HIGH-SPEED BIDIRECTIONAL 4-CHANNEL OPTICAL FDM-NCFSK TRANSMISSION USING AN ER-3+-DOPED FIBER AMPLIFIER

Abstract

A four-channel optical FDM-NCFSK bidirectional transmission experiment using an Er3+-doped fiber amplifier at 1.7 Gb/s for 100 km fiber length is demonstrated. Using commercial DFB LDs, a received power of -35 dBm at 10(-9) BER is obtained, and the dispersion degradation over 100 km bidirectional transmission is negligible. With channel spacing of about 30 GHz, the differential power penalty is about 0.1 dB.