Open AccessSolution refractive index sensor with wide-range high-resolution linear response based on short no-core fiber
Author(s) -
Jingjing Zheng,
Shuisheng Jian,
Lin Ma,
Ya Bai,
Li Pei,
Tigang Ning,
Yinghong Wen
Publication year - 2013
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.62.150703
Subject(s) - optics , normalized frequency (unit) , multi mode optical fiber , core (optical fiber) , materials science , step index profile , refractive index , resolution (logic) , wavelength , range (aeronautics) , single mode optical fiber , fiber , optical fiber , transmission (telecommunications) , graded index fiber , fiber optic sensor , physics , telecommunications , computer science , phase locked loop , frequency synthesizer , phase noise , composite material , artificial intelligence
The feasibility of applying mode propagation analysis (MPA) method in solving single mode- multimode- single mode (SMS) fiber structure is confirmed by comparing the experimental data with the theoretical results. The method of searching for linear response points on SMS based on MPA was proposed, applied to finding a wide-range high-resolution linear response wavelength theoretically, and confirmed in experiment. By using a 104 μ-in-diameter no-core fiber as short as 4.4 mm, we archived a linear transmission variation of 19.10 dB in the refractive index range of 1.326–1.417, which means a refractive index resolution of 4.76×10-5 according to the resolution of common commercial optical powermeter, and realizes a wide-range high-resolution linear response under the direction of the theory.