Journal ArticleDOI
Use of circularly polarized optical beams to suppress self-focusing instability in a nonlinear cubic medium with repeaters
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In this paper, a theoretical and experimental investigation is made of the suppression of small-scale self-focusing in high-power solid-state laser systems with repeaters by using circular polarization.Abstract:
A theoretical and experimental investigation is made of the suppression of small-scale self-focusing in high-power solid-state laser systems with repeaters by using circular polarization. The improvement in the output focused energy obtained experimentally for circular polarization as compared to that for linear polarization (~ 1.5 times higher) shows good agreement with the calculated value.read more
Citations
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Journal ArticleDOI
Compact 0.56 Petawatt laser system based on optical parametric chirped pulse amplification in KD*P crystals
Vladimir Lozhkarev,G. I. Freidman,Vladislav Ginzburg,E. V. Katin,Efim A. Khazanov,A.V. Kirsanov,G.A. Luchinin,A.N. Mal'shakov,M.A. Martyanov,O. V. Palashov,A. K. Poteomkin,A. M. Sergeev,Andrey Shaykin,Ivan V. Yakovlev +13 more
TL;DR: In this article, a Cr:forsterite master oscillator at 1250 nm, a stretcher, three optical parametrical amplifiers based on KD*P crystals providing 38 J energy in the chirped pulse at 910 nm central wavelength, and a vacuum compressor providing 43 fs pulse duration.
Book ChapterDOI
Beam Shaping and Suppression of Self-focusing in High-Peak-Power Nd:Glass Laser Systems
TL;DR: In this paper, the role of Fresnel diffraction at apertures at the laser facility as the source of dangerous spatial scales for small-scale self-focusing is illustrated.
Journal ArticleDOI
Theoretical and experimental study of laser radiation propagating in a medium with thermally induced birefringence and cubic nonlinearity.
TL;DR: It is shown theoretically and experimentally that the efficiency of the broadly employed method of linear depolarization compensation by means of a 90° polarization rotator decreases with increasing В-integral (nonlinear phase incursion induced by cubic nonlinearity).
Journal ArticleDOI
Small-scale instability of elliptically polarised waves in a medium with cubic nonlinearity
M. S. Kuz’mina,Efim A. Khazanov +1 more
TL;DR: In this article, the influence of polarisation on the spatial perturbation gain is analyzed and the maximally allowable (i.e., causing no destruction of a nonlinear medium) average intensity at a specified input noise is determined for arbitrary polarisation.
Journal ArticleDOI
Propagation of laser radiation in a medium with thermally induced birefringence and cubic nonlinearity.
TL;DR: A system of differential equations describing the propagation of laser radiation in a medium with birefringence and cubic nonlinearity is derived and it is shown that the efficiency of depolarization compensation by means of a 90 degrees polarization rotator or a Faraday mirror decreases with increasing B-integral (nonlinear phase incursion).
References
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Journal ArticleDOI
High-power phosphate-glass laser system: design and performance characteristics
W. Seka,J. M. Soures,Owen Lewis,J. Bunkenburg,David C. Brown,S. D. Jacobs,Gerard Mourou,J. Zimmermann +7 more
TL;DR: A one-beam prototype of a large twenty-four-beam phosphate-glass laser system has been built and tested and has demonstrated focusable power in excess of 750 GW/beam at 50-psec full width at half-maximum (FWHM) pulse duration and has delivered 165 J of focusable energy in a 500-p sec pulse duration.
Journal ArticleDOI
Formation of high-power sharpened pulses of required profile in a laser amplifying system
V I Kryzhanovskiĭ,Artur A Mak,I. N. Sventitskaya,V A Serebryakov,Yu A Flegontov,A A Chertkov +5 more
TL;DR: In this article, an analysis of the design of high-power laser systems comprising a master oscillator and a series of amplifiers forming a pulse of the required shape and duration is made.