MMI plus simplified coherent coupling to design a small footprint SOI power splitter

In this letter we introduce a new approach to fabricate under SOI platform very small footprint power splitter. The proposed strategy of design is based on the well-known simplified coherent coupling. The sensibility of design parameters are also analyzed and discussed in this paper. By this approach very compact device can be designed and open a new avenue to improve and enhance the performance of integrated devices developed under SOI scheme.