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Proceedings Paper

Specific output power scaling of kinetically-enhanced copper vapor lasers
Author(s): Richard P. Mildren; M. J. Withford; J. A. Piper; G. D. Marshall
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Paper Abstract

We have investigated the power scaling behavior of a kinetically enhanced copper vapor laser as a function of the plasma tube thermal insulation. By reducing the insulation to levels much lower than typically used for conventional copper vapor lasers we obtained increases in the specific output power of a small-to-medium scale device (0.8L) up to 130W/litre (i.e., total output power 104W). The laser wall-plug efficiency remains approximately constant (~1.4%) when the supplied power is increased from 5.9kW to 7.4kW. Radially-resolved Cu density measurements show that the depletion of Cu atoms is similar to other devices having much lower specific input power. The results show that kinetic enhancement reduces the depletion of atoms from the axial region by ion-pumping due to reduced fractional ionization and rapid charge recombination during the interpulse period.

Paper Details

Date Published: 10 November 2003
PDF: 6 pages
Proc. SPIE 5120, XIV International Symposium on Gas Flow, Chemical Lasers, and High-Power Lasers, (10 November 2003); doi: 10.1117/12.515483
Show Author Affiliations
Richard P. Mildren, Macquarie Univ. (Australia)
M. J. Withford, Macquarie Univ. (Australia)
J. A. Piper, Macquarie Univ. (Australia)
G. D. Marshall, Clarendon Lab. (United Kingdom)

Published in SPIE Proceedings Vol. 5120:
XIV International Symposium on Gas Flow, Chemical Lasers, and High-Power Lasers
Krzysztof M. Abramski; Edward F. Plinski; Wieslaw Wolinski, Editor(s)

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