Implementation of a thermally loaded EDFA amplifier into a WDM-PON optical network

With deployment and continuous development of optical routes, the issues concerning the thermal loading of erbium-doped optical fibres become more and more relevant. As we were able to see a significant expansion of optical communication systems in the recent years, it was also necessary to find ways for bridging longer distances between individual points of the optical route. Modern optical telecommunication routes mainly use the DWDM system and optical transmission in the C and L bands. For this purpose, optical amplifiers that are mainly based on erbium doping are used. The aim of this paper is to point out the issues associated with the implementation of erbium-doped amplifying fibres into optical transmission routes that are made using the WDM-PON technology, with regard to the thermal load of these amplifying fibres.

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