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Hundred mJ, sub-picoseconds, high temporal contrast OPCPA/Yb:YAG ceramic thin disk hybrid laser system |
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| Authors: | M Suzuki H Kiriyama I Daito Y Ochi H Okada M Sato Y Tamaoki T Yoshii J Maeda S Matsuoka H Kan P R Bolton A Sugiyama K Kondo S Kawanishi |
| Institution: | 1. Photo-Medical Research Center, Japan Atomic Energy Agency, 8-1-7 Umemidai, Kizugawa, Kyoto, 619-0215, Japan 2. Quantum Beam Science Directorate, Japan Atomic Energy Agency, 8-1-7 Umemidai, Kizugawa, Kyoto, 619-0215, Japan 3. Development Bureau, Hamamatsu Photonics K.K., 5000 Kita, Hirakuchi, Hamamatsu, Shizuoka, 434-8601, Japan |
| Abstract: | The authors have demonstrated an optical parametric chirped-pulse amplification (OPCPA)/Yb:YAG ceramic thin disk hybrid laser system having hundred mJ level pulse energy sub-picosecond pulse duration with high temporal contrast. At an input chirped-pulse energy of 3.8?mJ from an OPCPA preamplifier an output energy of 130?mJ has been generated from multipass diode-pumped Yb:YAG ceramic thin disk amplifier. A recompressed pulse duration of 450?fs with a contrast level of less than 7.2×10?9 at ?150?ps before the main pulse has been obtained. The contrast level is the highest value achieved in Yb:YAG chirped-pulse amplification (CPA) laser system at 100?mJ level. |
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