Overtone research, advanced chemical laser module design

An intermediate-size module that will serve as a building block of an advanced high-power HF/DF chemical laser is described. The module is based on an optimized hypersonic, low- temperature (HYLTE) nozzle concept. The primary objective of the program is a high- efficiency, high-power demonstration of HF overtone lasing. The resulting device is called overtone research advanced chemical laser (ORACL). A secondary objective is an improved chemical laser gain generator for HF fundamental and DF lasing.