Development of a YAG laser system for the edge Thomson scattering system in ITER

A prototype YAG laser system for the edge Thomson scattering system in ITER has been newly developed. Performance of the laser amplifier was improved by using flow tubes made of samarium-doped glass; the small signal gain reached 20 at its maximum. As a result, an output energy of 7.66 J at 100 Hz w...

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Veröffentlicht in:	Review of scientific instruments 2012-10, Vol.83 (10), p.10E344-10E344
Hauptverfasser:	Hatae, T, Yatsuka, E, Hayashi, T, Yoshida, H, Ono, T, Kusama, Y
Format:	Artikel
Sprache:	eng
Schlagworte:	70 PLASMA PHYSICS AND FUSION TECHNOLOGY Amplification AMPLIFIERS BOUNDARY LAYERS CONFINEMENT DOPED MATERIALS GAIN GLASS INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY ITER TOKAMAK LASER RADIATION Lasers NEODYMIUM LASERS PLASMA PLASMA DIAGNOSTICS SAMARIUM ADDITIONS Semiconductor lasers THOMSON SCATTERING Tubes YAG lasers YTTRIUM COMPOUNDS
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Zusammenfassung:	A prototype YAG laser system for the edge Thomson scattering system in ITER has been newly developed. Performance of the laser amplifier was improved by using flow tubes made of samarium-doped glass; the small signal gain reached 20 at its maximum. As a result, an output energy of 7.66 J at 100 Hz was successfully achieved, and the performance exceeded the target performance (5 J, 100 Hz).
ISSN:	0034-6748 1089-7623
DOI:	10.1063/1.4738658