Document Type

Article

Rights

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

Publication Details

Optics Letters, Vol.31 (3), 2006,pp.317-319 doi:10.1364/OL.31.000317 Available from the Publisher here http://www.opticsinfobase.org/ol/abstract.cfm?uri=ol-31-3-317

Abstract

A novel all-fiber refractometer sensor is proposed, which is based on multimode interference in the multimode fiber core section sandwiched between two single-mode fibers. A wide-angle beam propagation method in the cylindrical coordinate is employed as the modeling tool for simulation and design of the proposed refractometer sensor. The design for a refractometer is presented that shows that the refractometer would have an estimated resolution of 5.4×10−5 for refractive indices from 1.33 to 1.45 and of 3.3×10−5 for refractive indices from 1.38 to 1.45 through the choice of an appropriate length of the multimode fiber core section.

DOI

https://doi.org/10.1364/OL.31.000317

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