Highly Integrated Optical 4 X 4 Crossbar In Silicon-On-Insulator Technology

In this paper, we present the design, fabrication, and characterization of a highly integrated optical 4 x 4 crossbar based on microring resonator add-drop filters. The designed crossbar structure, as small as 50 mu m x 50 mu m, has been fabricated in CMOS compatible silicon on insulator technology. Finally, experimental results proving the proper operation of the fabricated crossbar structures are discussed.