150km single-shot BOTDA sensor based on optical chirp chain technique and Brillouin loss scheme

摘要：

　　The distributed long-range Brillouin optical time domain analysis(BOTDA)is extremely time-consuming sensing scheme,which requires frequency-sweeping process and large number of average times.Besides,some of the existing long-range BOTDA techniques are forced to sacrifice the measurement time to enhance the sensors performance.Here,we propose a fast long-range BOTDA based on optical chirp chain(OCC)probe wave and Brillouin loss scheme.The OCC signal is generated by cascading the fast-frequency-changing microwave segments,which is pre-written into the memory of arbitrary waveform generator(AWG).The OCC technique and Brillouin loss scheme provide many advantages such as single-shot measurement,high Brillouin threshold,no additional amplification scheme and free from detrimental non-local effect.

关键词： Fiber optics sensors Nonlinear optics Stimulated Brillouin scattering

作者: Benzhang Wang Sanogo Diakaridia Chao Pang Yongkang Dong

作者单位: Institute of Opto-Electronics,Harbin Institute of Technology,Harbin 150001,China

会议类型: 国际会议

会议名称: The 7th World Conference on Structural Control and Monitoring(7WCSCM)(第七届结构控制与监测世界大会)

会议地点: 青岛

会议语种:英文

页码: 1493-1497

在线出版日期: 2018-07-22（万方平台首次上网日期，不代表论文的发表时间）