Building on previous work with rod-based solid-state lasers, we propose to investigate the utility of demonstrating 100 kW class diode-pumped Yb:YAG slab lasers by operating the laser cooling system at cryogenic (77 ¡K) temperatures. The major objectives of the proposed Phase I program are to extend our thermal and stress modeling to slab lasers, build a model of expected optical performance, and to develop one or two practical concepts for implementing an experimental demonstration. Following a successful Phase I program, during Phase II we would experimentally demonstrate the first cryogenically-cooled high-average-power solid-state laser. This work has obvious applications in ballistic missile defense and laser materials processing, and is expected to elucidate the high-average-power capability of Nd:YAG and Yb:YAG solid-state lasers operating at room temperature as well. LE Systems expects that the industrial and medical communities will benefit from the development of cryogenic cooled device, at all power levels.
Keywords: Laser Weapons, Commercial Market, Cryogenic Cooled, Laser System, Yb:Yag, Slab Laser Technology
