The propagation characteristics of optical fiber play a very important role in the design of a fiber optic communication system. In this paper, we have analyzed the Propagation Characteristics of Bragg fiber using transfer matrix method and have also found the modal filed distribution of the fundamental mode of Bragg fiber. We haves worked on the MATLAB and used its optical waveguide tool box for generation our results.

This time domain analytical analysis of Radio over Fiber (RoF) system is derived regarding the performance evaluation of external modulation schemes such as optical single side band (OSSB), optical double side band (ODSB) and optical vestigial side band (OVSB) based on mach-zehender modulator (MZM) and phase modulator (PM). It is found that performance related signal to noise ratio is deeply related to the bandwidth of receiver filter and the influence of phase noise is more dominated from a radio frequency signal oscillator rather than the form a laser source in a small differential delay environment. Further, commercial available, economic laser with OVSB scheme help the telecom industry to reduce the designing cost of RoF system. KeywordsOptical single side band (OSSB), Optical double side band (ODSB), optical vestigial side band (OVSB), MZM configuration, radio over fiber.