✦ LIBER ✦
High-energy, spatially flat-top green pump laser by beam homogenization for petawatt scale Ti:sapphire laser systems
✍ Scribed by Momoko Tanaka; Hiromitsu Kiriyama; Yoshihiro Ochi; Yoshiki Nakai; Hajime Sasao; Hajime Okada; Hiroyuki Daido; Paul Bolton; Shunichi Kawanishi
- Publisher
- Elsevier Science
- Year
- 2009
- Tongue
- English
- Weight
- 291 KB
- Volume
- 282
- Category
- Article
- ISSN
- 0030-4018
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✦ Synopsis
We have demonstrated that we can homogenize the spatial profile of a high-energy green laser pulse used for pumping a petawatt scale Ti:sapphire amplifier. The second harmonic of a high-energy, large aperture Nd:glass laser system generates laser emission at a green wavelength with 75 J single pulse energy. Using a diffractive optical element for beam homogenization, we have obtained a highly spatially uniform flat-top second harmonic profile.