GAIN MEASUREMENTS IN A FLUID MIXING CO2 LASER SYSTEM

Abstract

Small-signal gain coefficients for the P(18) vibration—rotation transition of CO2 at 10.57 μ have been measured in a high-velocity gas flow system utilizing the rapid mixing of vibrationally excited N2 with initially unexcited CO2. These measurements demonstrate that very high gain coefficients which are approximately independent of dimensions transverse to the flow can be realized in high-speed flow systems.