Sub-10 fs pulse generation by post-compression for peak-power enhancement of a 100-TW Ti:Sapphire laser

We demonstrated sub-10 fs pulse generation by the post-compression of a 100 TW Ti:Sapphire laser to enhance the peak-power. In the post-compression, the laser spectrum was widely broadened by self-phase modulation in thin fused silica plate(s), and the induced spectral phase was compensated with a s...

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Bibliographic Details
Published in:Optics express 2022-03, Vol.30 (6), p.8734-8741
Main Authors: Kim, Ji In, Kim, Yeong Gyu, Yang, Jeong Moon, Yoon, Jin Woo, Sung, Jae Hee, Lee, Seong Ku, Nam, Chang Hee
Format: Article
Language:English
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Summary:We demonstrated sub-10 fs pulse generation by the post-compression of a 100 TW Ti:Sapphire laser to enhance the peak-power. In the post-compression, the laser spectrum was widely broadened by self-phase modulation in thin fused silica plate(s), and the induced spectral phase was compensated with a set of chirped mirrors. A spatial filter stage, consisting of two cylindrical lenses and a spherical lens, was employed to reduce the intensity modulation existing in the laser beam, which effectively suppressed intensity spikes induced by self-focusing. The laser beam was post-compressed from 23 fs to 9.7 fs after propagating through a 1.5 mm fused silica plate, resulting in the peak-power enhancement by a factor of 2.1.
ISSN:1094-4087
1094-4087
DOI:10.1364/OE.452224