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Generation of few-cycle millijoule pulses at 5 μm employing a ZnGeP2-based OPCPA pumped with GW peak power pulses at 2 μm
Author(s): Uwe Griebner; Lorenz von Grafenstein; Martin Bock; Thomas Elsaesser
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Paper Abstract

A mid-infrared optical parametric chirped pulse amplification (OPCPA) system generating few-cycle pulses with multi-GW peak power at a 1 kHz repetition rate is presented. The system is pumped by a high-energy 2-μm picosecond source to exploit the high nonlinearity of ZnGeP2 (ZGP) crystals for parametric amplification. Employing a dispersion management scheme based on bulk materials and a spatial light modulator pulses as short as 75 fs are obtained in the idler at a center wavelength of 5 μm. The maximum generated pulse energy of 1.2 mJ translates into a peak power of 14 GW. Moreover, damage considerations of ZGP crystals at high 2 μm pump pulse intensities in the few-ten picosecond range are explored.

Paper Details

Date Published: 16 May 2018
PDF: 4 pages
Proc. SPIE 10713, Pacific-Rim Laser Damage 2018: Optical Materials for High-Power Lasers, 107130W (16 May 2018); doi: 10.1117/12.2319811
Show Author Affiliations
Uwe Griebner, Max-Born-Institut für Nichtlineare Optik und Kurzzeitspektroskopie (Germany)
Lorenz von Grafenstein, Max-Born-Institut für Nichtlineare Optik und Kurzzeitspektroskopie (Germany)
Martin Bock, Max-Born-Institut für Nichtlineare Optik und Kurzzeitspektroskopie (Germany)
Thomas Elsaesser, Max-Born-Institut für Nichtlineare Optik und Kurzzeitspektroskopie (Germany)


Published in SPIE Proceedings Vol. 10713:
Pacific-Rim Laser Damage 2018: Optical Materials for High-Power Lasers
Takahisa Jitsuno; Jianda Shao; Wolfgang Rudolph, Editor(s)

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