Freude, W., Hillerkuss, D., Schellinger, T., Schmogrow, R., Winter, M., Vallaitis, T., Bonk, R., Marculescu, A., Li, J., Dreschmann, M., Meyer, J., Ben Ezra, S., Narkiss, N., Nebendahl, B., Parmigiani, F., Petropoulos, P., Resan, B., Weingarten, K., Ellermeyer, T., Lutz, J. and Möller, M. (2010) Orthogonal frequency division multiplexing (OFDM) in photonic communications. International Conference on Fiber Optics and Photonics (Photonics 2010), , Guwahati, India. 11 - 15 Dec 2010.
Abstract
OFDM has emerged as a promising modulation technique in long-haul and access optical networks because of a number of advantages: Scalable spectrum partitioning, good spectral efficiency, dispersion tolerance, and a natural suitability for software-defined transmission. However, there are also issues inherent in OFDM: High peak-to-average power ratio making the system more susceptible to nonlinearity, sensitivity to frequency offset and phase noise, and the required computational complexity. With the advent of powerful digital signal processors and by exploiting all-optical signal processing, some of these obstacles can be overcome.
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