Navy Free Electron Laser (IMAGE) Office of Naval Research Caption The Office of Naval Research funded Free-Electron Laser located at the Thomas Jefferson National Accelerator Facility is the world's most powerful tunable laser. Credit US Navy photo by John F. Williams Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.