V. V. Petrov, E. V. Pestryakov, A. V. Laptev, V. A. Petrov, G. V. Kuptsov, V. I. Trunov, S. A. Frolov, “Multiterawatt femtosecond laser system with kilohertz pulse repetition rate”, Kvantovaya Elektronika, 2014, Volume 44, Number 5,Pages <nobr>452

This article is cited in 10 papers

Lasers

Multiterawatt femtosecond laser system with kilohertz pulse repetition rate

V. V. Petrov^ab, E. V. Pestryakov^ac, A. V. Laptev^a, V. A. Petrov^ab, G. V. Kuptsov^ab, V. I. Trunov^a, S. A. Frolov^a

^a Institute of Laser Physics, Siberian Branch, Russian Academy of Sciences, Novosibirsk
^b Novosibirsk State Technical University
^c Novosibirsk National Research State University

Abstract: The basic principles, layout and components are presented for a multiterawatt femtosecond laser system with a kilohertz pulse repetition rate f, based on their parametric amplification and laser amplification of picosecond radiation that pumps the stages of the parametric amplifier. The results of calculations for a step-by-step increase in the output power from the LBO crystal parametric amplifier channel up to the multiterawatt level are presented. By using the developed components in the pump channel of the laser system, the parameters of the regenerative amplifier with the output energy ~1 mJ at the wavelength 1030 nm and with f = 1 kHz are experimentally studied. The optical scheme of the diode-pumped multipass cryogenic Yb:Y₂O₃ laser ceramic amplifier is developed and its characteristics are determined that provide the output energy within the range 0.25 – 0.35 J.

Keywords: laser media, laser diode pumping, femtosecond pulses, high-intensity laser systems, cryogenic temperatures.

PACS: 42.60.By, 42.70.Hj, 42.65.Re, 42.65.Yj

Received: 03.03.2014
Revised: 11.03.2014