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

被引：60
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
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