Analysis of radio over fiber system's performance after optimizing delay interferometer's parameters and incorporating low pass Chebyshev filters at the receiver

摘要

Radio over fiber is generally incorporated to send data of radio frequency range via fiber optic cable. The main reason behind using fiber optic cable is its high speed of transmission, large Bandwidth and less attenuation. In this paper a modified Radio over Fiber system is proposed by implementing Low pass Chebyschev filter at the receiver and by optimizing interferometers parameter. It was found that proposed system's Q-factor was 47% higher at low bit rates and 124% higher at high bit rates as compared to previously proposed RoF system [1]. Also, with respect to length of fiber there was significant Q factor for long optical fiber cables. Moreover, BER was zero till 2.7 Gbps, which increases the feasibility of our system by a huge extent in comparison to earlier RoF systems [1]. Simulations were done using optisystem software [2].