Performance Evaluation of Passive Optical Network Using Different Modulation Formats

Abstract

AbstractIn this paper, the performance of passive optical network is analyzed and compared for different modulation formats such as non-return to zero (NRZ), return to zero (RZ) at 2.5 Gb/s bit rate with 16 optical network units. This system is investigated in terms of quality (Q)-factor, optical received power and eye height at different transmission distances. NRZ achieves maximum transmission distance up to 48 km having Q-factor of 6.18 and RZ achieves the maximum transmission distance up to 41 km having Q-factor of 6.21. Furthermore, it is found that NRZ modulation format is more superior and covers more distance as compared to RZ modulation format.