Highly Integrated Optical 4 $\,\times\,$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 mum x 50 mum, has been fabricated in CMOS compatible silicon on insulator technology. Finally, experimental results proving the proper operation of the fabricated crossbar structures are discussed.

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