Numerical analysis of single pulse and differential pulse-width pair BOTDA systems in the high spatial resolution regime

被引：26
作者：
Minardo, Aldo [1 ]
Bernini, Romeo [2 ]
Zeni, Luigi [1 ]
机构：
[1] Seconda Univ Napoli, Dipartimento Ingn Informaz, I-81031 Aversa, Italy
[2] CNR, Ist Rilevamento Elettromagnet Ambiente, I-80124 Naples, Italy
来源：
OPTICS EXPRESS | 2011年 / 19卷 / 20期
关键词：
NANOSECOND PULSES; BRILLOUIN; SENSOR; TIME; FIBER; RELAXATION; SPECTRUM;
D O I：
10.1364/OE.19.019233
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
A numerical analysis of conventional and differential pulse-width pair Brillouin optical time domain analysis systems is reported. The tests are focused on determining the performance of these systems especially in terms of spatial resolution, as a function of the pulse characteristics. A new definition of spatial resolution is given, based on analysis of the shape of the Brillouin gain spectrum. The influence of the rise/fall time of the pulse light to the spatial resolution is also studied. (C) 2011 Optical Society of America
引用
收藏
页码：19233 / 19244
页数：12
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