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

Volume

2

fYear

1999

fDate

Aug. 30 1999-Sept. 3 1999

Firstpage

155

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;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/CLEOPR.1999.811350

Filename

811350