Theoretical and experimental studies of a multiline TEA CO2laser with hot CO2as an intracavity absorber

Author

Nath, A.K. ; Chatterje, U.K.

Author_Institution

Univ. of Alberta, Alta., Canada

Volume

16

Issue

11

fYear

1980

fDate

11/1/1980 12:00:00 AM

Firstpage

1263

Lastpage

1266

Abstract

The multiline behavior of a ballast resistance helical TEA CO2laser incorporating hot CO2as an intracavity absorber has been studied. Simultaneous laser oscillation on $P(16), P(18)$ , and $P(20)$ lines of 10.6 μm has been obtained reliably. A rate equation model has been developed for the hot CO2absorber and is incorporated with the model for the multiline TEA CO2laser for calculating laser intensities on $P(16), P(18), P(20)$ , and $P(22)$ lines of the 10.6 μm band in the presence of the absorber. The theoretical calculations agree quite well with the experimental observations. These studies show that a hot CO2column of Proper length and temperature inside a TEA CO2laser cavity can produce simultaneous laser oscillation on at least three rotational lines $P(16), P(18)$ , and $P(20)$ of the 10.6 μm band with almost equal intensity.

Keywords

Carbon dioxide lasers; Laser absorbers; Electronic ballasts; Equations; Gas lasers; Helium; Laser modes; Laser theory; Laser transitions; Mirrors; Oscillators; Temperature;

fLanguage

English

Journal_Title

Quantum Electronics, IEEE Journal of

Publisher

ieee

ISSN

0018-9197

Type

jour

DOI

10.1109/JQE.1980.1070390

Filename

1070390