Abstract
We report on a single shot optical parametric chirped pulse amplifier designed to seed the Petawatt Aquitaine Laser on the Laser Integration Line facility multipetawatt high-energy laser. The scheme is based on a stretched signal pulse at amplified with 20% conversion efficiency by a monomode pump pulse at . The homemade pump laser is able to deliver a single shot beam with a square flat top spatial profile and programmable temporal shape. A high-stability , , and stretched pulse is then obtained with an excellent quality spatially shaped beam.
© 2007 Optical Society of America
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