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Integrated, asymmetric twin-waveguide ultrafast all-optical switch

Studenkov, P. V. and Gokhale, M. R. and Wei, J. and Lin, W.C. and Glesk, Ivan and Prucnal, P.R. and Forrest, S.R. (2000) Integrated, asymmetric twin-waveguide ultrafast all-optical switch. IEEE Lasers and Electro-Optics Society Annual Meeting, 2. pp. 645-646. ISSN 1092-8081

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The monolithic integration of a terahertz optical asymmetric demultiplexer (TOAD) in an asymmetric twin-waveguide structure is demonstrated. Signal switching is accomplished via nonlinear gain compression and phase shifts in the semiconductor optical amplifiers (SOAs) induced by a control pulse propagating in the direction opposite that of the signal.