<10 fs High Energy Fiber Laser

Statement of the problem or situation that is being addressed: High energy and high power infrared laser is a critical component for next generation attosecond sciences. However, current technologies are limited to energy, efficiency, size and price. Breakthrough technologies are needed. Statement of how this problem or situation is being addressed. By using zerodispersion fiber amplifier technique to coherently broaden the spectrum, PolarOnyx is to develop a 10 fs 10 mJ Infrared fiber laser system without combining multiple lasers (Sirius laser system). Commercial Applications and Other Benefits. In addition to the attosecond science applications, material processing is a major commercial application for this project. This includes (1) Photonic device fabrications, such as waveguide, coupler, WDM, modulator, and switching; (2) all types of metal processing such as welding, cutting, annealing, and drilling; (3) semiconductor and microelectronics manufacturing such as lithography, inspection, control, defect analysis and repair, and via drilling; (4) marking of all materials including plastic, metals, and silicon; (5) other materials processing such as rapid prototyping, desk top manufacturing, micromachining, photofinishing, embossed holograms, and grating manufacturing. Key Words. Ultrafast fiber laser; spectral broadening; Attosecond; X-ray; material processing; zero dispersion; high power/energy fiber laser. Summary for Members of Congress. A high energy 10fs fiber laser system will be developed for next generation attosecond science. This will enable a compact and robust probe laser and coherent X-ray source for future time resolve attosecond spectroscopy and high field physics researches.