In this paper, we studied the effect of the phase noise caused by the intrinsic analog optical link noise on orthogonal frequency-division multiplexing (OFDM) systems. The effect of this additive phase noise in the demodulation has been investigated by both numerical simulations based on a theoretical analysis and experiments using a low cost Vertical Cavity Surface Emitting Laser (VCSEL). The phase noise effect of the analog link on 64 QAM OFDM signal transmission when the laser relative intensity noise (RIN) is -131dB/Hz is investigated and found to be very small.
Phase noise effects on directly modulated 64-QAM OFDM radio-over-fiber systems
2011-10-01
1151414 byte
Conference paper
Electronic Resource
English
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