Schindler, AlexanderAlexanderSchindlerRunge, PatrickPatrickRungeSchell, MartinMartinSchell2025-12-012025-12-012025https://publica.fraunhofer.de/handle/publica/49998010.1109/NUSOD64393.2025.111994532-s2.0-105022069410An adapted wavefront matching (WFM) method for the optimization of high-index contrast waveguides is presented. Amending the WFM method by introducing intermediate refractive index values enables the method to be used for the design of waveguide structures in indium phosphide. As an example, the design of a TE0 to TE1 mode converter is presented.enfalseconference paper