Silicon-plus photonic devices for on-chip light-manipulation and photodetection

Silicon photonics has become very popular because of the compatibility with mature CMOS technologies. However, it is still very difficult for pure silicon to realize various photonic devices for large-scale photonic integrated circuits due to the material intrinsic properties. Currently silicon-plus photonics, which introduces some specific optoelectronic materials on silicon to overcome the shortcomings of silicon, is becoming more and more attractive a very important role. This paper gives a review and discussion on silicon-plus photonics, including the structures, devices and applications for on-chip light-manipulation and photodetection.