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We have investigated and demonstrated a novel scheme to generate orthogonal frequency division multiplexing (OFDM) signals for Radio Over Fiber (ROF) systems using a direct-modulation laser (DML). We employ the Fiber Bragg Grating (FBG) because the bandwidth of the optical modulator is largely reduced and the architecture of the ROF system is simpler. The 40 GHz optical mm-wave signal was generated...
We have demonstrated a novel 22 Gbit/s 64 QAM scheme to generate orthogonal frequency division multiplexing (OFDM) signals for radio over fiber (ROF) systems using cost-effective optical filter fiber Bragg grating (FBG). We employ the FBG because the repetitive frequency of the RF source and the bandwidth of the optical modulator are largely reduced and the architecture of the ROF system is simpler...
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