Title :
A refractive-index fiber sensor by using no-core fibers
Author :
Lung-Shiang Huang ; Guei-Ru Lin ; Ming-Yue Fu ; Hao-Jan Sheng ; Hai-Tao Sun ; Wen-Fung Liu
Author_Institution :
Dept. of Electr. Eng., Feng-Chia Univ., Taichung, Taiwan
Abstract :
A simple, small-size, compact and high-sensitivity refractive-index sensor composed of a short no-core fiber (NCF) about 20 mm in length sandwiched between two pieces of single-mode fibers is proposed in this paper. The index measurement is experimentally demonstrated with the sensitivity of 7792.85 nm/ RIU in the range from 1.440 to 1.454 and 227.14 nm/ RIU in the range from 1.300 to 1.430. This sensing mechanism is based on the induced multi-mode interfering wavelength shift in the no-core fiber when the reflective index of the fiber outside is changed.
Keywords :
fibre optic sensors; refractive index measurement; multimode interfering wavelength shift; no-core fibers; refractive index fiber sensor; refractive index sensor; sensing mechanism; single mode fiber; Indexes; Optical fiber communication; Optical fiber sensors; Optical fibers; Refractive index; Sensitivity; Wavelength measurement;
Conference_Titel :
Next-Generation Electronics (ISNE), 2013 IEEE International Symposium on
Conference_Location :
Kaohsiung
Print_ISBN :
978-1-4673-3036-7
DOI :
10.1109/ISNE.2013.6512296
