Comparison research for the temporal contrast of the J-KAREN-P laser
We have experimentally investigated the temporal contrast enhancement techniques after the first chirped-pulse amplification (CPA) system for seeding for high peak powers of petawatt and beyond. Firstly, the cascaded femtosecond optical parametric amplifier based on the utilization of the idler pulse rather than the signal pulse has been investigated. Secondly, the technology for pulse cleaning based on noncollinear sum-frequency generation with the signal and idler of an optical parametric amplifier has been investigated. Furthermore, a single plasma mirror is installed in the J-KAREN-P laser beam line for further contrast improvement of three orders of magnitude. The above developments indicate, that although it has not been directly measured, the contrast can be as high as approximately 10^15 up to 40 ps before the main pulse. We also briefly show an overview of the digital transformation (DX) of the system, enabling remote and automated operation of the J-KAREN-P laser facility.
Authors
- U. Schramm (ORCID: https://orcid.org/0000-0003-0390-7671)
- Karl Zeil (ORCID: https://orcid.org/0000-0003-3926-409X)
- Nobuhiko Nakanii (ORCID: https://orcid.org/0000-0003-3936-6192)
- Tim Ziegler (ORCID: https://orcid.org/0000-0002-3727-7017)
- Il Woo Choi (ORCID: https://orcid.org/0000-0002-5985-3302)
- M. Kando (ORCID: https://orcid.org/0000-0002-9821-6779)
- N. P. Dover (ORCID: https://orcid.org/0000-0003-0420-3940)
- Mamiko Nishiuchi (ORCID: https://orcid.org/0000-0001-8143-0827)
- Yuji Fukuda (ORCID: https://orcid.org/0000-0002-1348-0483)
- Akira Kon (ORCID: https://orcid.org/0000-0003-4728-2079)
- A. S. Pirozhkov (ORCID: https://orcid.org/0000-0001-6183-1383)
- A. Sagisaka
- Stefan Bock (ORCID: https://orcid.org/0000-0002-1919-8585)
- Yuji Mashiba
- Thomas Püschel (ORCID: https://orcid.org/0000-0002-4738-6436)
- Chang Hee Nam (ORCID: https://orcid.org/0000-0001-8203-0702)
- Koichi Ogura (ORCID: https://orcid.org/0000-0001-6956-3117)
- Hiromitsu Kiriyama (ORCID: https://orcid.org/0000-0001-8298-4442)
- Chang Liu (ORCID: https://orcid.org/0000-0002-8918-7224)
- Hans-Peter Schlenvoigt (ORCID: https://orcid.org/0000-0003-4400-1315)
- H. Sasao
- Kotaro Kondo
- Yasuhiro Miyasaka
Institutions
- Helmholtz-Zentrum Dresden-Rossendorf (DE)
- Gwangju Institute of Science and Technology (KR)
- National Institutes for Quantum Science and Technology (JP)
Publication Details
- Published
- 2025-06-03
- DOI
- https://doi.org/10.1117/12.3056269
- Primary Topic
- Optical Systems and Laser Technology
- Type
- article
- Field-Weighted Citation Impact
- 0.00