Zhi-Fang Xu

High-sensitivity optical fiber sensor based on a tapered-U enhanced evanescent field probe for pH detection

To overcome the limitation of the evanescent field enhancement efficiency in singlemicrostructure optical fibers, this paper designs a tapered-U-shaped evanescent fieldenhanced(TU-EFE) optical fiber probe based on the principle of field-synergistic enhancement and qualitatively analyzes the coupling enhancement mecha...