Abstract
Integrated optical interconnect systems are getting higher attention due to continuously increasing data rates in computer systems. For the realization of these systems, optical waveguide components are needed. One possible approach to manufacturing graded-index waveguide components is their embedding in thin glass sheets by thermal diffusion processes. In this work, MMI-based optical splitters are compared to corresponding Y-branch waveguides. The two splitter archetypes are compared with respect to excess loss. Furthermore, fundamental problems of graded-index MMI-based power splitters are presented and discussed.
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