Study of RF Excited CO 2 Waveguide Laser Array

RF excited CO2 waveguide laser arrays with three different structures (one-dimension and two-dimension) are reported in this paper. The output character of far-field and near-field of those lasers have studies and the phase locking between the waveguide elements has discussed. The cavity length of waveguide laser array is 380 mm and the resonator is formed by placing a plane germanium coated gold mirror and a plane ZnSe output coupler. The laser is operated with filling static gas of He:N2:CO2:Xe=3:1:1:0.1 mixture at 1.06×104 Pa total pressure. High output power density is achieved and the output power is 30-w with an efficiency η=10%. The output power is limited by the maximum power of RF transmitter.