Lithuanian Journal of Physics article / Lietuvos fizikos žurnalo straipsnis

HIGH AVERAGE POWER EFFECTIVE PUMP SOURCE AT 1 kHz REPETITION RATE FOR OPCPA SYSTEM
K. Michailovas^a,b, V. Smilgevičius^b, and A. Michailovas^a,c
^aEKSPLA, Savanoriu Ave. 231, LT-02300 Vilnius, Lithuania
^bLaser Research Centre, Vilnius University, Saulėtekio 10, LT-10223 Vilnius, Lithuania
^cCenter for Physical Sciences and Technology, Savanorių 231, LT-02300 Vilnius, Lithuania
E-mail: k.michailovas@ekspla.com

Received 17 April 2014; accepted 29 May 2014

A laser amplifier set-up that can be used as an effective pump source for an optical parametric chirped pulse amplification system is presented in this paper. 1-mJ 48-ps seed pulses were amplified to the energy of 80 mJ. The system operated at 1 kHz repetition rate resulting in an average output power of about 80 W. The results of enhancement of beam focusability by use of deformable mirror are presented.

Keywords: picosecond pulses amplifier, Nd:YAG, diode pumped, OPCPA
PACS: 42.55.Xi

EFEKTYVUS DIDELĖS VIDUTINĖS GALIOS 1 kHz PASIKARTOJIMO DAŽNIO KAUPINIMO ŠALTINIS OPCPA SISTEMAI

K. Michailovas^a,b, V. Smilgevičius^b, A. Michailovas^a,c
^aEKSPLA, Vilnius, Lietuva
^bVilniaus universiteto Lazerinių tyrimų centras, Vilnius, Lietuva
^cFizinių ir technologijos mokslų centras, Vilnius, Lietuva

Pristatoma lazerinė stiprinimo sistema, kuri gali būti efektyviu kaupinimo šaltiniu optiniam parametriniam faziškai moduliuotų („čirpuotų“) šviesos impulsų stiprintuvui. Sistemos vidutinė išėjimo galia buvo apie 80 W, jai veikiant 1 kHz pasikartojimo dažniu ir stiprinant 1 mJ 48 ps trukmės impulsus. Pateikiami pluošto fokusuojamumo pagerinimo deformuojamo veidrodžio pagalba rezultatai.

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