Abstract
Fiber dispersion is a severe constraint to be addressed in high speed optical communication, as it restricts the transmission capacity and reach of fiber optics link. This work presents an effective dispersion compensation technique in the optical domain with minimal hardware complexity. Here, we integrated a single linearly chirped fiber Bragg grating (CFBG) with tanh apodization for Chromatic Dispersion (CD) compensation and a second-order optical FIR filter for Polarization Mode Dispersion (PMD) compensation. Adaptive PMD compensation is obtained by updating the filter parameters using Least Mean Square (LMS) error algorithm, which enables the system to adjust and mitigate PMD effects dynamically, enhancing overall efficiency. The performance of the proposed system with different modulation schemes such as NRZ, RZ, and duo-binary schemes are experimented. A WDM link of 16 channels over 100 km is designed with the proposed model, with each channel transmitting data at 40 Gbps. Simulation results reveal that the presented model performed well with reduced hardware complexity, keeping BER value below \(10^{-9}\) and Q-Factor above 6.
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This work is supported by the Directorate of Technical Education (DTE), Government of Kerala under the Ph.D Research fellowship programme of the APJ Abdul Kalam Technological University (KTU).
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Sreeragi, G.R., Vijayakumar, N. & Pradeep, R. A novel approach integrating CFBG and optical filters to mitigate CD and PMD effects in high speed DWDM fiber optic links. Opt Quant Electron 56, 1283 (2024). https://doi.org/10.1007/s11082-024-07206-9
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DOI: https://doi.org/10.1007/s11082-024-07206-9