Slides available here!

Speaker:

Tohru Ishihara, Kyoto University, Japan

Title:

An Integrated Optical Parallel Adder: A First Step towards Light-Speed Data Path Operation

Abstract:

Integrated optical circuits with nanophotonic devices have attracted significant attention due to its low power dissipation and light-speed operation. With light interference and resonance phenomena, the nanophotonic device works as a voltage-controlled optical pass-gate like a transistor device. This talk first introduces a concept of the optical pass-gate logic. The talk next shows an implementation of a parallel adder circuit based on the optical pass-gate logic. Experimental results obtained with optoelectronic circuit simulator show advantages of the optical parallel adder circuit over a traditional CMOS AOI-based parallel adder circuit.

Bio:

Tohru Ishihara received his Dr.Eng. degree in computer science from Kyushu University in 2000. For the next three years, he was a Research Associate in the VLSI Design and Education Center, the University of Tokyo. From 2003 to 2005, he was with Fujitsu Laboratories of America as a Research Staff of an Advanced CAD Technology Group. From 2005 to 2011, he was with Kyushu University as an Associate Professor. In April 2011 he joined Kyoto University, where he is currently with the Dept. of Communications and Computer Engineering. His research interests include low-power design methodologies and power management techniques for embedded systems. Dr. Ishihara is a member of the IEEE, ACM, IPSJ and IEICE. He has served on program committee of numerous conferences such as CODES+ISSS, ISLPED and so on.



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