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Nonlinear all-optical regenerators

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Abstract

An optical regenerator receives the optical pulse train which was attenuated and distorted by the transmission medium and transmits an amplified reshaped version of the same pulses. Regenerators are necessary not only in communication systems but also In many schemes for digital optical processing and optical computing. Here we propose an all-optical traveling-wave device, which can perform thresholding, amplification, and reshaping without transforming the optical pulses into electrical ones. The device combines saturable optical gain and loss as well as unsaturable loss. For simplicity we will assume the system to be an homogeneous mixture of three independent components, gain, saturable loss, and unsaturable loss, although some advantages may be obtained by varying the relative concentrations of these species along the propagation direction.

© 1986 Optical Society of America

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