Optimal dispersion maps for multichannel soliton transmission with distributed Raman amplification

Boscolo, Sonia; Turitsyn, Sergei K. and Blow, Keith J. Optimal dispersion maps for multichannel soliton transmission with distributed Raman amplification. IN: Proceedings of the workshop nonlinear physics. Ablwitz, M.J.; Boiti, M.; Pempinelli, F. and Prinari, B. (eds) World Scientific.

Abstract

Using an asymptotic theory and a momentum method, we identify a family of dispersion management schemes with distributed Raman amplification, which are advantageous for massive multichannel soliton transmission. For the case of two-step dispersion maps, special schemes are found that have optimal (chirp-free) launch point locations that are independent of the fibre dispersion. Despite the variation of dispersion with wavelength due to the fibre dispersion slope, the transmission in several different channels can be optimized simultaneously using the same optimal launch point. The theoretical results are verified by direct numerical simulations.

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