Dual-channel multiterawatt laser system with coherent beam combining

Author

Bagayev, S.N. ; Trunov, V.I. ; Pestryakov, E.V. ; Frolov, S.A. ; Leshchenko, V.E. ; Vasiliev, V.A.

Author_Institution

Inst. of Laser Phys., Novosibirsk, Russia

fYear

2014

fDate

June 30 2014-July 4 2014

Firstpage

1

Lastpage

1

Abstract

The dual-channel femtosecond laser system with each channel consisting of three BBO and LBO crystals based broadband parametric amplification stages of Ti:Sa laser radiation and relative jitter stabilization system to 110 as level is presented. For the first time coherent combining of two sequences of parametrically amplified femtosecond pulses with energy of ~ 150 mJ, 10 Hz repetition rate is experimentally realized. Coherent combining efficiency of over 90% is reached. Experimental results of parametrically amplified contrast measurement are presented with further comparison with simulation results based on the model of parametric luminescence evolution developed by us. In order to achieve petawatt power level schemes of multibeam pumping of the booster cascade of developed laser system are considered.

Keywords

barium compounds; boron compounds; high-speed optical techniques; laser beams; laser stability; laser variables measurement; light coherence; lithium compounds; optical parametric amplifiers; optical pumping; photoluminescence; solid lasers; BBO; BBO crystal based broadband parametric amplification stages; LBO crystal based broadband parametric amplification stages; LiB₃O₅; coherent beam combining; dual-channel femtosecond laser system; dual-channel multiterawatt laser system; multibeam pumping; parametric luminescence evolution model; petawatt power level schemes; relative jitter stabilization system; Analytical models; Chirp; Energy measurement; Gratings; coherent beam combining; contrast; femtosecond pulses; multibeam pump; parametric amplification; petawatt;

fLanguage

English

Publisher

ieee

Conference_Titel

Laser Optics, 2014 International Conference

Conference_Location

Saint Petersburg

Print_ISBN

978-1-4799-3884-1

Type

conf

DOI

10.1109/LO.2014.6886342

Filename

6886342