First integrated combiner based on self-switching in quantum dots

E.A. Patent, J.J.G.M. Tol, van der, P.R.A. Binetti, Q. Gong, Y.S. Oei, R. Nötzel, J.E.M. Haverkort, P.J. Veldhoven, van, J.H. Wolter, M.K. Smit

Research output: Contribution to journalArticleAcademicpeer-review


We demonstrate all-optical switching in quantum dots (QDs). The switching is studied in an integrated optical combiner circuit. This is a Mach–Zehnder interferometer with an unequal power distribution over the branches. The refractive index is intensity dependent in the branches due to the QDs. Large all-optical nonlinearities are measured. This device is aimed to avoid an unwanted 3-dB loss, fundamental in passive optical splitters.
Original languageEnglish
Pages (from-to)2308-2310
Number of pages3
JournalIEEE Photonics Technology Letters
Issue number10
Publication statusPublished - 2004


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