BIOGRAPHY
Sangyoon Han is a PhD candidate in the Electrical Engineering and Computer Sciences department at UC Berkeley. His research is focused on implementing optoelectronic devices on Silicon Photonic platform using MEMS technologies.

Sangyoon received his B.S. degree in Electrical Engineering and Computer Sciences from Seoul National University in 2010.

Multicast Silicon Photonic MEMS Switches [BPN820]
Silicon photonic switches have been developed for fast and low-cost optical switching. However most of demonstration is still limited in unicast operation. In this project, we develop a silicon photonic switch that is capable of multicast switching. We have implemented silicon photonic switches with movable waveguide couplers that can control power splitting ratio precisely. The switch has 4x20 ports, fast switching time (<9.6 us), low optical insertion loss (<4.0 dB), and small footprint (1.2 mm x 4.5 mm). We have demonstrated 1- to-2 and 1-to-4 multicast operation with the switch.