Optical sensing with photonic crystal fibers

A review of optical fiber sensing demonstrations based on photonic crystal fibers is presented. The text is orga- nized in five main sections: the first three deal with sensing approaches relying on fiber Bragg gratings, long-period gratings and interferometric structures; the fourth one reports applica- tions of these fibers for gas and liquid sensing; finally, the last section focuses on the exploitation of nonlinear effects in pho- tonic crystal fibers for sensing. A brief review about splicing with photonic crystal fibers is also included.

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