OPTICAL CHARACTERIZATION OF PMMA DOPED WITH AN ORGANIC POLYMER

In the field of communication, optical fiber has a vital role in transmitting light between two ends of the fiber. Optical fiber is made of three layers core, cladding and outer jacket. The significant property of optical fiber is that, the refractive index of core must be greater than the cladding. Mostly silicon is used as the core material in the making of optical fiber. Here, we are replacing silicon by PMMA which has good refractive index than silicon. Doping of different polymers of high refractive index possess greater optical properties. In this project, core is made by doping of two different polymers by the method of spin coating. Two samples are made and its optical characterization is done by FTIR analysis, which indicates the various optical properties of the sample. XRD has also been done for the sample to know its crystalline structure. Optical properties of two different samples have been compared for better results. The characterization of the sample is done at the wavelength of 600-850 nm in which it is used for small distance communication.