MODEL OF LUMINESCENCE EVOLUTION IN HIGH-POWER LASER SYSTEMS BASED ON PARAMETRIC AMPLIFICATION CASCADES

Stanislav A. Frolov
1. Institute of Laser Physics of the Siberian Branch of the RAS Novosibirsk, Russian Federation
stanislav.a.frolov@gmail.com
Vyacheslav E. Leschenko
1. Institute of Laser Physics of the Siberian Branch of the RAS Novosibirsk, Russian Federation
leschenkoslava@gmail.com
Vladimir I. Trunov
1. Institute of Laser Physics of the Siberian Branch of the RAS Novosibirsk, Russian Federation
trunov@laser.nsc.ru
The material was received by the Editorial Board: 27.03.2014
The paper presents the model of parametric luminescence evolution that takes diffraction, birefringence and group velocity dispersion into account. The distinctive feature of the model is capability to compute full frequency-angular spectra of amplified luminescence generated during parametric amplification of chirped pulses. That allows not only to compute pulse contrast but also to estimate influence of superluminescence on energy of amplified pulses. The results of experiments to measure parameters of parametric luminescence generated during parametric amplification of chirped femtosecond pulses in BBO crystals are presented. The comparison of experimental and simulation results shows good agreement between theory and experiment.

Keywords:
parametric amplification, pulse contrast, luminescence, parametric superluminescence. 
УДК 535:621.373.826

MODEL OF LUMINESCENCE EVOLUTION IN HIGH-POWER LASER SYSTEMS BASED ON PARAMETRIC AMPLIFICATION CASCADES 
References: Frolov S. A., Leschenko V. E., Trunov V. I. MODEL OF LUMINESCENCE EVOLUTION IN HIGH-POWER LASER SYSTEMS BASED ON PARAMETRIC AMPLIFICATION CASCADES . Vestnik NSU. Series: Physics. 2014, vol. 9, no. 3. P. 7–10 (in Russ.). DOI: 10.54362/1818-7919-2014-9-3-7-10