Gain saturation in a moving active medium

Jan I. H. Askne

Valentin S. Idiatulin

Mohammad Azadeh, Lee W. Casperson

This study deals with the topic of reflection and refraction of light from the boundary of a high-gain saturating laser amplifier. Expressions for the electric field and intensity reflection and transmission coefficients are obtained for the case of a wave in a uniform dielectric that is incident normally on a nonlinear saturating active medium. Bistability effects are predicted even for the simplest case of zero frequency detuning from the line centre of the saturating transition.

Jie Wang, Wenzhe Liu, Dezhuan Han +3 more

A I Galiev, Vadim Vladimirovich Semashko, O R Akhtyamov +4 more

Aim of this work was to investigate nonlinear absorption of pump radiation in UV spectral range of Ce 3+ :LiCaAlF 6 crystalline active medium. We were able to evaluate excited state absorption cross-section at pump wavelength (266 nm) and recombination probabilities by means of computer simulation.

Katherine L. Hall, Erik R. Thoen, Erich P. Ippen