Professor Lumetta and his students are investigating the issues of security and reliability in optical networks. Recently his group has worked on network access protocols for optical networks. As part of the work, they developed discrete event simulators to evaluate, fix, and extend network access protocols.
They have also developed novel optical protection schemes that improve on previous approaches in several ways. They established the usefulness of local failure information in optical path protection by developing a combined scheme that leverages the sharing benefits of path protection with the localization benefits of link protection. They also invented a technique that offers a combination of the sharing advantages of 1:N path protection with the restoration speed advantages of 1:1 path protection (due to preconfiguration of optical switches).