Real-time Coherent Optical OFDM Receiver for Intradyne Detection in High Data Rate Transmission

We review an implementation of real-time coherent optical OFDM receiver in FPGAs. 28.6-Gb/s data per optical wavelength is demonstrated in intradyne detection. QPSK modulated sub-carriers are detected using 9.83-GS/s ADCs and DSP implemented on FPGAs.