10-TW high-contrast double CPA laser system for ion acceleration

8th International Conference on Inertial Fusion Sciences and Applications

Yogo, A.^1 ; Sakaki, H.^1 ; Fukuda, Y.^1 ; Jinno, S.^1 ; Kanasaki, M.^1,2 ; Kiriyama, H.^1 ; Shimomura, T.^1 ; Ogura, K.^1 ; Mori, M.^1 ; Bolton, P.R.^1 ; Kondo, K.^1

Kansai Photon Science Institute, Japan Atomic Energy Agency, 8-1-7 Umemidai, Kizugawa, Kyoto

619-0215, Japan^1

Graduate School of Maritime Sciences, Kobe University, Kobe

658-0022, Japan^2

关键词: Advanced systems;    Amplified spontaneous emissions;    ASE-temporal contrast;    Conventional lasers;    Ion accelerations;    Repetition rate;    Three orders of magnitude;    Ti:sapphire laser systems;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/688/1/012128/pdf
DOI  :  10.1088/1742-6596/688/1/012128

来源: IOP

【 摘 要 】

We demonstrate an insertable pulse cleaning module (IPCM) that is connected to a commercial CPA Ti:sapphire laser system and reduces the background of amplified spontaneous emission (ASE), when the output energy and repetition rate of the original laser system is completely preserved. The ASE temporal contrast is suppressed by three orders of magnitude on the benefit of double saturable absorbers involved in the module. Our method can reform old conventional lasers into high-contrast advanced systems.