Abstract
In the early nineties, after the advent of the erbium-doped fiber amplifier, fiber dispersion was the main obstacle in optical communication systems. Dispersion-shifted fibers (DSF) were brought out as the solution and installation was widespread. Later, wavelength division multiplexing (WDM) was introduced to increase the utilization of the fiber bandwidth but in combination with DSFs, the performance turned out to be degraded due to fiber four-wave mixing (FWM) inducing crosstalk between the channels [1].
© 2000 Optical Society of America
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