On the channel capacity of multilevel modulation schemes with coherent detection

Ivan B. Djordjevic; Lei Xu; Ting Wang

doi:10.1117/12.851122

1 December 2009 On the channel capacity of multilevel modulation schemes with coherent detection

Ivan B. Djordjevic, Lei Xu, Ting Wang

Proceedings Volume 7632, Optical Transmission Systems, Switching, and Subsystems VII; 76320W (2009) https://doi.org/10.1117/12.851122
Event: Asia Communications and Photonics, 2009, Shanghai, Shanghai , China

Abstract

We describe a method to determine the channel capacity of an arbitrary multilevel modulation scheme by modeling the fiber-optic channel as a dynamical nonlinear ISI channel with memory. We also propose a multilevel turbo-equalization scheme that is able closely to approach the channel capacity. We show that with this scheme we are able straightforwardly to upgrade currently installed 10 Gb/s optical transmission systems to 100 Gb/s, and even with small memory assumption we are able to achieve 100 Gb/s per DWDM channel transmission over 9600 km.

Citation Download Citation

Ivan B. Djordjevic, Lei Xu, and Ting Wang "On the channel capacity of multilevel modulation schemes with coherent detection", Proc. SPIE 7632, Optical Transmission Systems, Switching, and Subsystems VII, 76320W (1 December 2009); https://doi.org/10.1117/12.851122

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