Investigation of RSOA based WDM-PON network

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Dr. Gerhátné Udvary Eszter
Department of Broadband Infocommunications and Electromagnetic Theory

The ever increasing bandwith needs, demands new access network architectures with more capacity. The most important is the optical access network, wich pursues to put optical cables as close as possible to the subscribers. In this thesis I aim to help developing a new technology, in the way of making simulations, that allows conclusions about a device’s applicability in the technology. Simulations are beneficial in the cases when circumstanses doesn’t allow actual measurement, because the risking of operation, or the lack of infrastructure, or access.

The data processing speed of electronic devices cause a problem to achieve the increased capacity. Pure optical transmission provides a solution to this, but it is not yet widespread. This thesis is to present and investigate the applicability of a device, that makes optical domain modulation and amplification in the same time. The Reflective Semiconductor Optical Amplifier’s (RSOA) great advantage is that it modulates, reflects and strengthens the input signa. The question is, how well does it. In this paper I simulate the behavior of my the device based on the real measurements, and analyze the access optical network applicability.

The thesis consists three main parts, the first part is the research of literature in wich I present optical access network architectures and technologies and their implementation discussed in the literature. The second part will examine the RSOA operating principle and simulation models, adjusts the device based on my colleague’s measurement results of the device, which results I attached to the annex. The third part simulates the device’s characteristics in the transmission network and appreciate them based on the simulations.


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