Lee Center for Advanced Networking
Kerry Vahala studies the physics of new photonic devices for communications networks. Long-distance communications is dominated by photonics, because of the low loss of fiber optic lines. On the other hand, routing and switching are dominated by electronic transistor circuits. In the future, Vahala believes that photonics will take over more and more of the routing and switching functions, because it is messy to convert back and forth between photonic devices and electronic devices. Vahala’s group is developing extremely efficient silica micro-resonators for filters, wavelength selectors, and tunable lasers.