Fiber-Optic Distributed Sensor Based on Hybrid Raman and Brillouin Scattering Employing Multiwavelength Fabry-Perot Lasers

被引：31

作者：

Bolognini, Gabriele ^{[1
]}

Soto, Marcelo A. ^{[1
]}

Di Pasquale, Fabrizio ^{[1
]}

机构：

[1] Scuola Super Sant Anna, I-56124 Pisa, Italy

来源：

IEEE PHOTONICS TECHNOLOGY LETTERS | 2009年 / 21卷 / 20期

关键词：

Brillouin scattering; laser modes; optical fiber measurements; optical time-domain reflectometry (OTDR); TEMPERATURE;

D O I：

10.1109/LPT.2009.2028899

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：

We propose the use of standard multiwavelength Fabry-Perot (FP) lasers for distributed strain and temperature measurement in hybrid Raman-and Brillouin-based fiber-optic sensors. The multiple longitudinal modes of FP lasers allow for accurate spontaneous Raman scattering measurement and for simultaneous high-sensitivity coherent detection of the Brillouin frequency shift parameter for all longitudinal modes. Experimental results confirm great performance improvement in simultaneous strain and temperature measurement using a single optical fiber.

引用

页码：1523 / 1525

页数：3

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