Martinelli, L.L.MartinelliBenisty, H.H.BenistyKhayam, O.O.KhayamDuan, G.-H.G.-H.DuanHeidrich, H.H.HeidrichJaniak, K.K.Janiak2022-03-032022-03-032007https://publica.fraunhofer.de/handle/publica/21361910.1109/JLT.2007.901525A wavelength selective lateral outcoupler based on multimode photonic-crystal waveguides (WGs) is presented. Its fundamental advantages are a small footprint, an inherently flexible and versatile design, and a natural WG integration. Devices can serve demultiplexing or monitoring purposes. We numerically discuss design and optimization issues and corresponding details of experimental investigations.en621535journal article