A novel high sensitivity all-fiber micro-displacement sensor is proposed and experimentally demonstrated.This sensor consists of a long period fiber gating and a fiber tip,which is achieved only by a commercial arc di...A novel high sensitivity all-fiber micro-displacement sensor is proposed and experimentally demonstrated.This sensor consists of a long period fiber gating and a fiber tip,which is achieved only by a commercial arc discharge fusion splicer,and thus possesses a lower cost.The wavelength sensitivity of the proposed sensor could be up to 934 pm/μm,which is four times higher than that of the long period fiber grating(LPFG) with an air cavity structure.The intensity change sensitivity is-1.973 dB/μm.展开更多
基金supported by the National Natural Science Foundation of China(Nos.11274181,10974100,10674075,11004110,11274182 and 11104149)the Doctoral Scientific Fund Project of the Ministry of Education(No.20120031110033)+1 种基金the Tianjin Key Program of Application Foundations and Future Technology Research Project(No.10JCZDJC24300)the Fundamental Research Funds for the Central Universities of China
文摘A novel high sensitivity all-fiber micro-displacement sensor is proposed and experimentally demonstrated.This sensor consists of a long period fiber gating and a fiber tip,which is achieved only by a commercial arc discharge fusion splicer,and thus possesses a lower cost.The wavelength sensitivity of the proposed sensor could be up to 934 pm/μm,which is four times higher than that of the long period fiber grating(LPFG) with an air cavity structure.The intensity change sensitivity is-1.973 dB/μm.
