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Measurement of small-signal gain on COIL with chemically generated molecular iodine
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SYSNO ASEP 0353726 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Measurement of small-signal gain on COIL with chemically generated molecular iodine Author(s) Jirásek, Vít (FZU-D) RID
Špalek, Otomar (FZU-D)
Čenský, Miroslav (FZU-D) RID
Kodymová, Jarmila (FZU-D) RIDSource Title IEEE Journal of Quantum Electronics - ISSN 0018-9197
Roč. 46, č. 9 (2010), s. 1350-1353Number of pages 4 s. Language eng - English Country US - United States Keywords chemical lasers ; iodine ; gain measurement Subject RIV BH - Optics, Masers, Lasers CEZ AV0Z10100523 - FZU-D (2005-2011) UT WOS 000282564000003 DOI 10.1109/JQE.2010.2048555 Annotation A chemical gas-phase reaction between Cl2 and HI was used in the generation of molecular iodine for the chemical oxygen-iodine laser (COIL) operation. A yield of I2 in the generation reaction up to 85% was achieved in a reasonable volume of the reactor. A small-signal gain up to 0.75 %/cm at a temperature of 150 K in the center of supersonic cavity was measured. A comparison with the established evaporation way of I2 delivery confirmed that the chemical method has little or no impact on the COIL pumping kinetics. This chemical method is easily scalable and can simplify the COIL operation by providing better control of I2 flow rate. Workplace Institute of Physics Contact Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579 Year of Publishing 2011
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