Flexible real-time transmitter at 10 Gbit/s for SCFDMA PONs focusing on low-cost ONUs

• Published in: Proceedings of the 2014 Conference on Design and Architectures for Signal and Image Processing pp. 1 - 8
• Main Authors: Meder, L., Schindler, P. C., Agmon, A., Meltsin, M., Bonk, R., Meyer, J., Dreschmann, M., Tolmachev, A., Hilgendorf, R., Nazarathy, M., Ben-Ezra, S., Pfeiffer, T., Freude, W., Leuthold, J., Koos, C., Becker, J.
• Format: Conference Proceeding
• Language: English
• Published: European Electronic Chips & Systems design Initiat 01.10.2014
• Subjects: Bandwidth; Discrete Fourier transforms; OFDM; Optical network units; Optical transmitters; Passive optical networks
• DOI: 10.1109/DASIP.2014.7115601

We demonstrate, to the best of our knowledge, the first real-time single-carrier frequency division multiple access transmitter designed to be used in photonic communication networks. It is capable of providing 10 Gbit/s net bitrate at 3.125 GHz slot bandwidth, providing data to nine quasi-Nyquist spectral groups. The transmitter is designed with respect to logic efficiency and a fine user grid allowing the operation of narrow bandwidth, low-cost optical network units. Moreover, it offers runtime flexibility, an efficient 96-point discrete Fourier transform and a multiplier-free differential phase encoder. The article concludes with a presentation of the transmitters hardware setup and an evaluation of its performance in the case of direct electrical AWG-ONU Rx interconnection and the optical back-to-back case.