Use of KD*P crystals for non-degenerated broadband optical parametric chirped pulse amplification in petawatt lasers

Freǐdman, G. I.; Andreev, N. F.; Bespalov, V I; Bredikhin, V. I.; Гинзбург, В. Н.; Katin, E. V.; Korytin, A. I.; Хазанов, Е. А.; Lozhkarev, V. V.; Palashov, O.; Sergeev, A.; Yakovlev, I. V.; Гаранин, С. Г.; Rukavishnikov, N. N.; Sukharev, S. A.

doi:10.1109/cleo.2002.1034473

Cited by 5 publications

(1 citation statement)

References 8 publications

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“…In this scheme the conditions of wide-band synchronism of parametric amplification are realized due to proper selection of a non-linear crystal, propagation directions and frequencies of pump and signal waves and, at the same time, the scheme of consecutive stretching of a chirp-modulated pulse traditional for super-high field generation, its many-stage amplification and compression of an amplified pulse are implemented. It is the fact of great importance that recently in Russia [9][10][11][12] (VNIIEF, lAP RAS) and in Great Britain [13] (Rutherford Appleton Laboratory) a possibility of parametric amplification up to the level of tens of Joules was demonstrated at the spectrum width of -25-70 nm, compressed pulse duration of-70 fs and laser power after compression of 130 TW.…”

Section: Cuvetto Spatial Filtermentioning

confidence: 99%

<title>Russian megajoule laser facility Iskra-6: creation, investigation and parameter optimization of basic module Luch</title>

Гаранин

2006

SPIE Proceedings

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At present there are twomain problems in the ICF program. The first one is to define laser facility parameters and target design which can provide thermonuclear ignition. The second problem is to create such a facility with compact architecture and reasonable cost.The facilities existing at the national laboratories over the world cannot answer the first question. The reason is a too low level of laser energy. These facilities provide investigators with experimental data that serve for verification of the basic theoretical models for numerical simulations of thermonuclear targets. Figure 1 presents results of the study of the direct drive target compression using one-dimensional code SNDP [1,2]. These calculations show that a polymeric target could be ignited by the tailored laser pulse of the energy of 500 kJ at the wavelength ofO.35 m.Gain factor in calculations is G = 10 at the initial target radius of 1 .5 mm, polymeric shell thickness of 33 tm and DTice thickness of 23 .tm. The essential fact is that volumetric compression necessary to achieve ignition is about 1 O'. ____________________________________________________________________________ 2.OxlO

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Section: Cuvetto Spatial Filtermentioning

confidence: 99%

<title>Russian megajoule laser facility Iskra-6: creation, investigation and parameter optimization of basic module Luch</title>

Гаранин

2006

SPIE Proceedings

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Multicascade boradband optical parametric chirped pulse amplifier based on KD*P crystals

Freǐdman¹,

Andreev²,

Bespalov³

et al. 2003

SPIE Proceedings

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We have experimentally demonstrated the existence of super-broadband non-degenerated phase matching for a signal with a wavelength of 911 nm in KD*P crystal pumped with wavelength of 527nm. Parametric amplification coefficient of more than 10 7 in three cascades is achieved. This resulted in pulse energy 10mJ at the output of third cascade. It is shown that in the KD*P crystal chirped pulses of conventional femtosecond sources (a Ti:Sa laser at 911 nm and a Cr:forsterite laser at 1250 nm) can be amplified up to the level that ensures multipetawatt power after compression.

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High-power lasers at the Russian Federal Nuclear Center (VNIIEF)

Гаранин

2008

Laser Phys.

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Use of KD*P crystals for non-degenerated broadband optical parametric chirped pulse amplification in petawatt lasers

Cited by 5 publications

References 8 publications

<title>Russian megajoule laser facility Iskra-6: creation, investigation and parameter optimization of basic module Luch</title>

<title>Russian megajoule laser facility Iskra-6: creation, investigation and parameter optimization of basic module Luch</title>

Multicascade boradband optical parametric chirped pulse amplifier based on KD*P crystals

High-power lasers at the Russian Federal Nuclear Center (VNIIEF)

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