CO2 Laser Optically Pumped by a Tunable 4.3 μm Laser Source

A 10 μm CO2 laser optically pumped by a tunable Fe: ZnSe laser is reported. Gain dynamics, slope efficiency, and self-focusing are studied, demonstrating potential use of an optically pumped CO2 medium for picosecond pulse amplification. © 2019 The Author(s)