DESIGN STUDY AND SIMULATION OF A DIGITAL FIBER COMMUNICATION SYSTEM USING (OPTISYSTEM.10)

Recent digital fiber optic communication systems address modulation and detection techniques for high spectral efficiency and robustness against transmission impairments. The proposed objective of this project is to design studies and analyze the simulation model of a Digital Fiber Communication System using (optisystem.10), as well as the front - end components and units used to implement them. Using the most suitable settings of the system which include laser tran smitter with (1310nm) and (1550nm) wavelengths as input power (dBm), optical fiber with both (SM and MM) cable types as channel length (km),(RZ and NRZ) modulationand demodulation schemes to maximize spectral efficiency and power efficiency by encodin g information are analyzed in order to evaluate their penalization over the signal qualityat the receiver.There are three different parameters will be investigated which are output power (dBm), noise figure (dB), and transmittance for the two types of fibe rs .