Abstract

Optical amplifiers are quite attractive for use as optical repeaters because of their simplicity and bit rate transparency for both intensity-modulated optical signals1–3 and frequency/phase-modulated optical signals4. Also, recent non-regenerative 904km optical transmission with 12 cascaded Er-doped fiber amplifiers5 has shown the promising future of optical amplifier repeater systems. For further investigations, experimental study on the effect of a large amount of chromatic dispersion is of great importance. This is a report on 2.4Gbit/s intensity-modulated optical signal transmission over 710km of non-dispersion-shifted optical fiber with a total chromatic dispersion of 12300ps/nm. In addition, the effect of transmitter phase noise associated with large chromatic dispersion was experimentally investigated.

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