A.V. Kirsanov

200 TW 45 fs laser based on optical parametric chirped pulse amplification

200 TW peak power has been achieved experimentally using a Cr:forsterite master oscillator at 1250 nm, a stretcher, three optical parametrical amplifiers based on KD*P (DKDP) crystals providing 14.5 J energy in the chirped pulse at 910 nm central wavelength, and a vacuum compressor. The final parametrical amplifier and the compressor are described in detail. Scaling of such architecture to multipetawatt power is discussed.

100-TW Femtosecond Laser Based on Parametric Amplification

In experiments on the parametrical amplification of femtosecond pulses in wide-aperture DKDP crystals, a power of more than 100 TW has been reached, which is much higher than the record level achieved in such lasers. The energy efficiency obtained for the parametric amplifier is equal to 27%. The energy of a 72-fs pulse is equal to 10 J.

1 petawatt OPCPA laser in Russia: Status and expectations

In spite of the fact that the petawatt level has been attained quite a time ago [ 1 ], only a few petawatt facilities are available worldwide. One of them, a 056 PW OPCPA facility, was created at the Institute of Applied Physics in 2006 [ 2 ]. The main OPCPA merit is a possibility of power scaling. In the current work we report construction of still another Russian OPCPA-based laser complex.

Application of Petawatt pARametric Laser (PEARL)—Laser Wakefied Acceleration

In this paper we discuss laser weak field acceleration experiments made at the PEtawatt pARametric Laser (PEARL). Using free 2 mm gas jet without preplasma we generated electron beam with energy up to 200 MeV, angular divergence 0.2 degree, and charge 10 pC. The special attention is paid for diagnostics which is adapted for low repetition rate systems with low output parameters stability.

Initial experiments on electron acceleration driven by OPCPA laser

Experiments on electron and ion acceleration using powerful laser radiation have been successfully carried out lately. A possibility to get high electron energies amounting hundreds of MeV and even GeV, the electron energy spread being small and the angular spectrum being narrow, makes laser-driven accelerators interesting and promising for many applications in atomic physics, medicine, etc.

Tabletop 300J 1ns Nd:glass laser with 3 diffraction-limited beam divergence

This paper describe tabletop 300J Nd:glass laser is used to pump a broadband chirped pulse optical parametric amplifier and constitutes part of a 0,5 PW femtosecond setup. Beam divergence was measured in the focal plane of a non-aberration objective with a focal distance of 3m. The measurements showed that 90% of beam energy was concentrated in an angle 35 murad. The second harmonic generator is made of a 22-mm-long KD*P crystal (oee type). The second harmonic energy was up to 190J.

Tabletop 300J 1ns Nd:Glass Laser for Pumping of a Chirped Pulse Optical Parametric Amplifier

300J-energy 1ns duration pulse has been achieved at the laser output with fill factor of 0.8. The laser have been accommodated on a single optical table. The energy efficiency of second harmonic generation is 55%.

Tabletop 200 TW 45 fs laser based on optical parametric chirped pulse amplification

200TW peak power at 45 fs pulse duration (910 nm central wavelength) has been achieved experimentally using three optical parametrical amplifiers based on KD*P crystals. Energy conversion efficiency of the final amplifier stage was 25%.

Toward Petawatt Laser Based on Optical Parametrical Amplification: Status Quo and Perspectives

Laser power of more than 100TW (70fs, 10J) has been achieved in experiments on optical parametric amplification of femtosecond pulses in KD*P crystals. Energy conversion efficiency of optical parametric amplifier is 27%.

A compact 100 J/100 GW pump laser for broadband chirped pulse optical parametric amplifier

The described laser system comprises a Nd:YLF pulse-repetitive laser, a tabletop 100 J pulsed Nd:glass laser and a beam shaper. The system is synchronized with a femtosecond laser and used as pump of optical parametric amplifier.