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Dr. John D. Lekki of NASA Glenn Research Center presents.

Dr. Lekki is a senior researcher at NASA Glenn Research Center (GRC) in Cleveland Ohio. In his 31-year career at NASA he has had the honor to lead very talented teams in the research and development of optical instrumentation and communications systems in multiple areas - including quantum information systems, hyperspectral remote sensing, integrated vehicle health management, and multiple flight instruments. Dr. Lekki serves as the Principal Investigator for the NASA GRC Quantum Communications research team. This team is focused on the development of capabilities to support space-based quantum communication networks that include a quantum metrology laboratory, a system testbed, a model for quantum communication system assessments as well as technology for the transmission of quantum optical signals to aircraft and satellites. Dr. Lekki has had the privilege to contribute to NASA and interagency strategic planning for quantum communications.

In the support of Earth Science, he initiated a joint NASA NOAA research project to develop and utilize an airborne hyperspectral imager to remotely identify harmful algal blooms in the Great Lakes. This research team successfully developed and deployed three generations of high-quality miniature hyperspectral imaging systems. These have been successfully flown on manned aircraft over 90 flights during field work from 2006 to 2017. He currently is the Principal Investigator for a project developing a hyperspectral remote sensing cubesat focused on water quality monitoring.

In support of Integrated Vehicle Health Management Dr. Lekki served as the principal investigator for the Vehicle Integrated Propulsion Research (VIPR) project. The VIPR test project is unique in that sensors and other health management technologies were tested in a turbo fan engine where the engine is operated in a range of off-nominal operations. Sensors capable of operating in extremely harsh environments and detect signs of engine malfunction were tested in this program. This series of propulsion health management experiments culminated with the first ever controlled test of the effects from the ingestion of low concentration volcanic ash in a turbo fan engine. The information learned contributes to the evaluation of flight safety during volcanic eruptions.