Pulsed-Periodic Generation of Laser on SR I and SR II Transitions With High Gain Under Conditions of Ionization and Recombination Plasma Inhomogeneity

Parametrical investigations of pulsed-periodic strontium vapor laser are carried out. Conditions of simultaneous generation on strontium atom and ion transitions (λ = 1.03 and 1.09 μm; 2.69, 2.6, 2.92, 3.01 and 3.06 μm; and 6.45 μm) formed during the period of ionization plasma inhomogeneity on the leading front of the excitation pulse and on strontium ion transitions (λ = 416.2 and 430.5 nm) formed during the period of recombination plasma inhomogeneity in the near afterglow of the discharge are determined. Simultaneous generation is understood as the presence of all generation lines per excitation period of high-voltage pulsed-periodic discharge in one resonator whose nontransmitting mirror has the reflection coefficient ≥90% and a CaF 2 plane-parallel plate without deposited coating is used as an output mirror.