We propose a novel architecture for all-optical add-drop multiplexing of OFDM signals. Sub-channel extraction is achieved by means of waveform replication and coherent subtraction from the OFDM super-channel. Numerical simulations have been carried out to benchmark the performance of the architecture against critical design parameters.
Sygletos, S., Fabbri, S., Giakoumidis, E., Sorokina, M., Marom, D. M., Stephens, M. F. C., Klonidis, D., Tomkos, I., & Ellis, A. D. (2015). Numerical investigation of all-optical add-drop multiplexing for spectrally overlapping OFDM signals. Optics Express, 23(5), 5888-5897. https://doi.org/10.1364/OE.23.005888