DocumentCode :
1088472
Title :
Operating conditions of the slotted hollow cathode UV Cu+laser
Author :
Auschwitz, Bodo ; Eichler, Hans J. ; Wittwer, Wolfram
Author_Institution :
Optisches Institut, Technische Universität Berlin, Berlin, Germany
Volume :
17
Issue :
4
fYear :
1981
fDate :
4/1/1981 12:00:00 AM
Firstpage :
546
Lastpage :
553
Abstract :
The performance of the UV Cu+ laser in a slotted hollow cathode has been investigated experimentally. The laser power dependent on discharge current, neon pressure, cathode length, and laser mirror transmission has been measured. The optimum neon pressure was found to be 13 mbar. Single-pass gains about 8 percent . m-1have been evaluated. The observed changes in the slot shape by sputtering during 100 h of operation are briefly discussed. The experimental results are compared to a recent sputtering theory and reasonable agreement is found. The sputtering theory, the spontaneous intensity measurements, and the evaluated gains are used to calculate the number densities of the 5s Cu+ levels. Laser power is calculated from single-pass gains and agreement with experimental results is obtained.
Keywords :
Gas lasers; Ultraviolet lasers; Cathodes; Current measurement; Density measurement; Length measurement; Mirrors; Power lasers; Power measurement; Pressure measurement; Shape; Sputtering;
fLanguage :
English
Journal_Title :
Quantum Electronics, IEEE Journal of
Publisher :
ieee
ISSN :
0018-9197
Type :
jour
DOI :
10.1109/JQE.1981.1071123
Filename :
1071123
Link To Document :
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