Abstract
The Erbium-Doped Tiber Amplifier (EDFA) has had a profound impact on the design, operation and performance of transoceanic cable transmission, and is central to the expected proliferation of cable systems. Laboratory experiments have demonstrated 100 Gb/s over transoceanic distances using Wavelength Division Multiplexing (WDM) techniques. These large transmission capacity experiments have resulted from an increased understanding of the effects that can limit performance of WDM systems. Important strides have been made in areas of dispersion management, gain equalization, and modulation formats which have made possible the demonstration of large data transmission capacity. This paper reviews experimental techniques developed to improve the performance of long-haul WDM transmission systems based on the Non-Return-to-Zero (NRZ) format, and other non-soliton methods.
© 1996 Optical Society of America
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