Characteristics of Output Power of Pulsed CO₂-N₂-He Laser

Abstract

A characteristics of CO₂-N₂-He laser output power was studied under various discharge currents and total pressures (gas content ratio, CO₂:N₂:He=4.4:10.2:85.4(%)). A gold-doped germanium detector (77°K) was used to observe the pulsed laser radiation. In a pulsed discharge, the quenching effect of a laser power was observed at a critical current which is independent of total pressures. This phenomenon seems to be explained by the energy distribution of electrons which cause the excitation of CO₂ and N₂ molecules to vibrational levels in a mixture gas.