Abstract
Parametric amplifiers have been proposed [1] as an alternative to lumped erbium-doped amplifiers for long-distance optical pulse propagation in fibers. While filtering techniques [2] have been demonstrated to suppress the bit-rate limitation caused by the Gordon-Haus jitter [3] — the random walk of solitons caused by spontaneous emission noise of the erbium amplifiers, or by initial fluctuations in the soliton parameters — a chain of lumped parametric amplifiers should have higher possible bit-rates because no such amplifier noise is present [1].
© 1993 Optical Society of America
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