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 - Journal Article
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
R&D Projects: GA MŠMT EF15_006/0000674; GA MŠMT EF15_003/0000445
EU Projects: European Commission(XE) 739573 - HiLASE CoE
Grant - others: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
Institutional support: RVO:68378271
Keywords : fluctuation–magnification * chirped volume Bragg grating * thin-disk laser * B-integral * nonlinear Kerr effects
OECD category: Optics (including laser optics and quantum optics)
Impact factor: 1.3, year: 2022
Method of publishing: Limited access
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.

Permanent Link: https://hdl.handle.net/11104/0335979