Measurement of large-strain dependence of optical propagation loss in perfluorinated polymer fibers for use in seismic diagnosis

IEICE Electronics Express

Hiroki Ujihara¹  Marie Tabaru¹  Neisei Hayashi¹  Yosuke Mizuno¹  Kentaro Nakamura¹ 

[1] Precision and Intelligence Laboratory, Tokyo Institute of Technology

关键词: polymer optical fibers;    strain sensors;    propagation loss;   

DOI  :  10.1587/elex.11.20140707

学科分类：电子、光学、磁材料

来源: Denshi Jouhou Tsuushin Gakkai

【 摘 要 】

References(12)Cited-By(4)Brillouin scattering in perfluorinated graded-index (PFGI-) polymer optical fibers (POFs) has been extensively studied for structural health monitoring, including seismic diagnosis. Here, we measure the propagation loss of PFGI-POFs at telecom wavelengths as a function of large applied strain (up to 100%) at three optical powers and as a function of strain rate at a constant optical power. The strain dependence of the propagation loss in PFGI-POFs is found to be independent of the incident power (<27 dBm) and the strain rate (<500% s�?1), indicating that PFGI-POF-based Brillouin sensors are potentially applicable to actual seismic monitoring.

【 授权许可】

Unknown