Abstract
We reduce the switching energy for a soliton dragging inverter down to 1 pJ by separating the switching mechanisms in two different fibers and optimizing each section individually. The digital logic for the inverter is based on time shift keying1 in which a logical one corresponds to a control pulse that arrives within a clock window and a logical zero either to a control pulse outside of the clock window or to no pulse at all. Although our 2 km long logic gate may not be practical, our purpose here is to show that even in fused silica fibers, an all-optical gate can fundamentally approach the 1 pJ switching energy level, which then makes potential applications feasible.
© 1991 Optical Society of America
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