4-8 weeks

期刊介绍： Instruments and Experimental Techniques is an international peer reviewed journal that publishes reviews describing advanced methods for physical measurements and techniques and original articles that present techniques for physical measurements, principles of operation, design, methods of application, and analysis of the operation of physical instruments used in all fields of experimental physics and when conducting measurements using physical methods and instruments in astronomy, natural sciences, chemistry, biology, medicine, and ecology.