Simplified Configuration of Brillouin Optical Correlation-Domain Reflectometry

IEEE Photonics Journal

Yosuke Mizuno¹  Neisei Hayashi²  Kentaro Nakamura² 

[1] Intell. Lab., Tokyo Inst. of Technol., Yokohama, Japan;;Precision &

关键词: Brillouin scattering;    optical fiber sensors,;    distributed measurement;    strain sensing;    temperature sensing;   

DOI  :  10.1109/JPHOT.2014.2361638

来源: DOAJ

【 摘 要 】

We develop a simple and cost-efficient configuration of Brillouin optical correlation-domain reflectometry (BOCDR), the setup of which does not include an additional reference path used in standard BOCDR systems. The Fresnel-reflected light from an open end of a sensing fiber is used as reference light. The limitations of spatial resolution, measurement range, and their ratio are theoretically clarified, and then, a distributed strain measurement with a <; 100-mm spatial resolution and a 4.1-m measurement range is demonstrated with a high signal-to-noise ratio.

【 授权许可】

Unknown