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布里渊分布式光纤传感系统实时频谱分析技术
Real-time spectrum analysis technology for BEOFS system
【Author】 Zhang Xuping,Zhang Yixin and Wang Shun (Institute of Optical Communication Engineering,Nanjing University,Nanjing,Jiangsu,210093)
【机构】 南京大学光通信工程研究中心;
【摘要】 传统的布里渊分布式光纤传感系统均采用扫频方式获得布里渊频移曲线,因此不具备实时传感能力。本文研究实时频谱分析技术以及其数据处理方法,并对布里渊分布式光纤传感系统的实时频谱分析模块进行设计。实验结果表明,所设计的实时频谱分析模块不仅可实现实时监测,而且降低了系统的复杂度,提高了系统的可靠性。
【Abstract】 Traditionally the frequency-scanning is used to get the Brillouin frequency shift spectrum for a Brillouin effect based optical fiber sensing system (BEOFS).Thus it can not make a real time sensing for the existing BEOFS.The real-time spectrum analysis technology and data processing method are investigated and the real-time spectrum analysis module is designed.Experiment results indicate that the real time sensing can be achieved by our designed real-time spectrum analysis module.In addition,the BEOFS system is complication is reduced and the reliability is enhanced.
【Key words】 fully distributed optical fiber sensor; Brillouin optical time domain reflectometry (BOTDR); real-time spectrum analysis;
- 【会议录名称】 中国光学学会2010年光学大会论文集
- 【会议名称】中国光学学会2010年光学大会
- 【会议时间】2010-08-23
- 【会议地点】中国天津
- 【分类号】TN253
- 【主办单位】中国光学学会