Study And Simulation Of An Optical Fiber Transmission Chain
Résumé: This thesis focuses on the study and optimization of optical fiber links, which are integral to modern telecommunications due to their high transmission speeds and low transmission losses. Optical fibers are emphasized for their role in high-speed data transmission, with a particular focus on overcoming challenges such as attenuation and dispersion. The work begins with a theoretical study of optical fibers, detailing various types and their physical characteristics. Practical experience was gained at the SONATRACH Technical Center, where transmission techniques, testing, and control methods were learned. Two specific optical links of different topologies, including the HBK-BKH and GLA-HBK links, were studied. The Optical Time-Domain Reflectometer (OTDR) was used to acquire the specific characteristics of each link, identifying issues like breaks and poor splices, and providing continuous descriptions of bitrate and power levels. These parameters were confirmed through simulations using the OPTISYSTEM software, which is designed to perform numerous system tests and optimize the design of optical communication systems. The primary objective of this thesis is to study and simulate the transmission systems to enhance the efficiency and reliability of two vital communication links.
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