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Bias control of Mach-Zehnder electro-optic modulator is important for the performance of radio-over-fiber links. In this paper, a digital controller has been developed in order to keep the bias point at any target value, making the modulator exhibiting great long-term stability. Furthermore, this method was applied in radio-over-fiber links to optimize their performance, such as RF gain, noise figure,...
A simple and low-cost method for improving RF performance in phase modulation radio-over-fiber (RoF) systems by using stimulated Brillouin scattering (SBS) is proposed and demonstrated. We present a simple analytical model to assess the relationship between performance improvement of the phase-modulation RoF link and the carrier suppression ratio x. The experiment results show good agreement with...
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