Abstract
A traveling-wave semiconductor laser amplifier (TWA) [1]-[4] can greatly simplify optical repeaters used in wavelength-division-multiplexed (WDM) systems, since its wide gain band width allows a single TWA to simultaneously amplify signals of different wavelengths. Even though such system performance in the linear gain regime is determined only by amplifier noise properties [5],[6], the onset of nonlinear effects in optical amplifiers result in crosstalk [7].
© 1991 Optical Society of America
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