作者: Yinping Miao , Xixi Ma , Jichao Lin , Binbin Song , Wei Lin
DOI: 10.1088/2040-8978/17/10/105609
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摘要: An intensity-interrogated fiber magnetic field sensor based on fluid (MF) and tilted long-period grating (TLPFG) has been proposed. The is constructed by a TLPFG immersed in the MF. TLPFGs supported coupling between LP01 core mode forward-propagating cladding modes with different azimuthal order l = 0, 1, 2,..., which shows spectral response behaviors normal gratings. experimental results theoretical analysis show that resonance wavelengths of present characteristics tuning applied intensity. transmission loss increases for some dips, while they reduce others increment Taking advantage optical power difference various wavelength regions, intensity sensitivity 0.05 dB Oe−1 could be achieved range from 75 Oe to 300 Oe. Due its low cost compactness, proposed expected find potential applications measurement photonic devices.