NIF & Photon Science physicists are exploring the fundamental limits of traditional round fiber structure and developing alternate solutions to allow scaling to higher powers and pulse energies. Comprehensive models of ribbon fiber structures, or waveguides, are also being developed. The goal is to develop ribbon fiber lasers that can amplify light beams to powers well beyond fundamental limits.
Joint research efforts with the Lasers and Optics Research Center at the U.S. Air Force Academy resulted in tailored simulation codes that can model photonic crystal fiber structure performance using LLNL high-performance computing capabilities.
The team has also installed and commissioned an 8-meter-tall state of the art draw tower to fabricate a variety of optical fiber structures to support this research.
“A New Shape for Optical Fiber Lasers,” Science & Technology Review, June 2011