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Spectral shaping of an OPCPA preamplifier for a sub-20-fs multi-PW laser

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Title
Spectral shaping of an OPCPA preamplifier for a sub-20-fs multi-PW laser
Author(s)
Hwang Woon Lee; Yeong Gyu Kim; Je Yoon Yoo; Jin Woo Yoon; Jung Moon Yang; Hanbum Lim; Chang Hee Nam; Jae Hee Sung; Seong Ku Lee
Publication Date
2018-09
Journal
OPTICS EXPRESS, v.26, no.19, pp.24775 - 24783
Publisher
OPTICAL SOC AMER
Abstract
We developed an OPCPA preamplifier with an actively shaped output spectrum to obtain a sub-20-fs-duration pulse for a 4-PW laser. The active spectral shaping was facilitated by controlling the temporal profile of a pump pulse in the OPCPA preamplifier. By optimizing the output spectrum of the OPCPA to compensate for the gain-depletion effect in the 4-PW laser, a final laser pulse with a broad spectrum of 101-nm in width (FWHM), resulting in a short pulse duration of 17 fs, was achieved. (C) 2018 Optical Society of America under the terms of the OSA Open Access Publishing Agreemen
URI
https://pr.ibs.re.kr/handle/8788114/5168
ISSN
1094-4087
Appears in Collections:
Center for Relativistic Laser Science(초강력 레이저과학 연구단) > Journal Papers (저널논문)
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