Ali, FarhanFarhanAliFigeys, BrunoBrunoFigeysShramkova, OksanaOksanaShramkovaJansen, RoelofRoelofJansenRottenberg, XavierXavierRottenbergGehlhaar, RobertRobertGehlhaarGenoe, JanJanGenoe2026-03-192026-03-192025978-1-5106-8856-80277-786Xhttps://imec-publications.be/handle/20.500.12860/58879We demonstrate an ultracompact red-green-blue (RGB) combiner based on multimode waveguides in a silicon nitride integrated photonics platform, achieving a low insertion loss of ~1-2 dB and low footprint (86×2.3 μm2). The proposed combiner enables the development of compact imaging projectors for augmented reality display technologies.engProceedings paper10.1117/12.3056172WOS:001541580000013COMPACT