A High Sensitivity, Evanescent Feld Refractometric Sensor Based on Tapered Multimode Fiber Interference

Authors

Pengfei Wang, Technological University DublinFollow
Gilberto Brambilla, University of Southampton
Ming Ding, University of Southampton
Yuliya Semenova, Technological University DublinFollow
Qiang Wu, Technological University DublinFollow
Gerald Farrell, Technological University DublinFollow

Document Type

Article

Rights

Available under a Creative Commons Attribution Non-Commercial Share Alike 4.0 International Licence

Disciplines

Electrical and electronic engineering

Publication Details

Optics Letters, Vol. 36, 12, 2011, pp.2233-2235.

http://dx.doi.org/10.1364/OL.36.002233

Abstract

We propose and experimentally demonstrate an enhanced evanescent field fiber refractometer based on a tapered multimode fiber sandwiched between two single-mode fibers. Experiments show that this fiber sensor offers ultrahigh sensitivity [better than 1900 nm/RIU at a refractive index (RI) of 1.44] for RI measurements within the range of 1.33–1.44 , in agreement with the theoretical predictions. This is the highest value reported to date (to our knowledge) in the literature.

DOI

https://doi.org/10.1364/OL.36.002233

Recommended Citation

Wang, P., Brambilla, G., Ding, M., Semenova, Y., Wu, Q., Farrell, G.:A High Sensitivity, Evanescent Feld Refractometric Sensor Based on Tapered Multimode Fiber Interference. Optics Letters, Vol. 36, 12, 2011, pp.2233-2235. doi:10.1364/OL.36.002233