Detection Of Impurities Using A Silpg Sensor Embedded Into Graphene Reinforced Composites

Aluminum composites reinforced with graphene nanosheets and composites having a polymer matrix reinforced with graphene nanoparticles are materials which appear to have an increasing number of various research and industrial applications. For both kind of materials upgradation to smart status by using embedded Long Period Grating Fiber Sensor (LPGFS) operated in simple or in a Self-Interference Interferometer (SILPG) setups as an impurity monitoring device of a feedback automatization loop is of interest. The main purpose of the paper is to present results obtained in simulation/design of smart composite materials of the two material types. It is important to emphasize that the approach used in developing the simulations considers both cases of ambient (graphene nanosheet or polymer matrix reinforced with graphene nanoparticles) refractive index (RI) lower or larger than the optic fiber one.