Ciret, CharlesCoda, VirginieRangelov, Andon ANeshev, DragomirMontemezzani, G.2015-12-100146-9592http://hdl.handle.net/1885/66743We introduce a novel achromatic and robust scheme for n-fold multiple beam splitting based on adiabatic light transfer in a planar geometry of coupled waveguides (WGs). The concept is experimentally verified for a one-to-three beam splitter by using a reconfigurable light-induced WG structure at two operating wavelengths. The demonstrated planar-type achromatic beam splitter opens new opportunities for the realization of ultra-high bandwidth on-chip photonic devices.Author/s retain copyrightKeywords: Coupled waveguides; Light transfer; Multiple beam; Multiple beam splitter; On chips; Operating wavelength; Planar geometries; Ultra-high bandwidth; Optical instruments; Prisms20122016-02-24