Prof. Woo-Young Choi received his B.S., M.S. and Ph.D. degrees in Electrical Engineering and Computer Science from the Massachusetts Institute of Technology. For his Ph.D. thesis, he investigated MBE-grown InGaAlAs laser diodes for fiber optic applications. From 1994 to 1995, he was a post-doctoral research fellow at NTT Opto-electronics Labs., where he worked on femto-second all-optical switching devices. In 1995, he joined the department of Electrical and Electronic Engineering, Yonsei University, Korea, where he is presently a professor. His research interest is in the area of high-speed information processing technology that includes high-speed optoelectronics, high-speed electronic circuits and microwave photonics.