Diseño e implepentación de una red polan para interconectar los campus de la Universidad Politecnica Salesiana sede Quito.

Abstract

The study focused on analyzing the performance of an optical communication system using Non-Return-to-Zero modulation, evaluating different values through the use of a variable optical attenuator. The assessment was conducted in a Passive Optical LAN (POLAN) through two scenarios: implementation on real equipment and simulation using Optsim software. Data were transmitted using the XGS-PON standard over an optical link with a total distance of 13.84 km. At kilometer 8.33, a 1:2 splitter was introduced for the interconnection of the SAN BARTOLO and SUR campuses, using G652D single-mode fiber. Data reception was carried out using a direct-detection photoreceptor. Experimental results indicate that, in the case of data transmission with the XGS-PON standard and applying attenuation with values ranging from 1 to 16 dB, the eye diagram closes when the bit error rate reaches 1.2e-3 with a receiver power of -20 dBm. This phenomenon occurs despite the short distance, which is less than 20 km, due to the transmission speed. It is important to note that the closure of the eye diagram at this level of bit error rate could have significant implications for transmission quality. These findings suggest that variation in the variable optical attenuator can play a crucial role in optimizing the performance of the optical communication system, especially at short distances where transmission speed can impact signal integrity.