Experimental study on the fluctuation–magnification effect of chirped volume Bragg grating compressor in high-energy, ultrafast, thin-disk chirped pulse amplification system

0564272 - FZÚ 2023 RIV US eng J - Článek v odborném periodiku
Zhou, Huang - Novák, O. - Smrž, Martin - Chen, Liyuan - Roškot, Lukáš - Csanaková, B. - Chyla, Michal - Čech, M. - Mocek, Tomáš
Experimental study on the fluctuation–magnification effect of chirped volume Bragg grating compressor in high-energy, ultrafast, thin-disk chirped pulse amplification system.
Optical Engineering. Roč. 61, č. 10 (2022), č. článku 106103. ISSN 0091-3286. E-ISSN 1560-2303
Grant CEP: GA MŠMT EF15_006/0000674; GA MŠMT EF15_003/0000445
GRANT EU: European Commission(XE) 739573 - HiLASE CoE
Grant ostatní: OP VVV - HiLASE-CoE(XE) CZ.02.1.01/0.0/0.0/15_006/0000674; OP VVV - BIATRI(XE) CZ.02.1.01/0.0/0.0/15_003/0000445
Institucionální podpora: RVO:68378271
Klíčová slova: fluctuation–magnification * chirped volume Bragg grating * thin-disk laser * B-integral * nonlinear Kerr effects
Obor OECD: Optics (including laser optics and quantum optics)
Impakt faktor: 1.3, rok: 2022
Způsob publikování: Omezený přístup
https://doi.org/10.1117/1.OE.61.10.106103

The fluctuation–magnification effect on the peak intensity of a laser pulse caused by the nonlinear Kerr effect in the chirped volume Bragg grating (CVBG) compressor is investigated experimentally for a high-energy, thin-disk, chirped pulse amplification system. The nonlinear Kerr effect occurs at the blue end, and the accumulated nonlinear phase shift (B-integral) in the CVBG rises with the increase of laser pulse energy. Experiments show that small fluctuations in peak power of uncompressed pulses cause increasing of the temporal fluctuation and spatial fluctuation due to high Kerr-nonlinearity in the CVBG when B-integral is larger than π. Thus the initial fluctuation would be magnified by the CVBG compressor.

Trvalý link: https://hdl.handle.net/11104/0335979