Abstract

All-optical signal processing attracts much attention to overcome the speed limitations imposed by the electrical circuits. An all-optical switching scheme using intensity-dependent refractive index in Kerr media, especially optical fibers, is one of the promising candidates for processing incoming densely time-multiplexed signals, namely optical demultiplexing, optical routing, and logic operations. To date, many excellent works on polarization switching[1], Mach-Zehnder[2] or Sagnac interferometer switching[3],[4],[5] have been presented for realizing the above functions.

© 1991 Optical Society of America