Spectral and energy parameters of a pulsed F2—(H2+D2)–He-mixture HF/DF laser

Theoretical and experimental studies of spectral and energy characteristics of radiation of a photoinitiated HF/DF laser working on the chain reaction in the F₂:(H₂+D₂):O₂:He=3:1:0.3:6.7 mixture are performed under atmospheric pressure as functions of the ratio of the initial concentrations of H₂ and D₂ and the resonator losses. Optimal conditions are determined for simultaneous lasing in HF and DF molecules in the spectral range 2.7 – 4.8 μm.