Performance Analysis of Radio over Fiber System with External Modulation including the Effect of Fiber Dispersion
نویسندگان
چکیده
Radio-over fiber technology (RoF) fulfills the demand of future wireless services. In this paper, simulative analysis of radio-over fiber system employing external modulation using MachZehnder modulator is carried out by considering the effect of fiber dispersion. Analytical and simulative analysis shows the periodic behaviour of system with respect to modulation index and length of the optical fiber. The present analysis shows that the fading of radio frequency (RF) signal amplitude having cyclic variation depends on modulation index. In this paper the fundamental and upto 2 nd order harmonics of modulation sidebands which are generated by nonlinear response of optical modulator are studied.
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