A New Potential Polymeric Cladding Material for Polycarbonate Fibre Optic Core for High Temperature Use

•Solution casting technique was used to study the compatibility between PC and PMMA.•The optical and thermal properties of the PC/PMMA and PMP cladding material were evaluated.•The PC/PMMA blend was compatible at all blending ratio and the optimum blending ratio was found at 80/20.•Both PC/PMMA and PMP cladding materials exhibited an excellent optical and thermal properties.•PMP cladded PCPOF shows a better light transmission and had better performance as compared to 80/20 PC/PMMA cladded PCPOF.