High Spatial and Spectral Resolution Long-Range Sensing Using Brillouin Echoes

被引：145

作者：

Foaleng, Stella M. ^{[1
]}

Tur, Moshe ^{[1
]}

Beugnot, Jean-Charles ^{[1
]}

Thevenaz, Luc ^{[1
]}

机构：

[1] Ecole Polytech Fed Lausanne, Inst Elect Engn, CH-1015 Lausanne, Switzerland

来源：

JOURNAL OF LIGHTWAVE TECHNOLOGY | 2010年 / 28卷 / 20期

基金：

以色列科学基金会;

关键词：

Brillouin echoes; distributed fiber sensor; fiber optics sensors; stimulated Brillouin scattering; DISTRIBUTED-TEMPERATURE; SENSOR;

D O I：

10.1109/JLT.2010.2073443

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

High spatial (similar to cm) and spectral (similar to MHz) resolution Brillouin sensing is realized with enhanced signal to noise ratio using a pre-activated acoustic field and an optical phase control over the interrogating pulse. Pre-activation of the acoustic field preserves the Brillouin natural linewidth and a differential gain technique extends the method to long ranges. Experimentally, fully resolved measurements of the Brillouin frequency shift of a 5 cm spot perturbation at the far end of a 5 km fiber have been performed with a frequency resolution of 3 MHz (2 sigma), using a 500 ps (5 cm) pi phase shift pulse.

引用

页码：2993 / 3003

页数：11

共 24 条

[1] Agrawal G., 2008, NONLINEAR OPTICS
[2] 32-KM DISTRIBUTED TEMPERATURE SENSOR-BASED ON BRILLOUIN LOSS IN AN OPTICAL-FIBER
BAO, X
WEBB, DJ
JACKSON, DA
[J]. OPTICS LETTERS, 1993, 18 (18) : 1561 - 1563
[3] Characterization of the Brillouin-loss spectrum of single-mode fibers by use of very short (<10-ns) pulses
Bao, X
Brown, A
DeMerchant, M
Smith, J
[J]. OPTICS LETTERS, 1999, 24 (08) : 510 - 512
[4] Boyd R. W., 2008, NONLINEAR OPTICS, P11
[5] Dark-pulse Brillouin optical time-domain sensor with 20-mm spatial resolution
Brown, Anthony W.
Colpitts, Bruce G.
Brown, Kellie
[J]. JOURNAL OF LIGHTWAVE TECHNOLOGY, 2007, 25 (01) : 381 - 386
[6] A high-performance optical time-domain Brillouin distributed fiber sensor
Diaz, Silvia
Foaleng Mafang, Stella
Lopez-Amo, Manuel
Thevenaz, Luc
[J]. IEEE SENSORS JOURNAL, 2008, 8 (7-8) : 1268 - 1272
[7] Fellay A., 1997, P 12 INT C OPT FIB S, V16, P324
[8] FOALENG SM, 2009, P 20 INT C OPT FIB S, V7503
[9] Brillouin optical-fiber frequency-domain analysis for distributed temperature and strain measurements
Garus, D
Gogolla, T
Krebber, K
Schliep, F
[J]. JOURNAL OF LIGHTWAVE TECHNOLOGY, 1997, 15 (04) : 654 - 662
[10] The influence of pulse amplification on distributed fibre-optic Brillouin sensing and a method to compensate for systematic errors
Geinitz, E
Jetschke, S
Röpke, U
Schröter, S
Willsch, R
Bartelt, H
[J]. MEASUREMENT SCIENCE AND TECHNOLOGY, 1999, 10 (02) : 112 - 116

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