Nonlinear silicon-on-insulator waveguides for all-optical signal processing.
Values up to gamma=7 x 10(6)/(W km) for the nonlinear parameter are feasible if silicon-on-insulator based strip and slot waveguides are properly designed. This is more than three orders of magnitude larger than for state-of-the-art highly nonlinear fibers, and it enables ultrafast all-optical signal processing with nonresonant compact devices. At lambda=1.55 microm we provide universal design curves for strip and slot waveguides which are covered with different linear and nonlinear materials, and we calculate the resulting maximum gamma.
Koos
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C
Institute of High-Frequency and Quantum Electronics, University of Karlsruhe, 76131 Karlsruhe, Germany. C.Koos@ihq.uka.de
Jacome
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L
Poulton
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C
Leuthold
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J
Freude
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W