A self-contained, recirculating chemical laser system

The operation of the first self-contained, recirculating chemical laser device is reported. This electrically initiated chemical laser employs a unique gas recirculation scheme in which the laser effluence generated in the laser discharge is subjected to selective scrubbing within the vacuum envelope before it is reintroduced into the laser cavity. The laser system is completely self-contained and employs no exhaust pump. Consequently, in contrast to conventional chemical laser systems, the problems associated with exhausting toxic gases into the environment are eliminated. Experimental data relating to electrically pulsed DF and HF chemical lasers operating for extended periods of time in a self-contained, recirculating mode are presented.