A novel, highly precise characterization technique of integrated-photonic devices shown at a high order W-state generator
René Heilmann, Markus Gräfe, Lukas J. Maczewsky, Stefan Nolte, Alexander Szameit · Conference on Lasers and Electro-Optics · 2016
Evanescent coupled waveguides could be used to build multipartite inferometeros, which create an optical quantum state generator. The characterization of these integrated photonic devices needs a large effort and experimental expertise. We develop a method to reduce the measurement steps rapidly by using classical laser light. We show the application of this technique on a laser written W-state generator of the order N = 8.