Composites have added new dimensions to the design and fabrication of various structures. These structures are usually used to withstand hefty loads, so their integrity must be guaranteed. Due to optical sensors' advantages and FBGs' unique position among optical fibre sensors, we propose in this paper the integration of FBG sensors for the monitorisation of the curing temperature and strain of multidirectional carbon-reinforced polymer cured by microwave radiation heating method and for strain monitoring of a fibre reinforced polymer pultrusion beam.