All-optical switching schemes are essential for ultrafast optical information processing. The all-optical routing switch, including multiplexing and demultiplexing,1 is one of the most basic and important functions in time division multiplexing (TDM) optical fiber transmission systems. Here we propose a novel ultrafast all-optical routing switch utilizing an optical carrier frequency shift induced by a temporally synchronized intense pump pulse through cross-phase modulation (XPM)2-4 in optical fibers.

© 1990 Optical Society of America

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