Xt. Tang et al., OPTICAL PHASE-SHIFTED ARRAY RESONATOR USED IN RADIO-FREQUENCY-EXCITEDSLAB WAVE-GUIDE CO2-LASERS, Optical engineering, 37(1), 1998, pp. 266-271
An optical resonator with a phase-shifting array end mirror is present
ed to obtain an output beam of spatially suppressed far-field intensit
y distribution from a CO2 laser with a slab waveguide gain medium. A h
ighly spatially suppressed single-peak intensity distribution in the f
ar field and a power of 46 W have been obtained from a 200-mm-gain-len
gth device. (C) 1998 Society of Photo-Optical Instrumentation Engineer
s. [S0091-3286(98)03001-3].