Design of two-dimensional 1 x 16 and 1 x 32 array waveguide optical power splitters

Silicon will play a practical role in the future optoelectronics devices. Silicon microelectronics fabrication techniques can be largely exploited to fabricate low-loss and high volume optical devices. In this paper, we report the concept and realization of new two-dimensional 1 x 16 and 1 x 32 array waveguide optical power splitters that offer the possibility of a free choice of the output power ratio in silicon-on-insulator (SOI). The power splitters compose one dimensional multimode interference (MMI) optical power splitter and multi-layers coupler at wavelength 1.55 mu m. According to the design, we can reduce the size of SOI power splitters waveguide without increasing propagation loss, efficiently. The results achieved show a remarkable improvement with respect to those of classical MMI power splitters.