Analysis Of Fiber Dispersion Influence On The Transmission Performance Of ROF Systems

ROF is a new ultra-broadband wireless access technology,however,the fiber dispersion has a significant influence on the transmission performance of ROF systems.In this paper,at first the author analyzes operation principle of LiNbO₃ Mach-Zehnder(LN-MZ) modulator,and deduces the theoretical formula for optically generating millimeter-wave based on LN-MZ modulators;Secondly,simulation models of ROF systems with DSB,SSB and OCS formats are constructed based on the above theoretical formula,and the effectiveness of the millimeter-wave generation method based on LN-MZ modulators are verified by computer simulation;Finally,with the help of the above simulation model of ROF systems and Split-Step Fourier Method to simulate the signal transmission in optical-fiber,the influence of optical-fiber dispersion on the transmission performance of ROF systems is analyzed.The research results of this paper provide some valuable theoretical reference for the future practical applications of ROF systems.