All-optical repeater.
An all-optical device containing saturable gain, saturable loss, and unsaturable loss is shown to transform weak, distorted optical pulses into uniform standard-shape pulses. The proposed device performs thresholding, amplification, and pulse shaping as required from an optical repeater. It is shown that such a device could be realized by existing semiconductor technology.
Silberberg
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Bell Communications Research, Inc., Holmdel, New Jersey 07733, USA.