Power efficient optical serial-to-parallel conversion using fractional OFDM-based linear technique

Power efficient optical serial-to-parallel conversion is proposed using a linear technique based on Fractional OFDM scheme. A Fractional OFDM can mediate between N-OTDM and OFDM without any nonlinear signal processing and it is expected to incorporate both benefits of the densest serial and parallel features of N-OTDM and OFDM as well as power efficiency of a linear technique. The preliminary operation of serial-toparallel conversion is verified so that a 10GHz sine wave serial signal could be optically sampled by triple Nyquist pulses and be converted to three parallel intensity modulated signals at three Fr-OFDM channels.

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