7d13987c195caa108f5-30cc 20250325122024177 beie:beie director@blueeyesintelligence.org WEB-FORM International Journal of Innovative Technology and Exploring Engineering IJITEE 22783075 10.35940/ijitee https://www.ijitee.org/ 03 30 2025 14 4 Associate Professor, Department of Electronic and Computer Engineering, Lagos State University/Industry, Lagos, Nigeria. Yussuff I. O. Abayomi https://orcid.org/0000-0003-3829-9944 Adedeji Ayodele Department of Electronic and Computer Engineering, Lagos State University/Industry, Lagos, Nigeria. This study involved quantitative evaluation of the performance of dispersion and polarization of light in fibre optic link for broadband communication. The dispersion that occurs in the transmission of signal over a separation of 120km at 100 Gbps were studied, and uniform chirped fiber Bragg grating dispersion compensation adopting three particular setups of Pre, Post and Mix dispersion compensation procedures. Optical fiber is a medium of slender glass or plastic strands, empowers high-speed data transmission across extensive frequency ranges, spanning up to 25THz, and this was achieved without signal amplification. However, as data rates and transmission distances escalate, challenges stemming from nonlinearities and dispersion intensify, impacting overall performance. This study is devoted to tackling these challenges through the deployment of Fiber Bragg Gratings (FBGs) in three distinct configurations: Pre, Post, and Mix dispersion compensation. Its principal objective is the correction of dispersion in a 120 km transmission operating at 100 Gbps. The results obtained from each of the three compensations methods employing Optisystem simulation application software were then analysed using key performance metrics such as Bit Error Rate (BER), Quality Factor (Q-Factor), and received power to identify the best compensation method with the ultimate aim of significantly enhancing signal transmission performance. Postcompensation of UFBG shows best performances by exhibiting the highest quality factor, lowest BER and power requirements of the three compensation techniques. Hence, UFBG Post-compensation is recommended to mitigate chromatic and polarization dispersions in fibre optic transmission systems. The findings of the work will provide useful information in the design and manufacture of fibre optic transmission equipment for long-haul data communication systems. 03 30 2025 03 30 2025 21 26 CC-BY-NC-ND 4.0 10.35940/BEIESP.CrossMarkPolicy www.ijitee.org true International Journal of Innovative Technology and Exploring Engineering (IJITEE) Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP) Based on my understanding, this article has no conflicts of interest. This article has not been sponsored or funded by any organization or agency. The independence of this research is a crucial factor in affirming its impartiality, as it has been conducted without any external sway. The data provided in this article is exempt from the requirement for ethical approval or participant consent. The adequate resources of this article are publicly accessible. The authorship of this article is contributed equally to all participating individuals. 10.35940/ijitee.F8208.14040325 https://www.ijitee.org/portfolio-item/F820813060325/