Performance evaluation of radio over fibre using dual-parallel Mach-Zehnder modulators for millimeter wave generation

Abstract

Two cascaded, dual-parallel Mach-Zehnder modulators (DP-MZMs) at 2.5 and 5 GHz radio frequency (RF) transmissions, along with 36-tupling in radio over fibre (RoF), have been suggested for a millimeter wave generation at 90 GHz and 180 GHz. To optimize the quality of the signal, the performance of the generated millimeter wave was assessed at the receiver. The bit rate was successfully adjusted up to 20 Gbps over a 50 km single-mode fibre to verify the system ability and manage a greater data flow. The proposed parametric research is graphically analysed at 10 and 20 Gbps with a minimal bit error rate (BER) of 10^–9. Fibre length, BER, quality factor, optical sideband suppression ratio (OSSR), and radio frequency sideband suppression ratio (RFSSR) are considered for performing the characteristics analysis. This research provides an extremely high-frequency multiplication factor for major applications in millimeter wave technology.