Simplex-Coded BOTDA Sensor Over 120-km SMF With 1-m Spatial Resolution Assisted by Optimized Bidirectional Raman Amplification

被引：59
作者：
Soto, Marcelo A. [1 ]
Taki, Mohammad [1 ]
Bolognini, Gabriele [2 ]
Di Pasquale, Fabrizio [1 ]
机构：
[1] Scuola Super Sant Anna, TeCIP Inst, I-56124 Pisa, Italy
[2] CNR, IMM Inst, I-40129 Bologna, Italy
来源：
IEEE PHOTONICS TECHNOLOGY LETTERS | 2012年 / 24卷 / 20期
关键词：
Brillouin scattering; fiber optics sensors; Raman amplification; strain and temperature measurements;
D O I：
10.1109/LPT.2012.2212183
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：
Bidirectional low-noise Raman amplification and simplex coding based on the return-to-zero modulation format are optimized through numerical simulations for long-range Brillouin optical time-domain analysis sensing. Experimental results are reported on sensing capabilities along 120-km distance with 1-m spatial resolution, and worst-case temperature and strain resolution values of 1.3 degrees C and 26 mu epsilon, respectively.
引用
收藏
页码：1823 / 1826
页数：4
相关论文
共 10 条
[1]   Raman-Assisted Brillouin Distributed Temperature Sensor Over 100 km Featuring 2 m Resolution and 1.2°C Uncertainty [J].
Angulo-Vinuesa, Xabier ;
Martin-Lopez, Sonia ;
Nuno, Javier ;
Corredera, Pedro ;
Diego Ania-Castanon, Juan ;
Thevenaz, Luc ;
Gonzalez-Herraez, Miguel .
JOURNAL OF LIGHTWAVE TECHNOLOGY, 2012, 30 (08) :1060-1065
[2]  
[Anonymous], 2004, RAMAN AMPLIFIERS TEL
[3]   A high-performance optical time-domain Brillouin distributed fiber sensor [J].
Diaz, Silvia ;
Foaleng Mafang, Stella ;
Lopez-Amo, Manuel ;
Thevenaz, Luc .
IEEE SENSORS JOURNAL, 2008, 8 (7-8) :1268-1272
[4]   Experimental Demonstration on 2.5-m Spatial Resolution and 1°C Temperature Uncertainty Over Long-Distance BOTDA With Combined Raman Amplification and Optical Pulse Coding [J].
Jia, Xin-Hong ;
Rao, Yun-Jiang ;
Deng, Kun ;
Yang, Zi-Xin ;
Chang, Liang ;
Zhang, Chao ;
Ran, Zeng-Ling .
IEEE PHOTONICS TECHNOLOGY LETTERS, 2011, 23 (07) :435-437
[5]   SNR enhancement of OTDR using biorthogonal codes and generalized inverses [J].
Lee, D ;
Yoon, H ;
Kim, P ;
Park, J ;
Kim, NY ;
Park, N .
IEEE PHOTONICS TECHNOLOGY LETTERS, 2005, 17 (01) :163-165
[6]   A reconstruction technique for long-range stimulated Brillouin scattering distributed fibre-optic sensors: experimental results [J].
Minardo, A ;
Bernini, R ;
Zeni, L ;
Thevenaz, L ;
Briffod, F .
MEASUREMENT SCIENCE AND TECHNOLOGY, 2005, 16 (04) :900-908
[7]   Optimization of long-range BOTDA sensors with high resolution using first-order bi-directional Raman amplification [J].
Soto, Marcelo A. ;
Bolognini, Gabriele ;
Di Pasquale, Fabrizio .
OPTICS EXPRESS, 2011, 19 (05) :4444-4457
[8]   Long-range simplex-coded BOTDA sensor over 120 km distance employing optical preamplification [J].
Soto, Marcelo A. ;
Bolognini, Gabriele ;
Di Pasquale, Fabrizio .
OPTICS LETTERS, 2011, 36 (02) :232-234
[9]   Analysis of pulse modulation format in coded BOTDA sensors [J].
Soto, Marcelo A. ;
Bolognini, Gabriele ;
Di Pasquale, Fabrizio .
OPTICS EXPRESS, 2010, 18 (14) :14878-14892
[10]  
Thevenaz L, 2011, P SOC PHOTO-OPT INS, V7753
1