Agrawal, N.N.AgrawalWeinert, C.M.C.M.WeinertEhrke, H.-J.H.-J.EhrkeMekonnen, G.G.G.G.MekonnenFranke, D.D.FrankeBornholdt, C.C.BornholdtLangenhorst, R.R.Langenhorst2022-03-032022-03-031995https://publica.fraunhofer.de/handle/publica/18744910.1109/68.388751We report fast 2*2 Mach-Zehnder optical space switches by using quantum confined Stark effect in InGaAsP-InP multiquantum-well structures that are ultracompact, require low voltages, and employ a simple RF drive with RC time-constant limited lumped electrodes. Cut-off frequencies in excess of 10 GHz are observed suitable for a variety of fast optical switching applications.enelectro-optical switchesgallium arsenidegallium compoundshigh-speed optical techniquesiii-v semiconductorsindium compoundsoptical communication equipmentquantum confined stark effectsemiconductor quantum wellsmach-zehnder optical space switchesInGaAsP-InP multiquantum-well structuresrf driverc time-constant limited lumped electrodescut-off frequenciesfast optical switching applications10 GHzInGaAsP-InP621535journal article