Downsizing of chemical oxygen-iodine laser with a turbo blower

The downsizing of Chemical Oxygen-Iodine Laser (COIL) was achieved by applying a turbo blower to a high gas pressure operation of a subsonic COIL. The size of the vacuum system was a factor of 3 smaller than that of the existing one. The laser output power of 290 W with chemical efficiency of 17.1% was obtained at the Cl2 flow rate of 18.6 mmol/s and the laser cavity pressure of 6 Torr.