This study shows an easy and effective design of an optical fiber communication system, which demonstrates EDFA's
ideal position in the whole system. In recent years, erbium-doped fiber amplifiers (EDFAs) have been more attentive with the
development of high-speed and long-distance data transmission systems. In our research, EDFA's forward pump capacity is
maintained at 100mW, and our three configurations modify and analyze the location of EDFA. First configuration is meant to
place EDFA before optical fiber in the entire system.