Title :
High-pressure subsonic operation of chemical oxygen-iodine laser
Author :
Endo, M. ; Wani, F. ; Fujioka, T.
Author_Institution :
Dept. of Electro-Photo Opt., Tokai Univ., Hiratsuka, Japan
fDate :
Aug. 30 1999-Sept. 3 1999
Abstract :
A new regime of chemical oxygen-iodine laser (COIL) operation in the high-pressure subsonic mode was demonstrated. 342 W output with 20.9% chemical efficiency was obtained at the Cl/sub 2/ flow rate of 18 mmol/s. The operating pressure at the laser cavity was 6.4 Torr, and it is equivalent to 3.1 J/l of specific energy. The specific energy obtained was four times as high as supersonic operation, and to our knowledge, that is the highest specific energy reported. The experimental results were in good agreement with the numerical simulation results.
Keywords :
chemical lasers; chemically reactive flow; iodine; laser beams; laser cavity resonators; oxygen; subsonic flow; 20.9 percent; 3.1 J; 342 W; 6.4 torr; COIL; Cl/sub 2/ flow rate; O/sub 2/-I; O/sub 2/-I laser; chemical efficiency; chemical laser; experimental results; high-pressure subsonic mode; high-pressure subsonic operation; laser cavity; laser operation; numerical simulation; operating pressure; specific energy; supersonic operation; Chemical industry; Chemical lasers; Ducts; Gas lasers; Laser modes; Laser theory; Numerical simulation; Optical pumping; Pump lasers; Vacuum systems;
Conference_Titel :
Lasers and Electro-Optics, 1999. CLEO/Pacific Rim '99. The Pacific Rim Conference on
Conference_Location :
Seoul, South Korea
Print_ISBN :
0-7803-5661-6
DOI :
10.1109/CLEOPR.1999.811350
