Distributed measurements of vibration frequency using phase-OTDR with a DFB laser self-stabilized through PM fiber ring cavity

被引：32

作者：

Bueno Escobedo, J. L. ^{[1
,3
]}

Jason, J. ^{[2
]}

Lopez-Mercado, C. A. ^{[2
,3
]}

Spirin, V. V. ^{[3
]}

Wuilpart, M. ^{[2
]}

Megret, P. ^{[2
]}

Korobko, D. A. ^{[4
]}

Zolotovskiy, I. O. ^{[4
]}

Fotiadi, A. A. ^{[2
,4
,5
,6
]}

机构：

[1] Ctr Invest Mat Avanzados CIMAV, Ave Miguel de Cervantes 120, Chihuahua 31109, Mexico

[2] Univ Mons, Blvd Dolez 31, B-7000 Mons, Belgium

[3] Sci Res & Adv Studies Ctr Ensenada CICESE, Carretera Ensenada Tijuana 3918, Ensenada 22860, Baja California, Mexico

[4] Ulyanovsk State Univ, 42 Leo Tolstoy St, Ulyanovsk 432970, Russia

[5] Aston Univ, Sch Engn & Appl Sci, Birmingham B4 7ET, W Midlands, England

[6] RAS, Ioffe Physicotech Inst, 26 Polytekhnicheskaya St, St Petersburg 194021, Russia

来源：

RESULTS IN PHYSICS | 2019年 / 12卷

基金：

俄罗斯科学基金会; 俄罗斯基础研究基金会;

关键词：

Phase-sensitive OTDR; Self-injection locking; Frequency examination; INJECTION-LOCKING;

D O I：

10.1016/j.rinp.2019.02.023

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We have evaluated the performance of a phase-sensitive optical time domain reflectometry (phi-OTDR) system for vibration measurements utilizing a conventional telecom DFB laser self-stabilized through an external PM optical fiber ring resonator. This low-cost solution is directly compared with the use of a commercial, ultra-narrow linewidth (-100 Hz) fiber laser implemented into the same setup. Both systems are tested for measurement of the frequency of vibration applied to a fiber at a distance of 3500 m. The obtained SNR value higher than 6 dB demonstrates the ability of the DFB laser to perform distributed measurements of vibrations with frequencies up to 5600 Hz with a spatial resolution of 10 m.

引用

页码：1840 / 1842

页数：3

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