Title :
First integrated combiner based on self-switching in quantum dots
Author :
Patent, E.A. ; van der Tol, J.J.G.M. ; Binetti, P.R.A. ; Gong, Q. ; Oei, Y.S. ; Nötzel, R. ; Haverkort, J.E.M. ; van Veldhoven, P.J. ; Wolter, J.H. ; Smit, M.K.
Author_Institution :
Opto-Electron. Devices Group, Eindhoven Univ. of Technol., Netherlands
Abstract :
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.
Keywords :
Mach-Zehnder interferometers; optical phase shifters; optical switches; refractive index; semiconductor quantum dots; Mach-Zehnder interferometer; integrated combiner; intensity-independent refractive index; passive optical splitters; quantum dots; self-switching; Integrated circuit measurements; Integrated optics; Optical interferometry; Optical losses; Optical refraction; Optical variables control; Power distribution; Quantum dots; Refractive index; Switching circuits;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2004.833952
