Design and Optimisation of L+ Band Fibre Optic Amplifier (1600-1650nm)

Abstract

With the rapid development of the information age, there is an increasing demand for broadband high-speed communication systems and high-quality signal transmission. Numerous optical communication applications exist for the L+band fiber amplifier, providing high gain and low noise amplification effects. This report aims to improve the performance of L+band fibre amplifiers by researching and developing praseodymium-doped fibre materials and optimising various parameters and structures of fibre amplifiers. Through this study, we hope to provide an economical, and we hope to provide an economical and efficient design and optimization solution for L+band praseodymium ion doped fibre amplifiers, making them an essential component of optical communication systems. Improving the signal gain and quality provides a reliable signal amplification solution for the optical communication system to meet the challenges of high-speed and high bandwidth data transmission requirements in Kobee. In the established praseodymium doped fibre amplifier, 488nm wavelength was used as the pump light wavelength, 1625nm wavelength as the signal light wavelength, and a four-level system was used for analysis. After experiments, through three-dimensional diagrams and simulation optimisation algorithm results, the amplifier gain After investigations, the progress of the amplifier shows a specific positive growth with the increase of fibre length and doping ion concentration. When the fibre length increases to 2.479m, the gain of the amplifier no longer changes with the rise of fibre length—the concentration of doped ions.