Simultaneous high-power pulsed lasing in a TEA CO2 laser on lines of the first two sequence bands

The first report is given of the realization of a TEA CO₂ laser operating regime in which the emission spectrum contains simultaneously two frequencies belonging to lines of the 00⁰1–[10⁰0, 02⁰0]_I,II and 00⁰2–[10⁰1, 02⁰1]_I,II bands separated from each other by 0.2–0.6 cm^–1. It was found that the use of partial-bleaching selective losses was a suitable method for realizing this regime. Radiation having these spectral characteristics can be applied to solve a number of problems involving selective interaction with matter and laser monitoring of the atmosphere.