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Proceedings Paper

Operational characteristics of different electrode systems in fast-transverse-flow CO2 lasers
Author(s): M. G. Gonzalez; Guillermo D. Santiago
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Paper Abstract

Time-consuming, trial and error methods have usually been key tools in the design and search of optimum performance of the electrodes in fast-transverse-flow CO2 lasers. These tests sought a large, uniformly pumped volume and high small-signal gain. The later is determined by a complex interaction between the electron density, the flow speed and the electron generation and recombination processes that have not been taken into account in previous reports. In order to overcome these problems we have developed a simple analytical model that includes the above mentioned processes. The results enabled us to evaluate the performance of several electrode systems using data obtained in our laboratory and from other authors' reports. The first experiments were carried out with an already tested electrode set; afterwards we developed a new electrode profile that provided an expanded, uniformly pumped volume and higher small-signal gain. The predictions of the model were verified through the measurement of the spatial gain distribution.

Paper Details

Date Published: 21 October 2004
PDF: 6 pages
Proc. SPIE 5622, 5th Iberoamerican Meeting on Optics and 8th Latin American Meeting on Optics, Lasers, and Their Applications, (21 October 2004); doi: 10.1117/12.589249
Show Author Affiliations
M. G. Gonzalez, Univ. de Buenos Aires (Argentina)
Guillermo D. Santiago, Univ. de Buenos Aires (Argentina)


Published in SPIE Proceedings Vol. 5622:
5th Iberoamerican Meeting on Optics and 8th Latin American Meeting on Optics, Lasers, and Their Applications
Aristides Marcano O.; Jose Luis Paz, Editor(s)

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