کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
462502 696793 2010 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Performance enhancement of BOTDR fiber optic sensor for oil and gas pipeline monitoring
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر شبکه های کامپیوتری و ارتباطات
پیش نمایش صفحه اول مقاله
Performance enhancement of BOTDR fiber optic sensor for oil and gas pipeline monitoring
چکیده انگلیسی

Distributed fiber optic sensor which based on Brillouin scattering has become increasingly popular due to its unprecedented advantage of simultaneously measuring temperature and strain. The Stimulated Brillouin Scattering (SBS) threshold, sensing distance, signal-to-noise ratio and spatial resolution are critical parameters to the performance of Brillouin Optical Time Domain Reflectometry (BOTDR) sensor. This technical paper presents the result of simulations as well as theoretical discussions on suppressing unfavorable fiber optic nonlinearity, SBS by using a statistical approach which is design of experiment (DOE). Due to the fact that there are a number of SBS threshold factors, there is a high possibility that multiple strong interactions exist among these factors. Conventional methods of plugging each factor one-at-a-time are not efficient as interactions between factors are totally ignored. The result had shown SBS suppression by 11 dB to achieve the maximum sensing distance of up to 110 km. Besides, a 3-bit simplex coding is employed when launching the laser pulses to enhance the SNR at the receiver. Simulation results demonstrated a 1.38 gain in SNR and a higher SBS threshold.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Optical Fiber Technology - Volume 16, Issue 2, March 2010, Pages 100–109
نویسندگان
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