Abstract In optical fiber communication, signals are transmitted as light pulses over long distances through optical fibers. During transmission, these pulses experience losses primarily due to attenuation and dispersion, which degrade the system’s overall performance and reduce available bandwidth. As modern applications demand higher data rates and broader bandwidth, managing dispersion becomes increasingly important. Dispersion is a key factor that limits transmission efficiency by causing pulse broadening, which in turn shortens the transmission distance and lowers the achievable bit rate. To enhance system performance and support higher bit rates, various dispersion compensation techniques are employed. In this study, we use OptiSystem version 7.0 to model and evaluate the effectiveness of different compensation methods – pre-compensation, post-compensation, and symmetrical compensation. Dispersion compensating fiber (DCF) is used across varying transmission lengths to analyse its impact. Performance metrics such as quality factor (QF), bit error rate (BER), and eye diagrams are assessed at the receiver to determine the effectiveness of each compensation technique.
Goyal et al. (Thu,) studied this question.