Photonic crystal fiber sensor array based on cladding mode resonance

The multiplexing capability of optical fiber sensors is one of their main advantages since it allows the possibility of forming sensor networks or arrays. Here we demonstrate an alternative to built PCF-based point and sensor arrays. We exploit the effect of overlapping between modes in the PCF. The proposed sensors consist of a short length (in the 9-12 mm range) of index-guiding PCF fusion spliced between conventional single mode fibers (SMF).