The circuit board that transmits signals
by light between LSIs
The newly developed circuit board is about 5 mm square. It processes information by electrons in a conventional manner inside an LSI. The processed signals are conveyed by laser, and they returns to the next LSI after they are converted into electrons. As the processing speed by light is approaching the limit, the research team used light in place of electron to increase the processing speed of a computer. This research was funded by the Funding Program for World-Leading Innovative R and D on Science and Technology (FIRST) by Japan Society for the Promotion of Science.
Professor Yasuhiko Arakawa