High-Performance Distributed Brillouin Optical Fiber Sensing

来源 :光子传感器(英文版) | 被引量 : 0次 | 上传用户:gratify
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
This paper reviews the recent advances on the high-performance distributed Brillouin optical fiber sensing,which include the conventional distributed Brillouin optical fiber sensing based on backward stimulated Brillouin scattering and two other novel distributed sensing mechanisms based on Brillouin dynamic grating and forward stimulated Brillouin scattering,respectively.As for the conventional distributed Brillouin optical fiber sensing,the spatial resolution has been improved from meter to centimeter in the time-domain scheme and to millimeter in the correlation-domain scheme,respectively;the measurement time has been reduced from minute to millisecond and even to microsecond;the sensing range has reached more than 100km.Brillouin dynamic grating can be used to measure the birefringence of a polarization-maintaining fiber,which has been explored to realize distributed measurement of temperature,strain,salinity,static pressure,and transverse pressure.More recently,forward stimulated Brillouin scattering has gained considerable interest because of its capacity to detect mechanical features of materials surrounding the optical fiber,and remarkable works using ingenious schemes have managed to realize distributed measurement,which opens a brand-new way to achieve position-resolved substance identification.
其他文献
会议
会议
会议
会议
会议
幼儿园科学教育,是一种启蒙教育,重在兴趣,开发幼儿的智力.根据《纲要》提出的"强调培养幼儿对科学的兴趣,在自主活动的基础上,积累操作经验,体验操作乐趣;强调幼儿爱科学的
各專員蘭州市長各人民銀行办事處:为了幫助農民解决生產中的困難,保證完成粮、棉增產,促進農業生產的恢復与發展,本府根據中央指示,决定發放農業生產貸款,与小型水利貸款以
会议
会议