Simplified Brillouin optical time-domain sensor based on direct modulation of a laser diode

被引：22

作者：

Song, Kwang Yong ^{[1
]}

Yang, Sora ^{[1
]}

机构：

[1] Chung Ang Univ, Dept Phys, Seoul 156756, South Korea

来源：

OPTICS EXPRESS | 2010年 / 18卷 / 23期

关键词：

DISTRIBUTED FIBER SENSOR; SPATIAL-RESOLUTION; STRAIN; BOTDA; SYSTEM; RANGE;

D O I：

10.1364/OE.18.024012

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We propose and experimentally demonstrate a novel kind of Brillouin optical time-domain sensor based on direct modulation of a laser diode (LD) which is free from the use of any microwave device. The Brillouin pump and the probe waves are alternately generated by the LD modulation, and an optical time-domain analysis adopted for distributed measurement. Maps of Brillouin frequency shift are obtained with a spatial resolution of 2 m and an accuracy of +/- 2 MHz in a 2 km optical fiber. (C) 2010 Optical Society of America

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收藏

页码：24012 / 24018

页数：7

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