Abstract
In the following work, the optimization of a high bit rate single wavelength channel PolMux transmission system working in the 1310 nm wavelength domain, is presented. Demonstrated method utilizes the interplay between the chirp effect in an electroabsorption modulator and the chromatic dispersion in an optical fibre. By means of the numerical simulations it is shown, that the value of the modulator chirp parameter α can significantly change the maximum allowable value of the accumulated dispersion from +60 ps/nm for α = 0 to +100 ps/nm for α = -0.7. Conducted experiments show that change of a data channel wavelength from 1321.2 nm to 1311.5 nm can significantly decrease the transmission related power penalty in 2×40 Gbit/s experiment with 38 km SSMF as well as 2×50 Gbit/s and 2×56 Gbit/s experiments with 25 km SSMF. Presented method can be utilized to increase the transmission distance of low complexity and high bit rate optical transmission systems like Ethernet.
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