Journal of Siberian Federal University. Mathematics & Physics / Simulation of Broadening the Second Harmonic Spectrum in KDP by Chirp Pulse Pumping

Full text (.pdf)
Issue
Journal of Siberian Federal University. Mathematics & Physics. 2021 14 (2)
Authors
Alekseev, Sergey V.; Losev, Valery F.; Grudtsyn, Yakov V.; Koribut, Andrey V.; Trofimov, Vyacheslav A.
Contact information
Alekseev, Sergey V.: Institute of High Current Electronics SB RAS Tomsk, Russian Federation; ; Losev, Valery F.: Institute of High Current Electronics SB RAS Tomsk, Russian Federation; ; Grudtsyn, Yakov V.: P. N. Lebedev Physical Institute of RAS Moscow, Russian Federation; ; Koribut, Andrey V.: P. N. Lebedev Physical Institute of RAS Moscow, Russian Federation; ; Trofimov, Vyacheslav A.: South China University of Technology Guangzhou, China;
Keywords
femtosecond laser pulse; second harmonic; spectrum; efficiency; pulse duration
Abstract

The conditions of broadening the second harmonic spectrum in KDP upon pumping by a negatively chirped pulse of fundamental frequency with central wavelength of 950 nm are analyzed numerically. It is shown that broadening of the spectrum (K = 1.4) is mainly limited by difference in group velocities of radiation pulse between first and second harmonics. The article is based on materials of the report at the first All-Russian scientific conference with international participation "YENISEI PHOTONICS – 2020"

Pages
144–149
DOI
10.17516/1997-1397-2021-14-2-146-151
Paper at repository of SibFU
https://elib.sfu-kras.ru/handle/2311/137964