When: June 27, 16:00
Where: Skoltech, E-B4-3007 (New Campus)
CPQM seminar:
Optical computing by injection-locked lasers
Tuomo von Lerber
Doctor of Science (D.Sc.) in Optical Technologies, Aalto University
Abstract:
An all-optical computer has remained an elusive concept. To construct a practical computing primitive equivalent to an electronic Boolean logic, one should utilize nonlinearity that overcomes weaknesses that plague many optical processing schemes. An advantageous nonlinearity provides a complete set of logic operations and allows cascaded operations without changes in wavelength or in signal encoding format. We have studied an all-optical computing scheme based on injection-locked lasers and will discuss its benefits against Millers “Criteria for practical optical logic” (Nature Photonics 4, pp. 3-5, 2010). We demonstrate the majority-gate operation, simulate various adder circuits, and discuss the mathematical basis for arbitrary digital and analog operations.
BIO:
Tuomo von Lerber is a consultant and an inventor, engaged in the fields of optical telecommunications and computing with a long-lasting passion to develop concepts for all-optical signal processing. For several years he has been pursuing this goal together with distinguished scientists from leading universities, such as Skoltech, University of Helsinki, and Darmstadt Technical University. The first papers will be published soon in peer-reviewed journals. In his free time, he greatly enjoys sports and hiking. He is married and a father of four soon-adult children.