Application of a telescopic resonator to high-power chemical oxygen-iodine lasers

Author

Yoshida, Sanichiro ; Shimizu, Kouki ; Tahil, Hari ; Tanaka, Ikuzo

Author_Institution

Laser Lab., Inst. of Res. & Innovation, Chiba, Japan

Volume

30

Issue

1

fYear

1994

fDate

1/1/1994 12:00:00 AM

Firstpage

160

Lastpage

166

Abstract

The application of an intraresonator telescope to high-power chemical oxygen-iodine lasers to decrease the output beam divergence is analyzed and demonstrated. A theoretical formula based on the ABCD matrix theory is developed to analyze the characteristics of the telescopic resonator. Calculations are carried out using Galilean type telescopes with magnification factors in the range of two to four, and our high-power chemical oxygen-iodine laser as an analysis model. By locating the telescope at a proper position on the optical axis, the overall telescopic resonator can be conveniently tailored to the hardware of this model laser in a way that the beam divergence and the resonator stability can be improved simultaneously. Experiments are carried out for one of the conditions used in the calculations. Measured divergence angles are in excellent agreement with the theoretical values

Keywords

chemical lasers; iodine; laser beams; laser cavity resonators; oxygen; telescopes; ABCD matrix theory; COIL laser; Galilean type telescopes; O₂-I; analysis model; divergence angles; hardware; high-power chemical oxygen-iodine lasers; intraresonator telescope; magnification factors; output beam divergence; resonator stability; telescopic resonator; Chemical analysis; Chemical lasers; Goniometers; Hardware; Laser beams; Laser modes; Laser stability; Laser theory; Optical resonators; Telescopes;

fLanguage

English

Journal_Title

Quantum Electronics, IEEE Journal of

Publisher

ieee

ISSN

0018-9197

Type

jour

DOI

10.1109/3.272075

Filename

272075