Abstract
The introduction of erbium-doped-fiber optical amplifiers (EDFA’s) has eliminated fiber loss as a fundamental limit to achievable transmission distance. However the embedded fiber plant throughout the world largely contains "normal-dispersion" fiber with a group-velocity dispersion of ~16 ps/km/nm in the erbium-amplifier bandwidth. Therefore, chromatic dispersion is a primary limitation in optically-amplified systems using embedded fiber. Compensation of this dispersion is very important.
© 1993 Optical Society of America
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