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Presented are theoretical investigations and simulations of a reduction of the group velocity dispersion (GVD) in slow-light systems by an optimisation of the gain spectrum of the stimulated Brillouin scattering (SBS). A comparison between a natural Brillouin gain spectrum and a broadened Brillouin gain spectrum with and without two additional losses at its wings is demonstrated. The focus of the theoretical examination was set on the superposition of a gain and two losses with an equal magnitude. Therefore, a low GVD and a high group index change could be achieved and hence, a small pulse distortion and a high time delay can be expected.
Henker, R. et al. (2008) Group velocity dispersion reduction in fibre-based slow-light systems via stimulated Brillouin scattering. Electronics Letters,September 25, 2008, Vol.44, pp.1185-1186. doi:10.1049/el:20082007.