Open AccessDevelopment of two color laser diagnostics for the ITER poloidal polarimeter
Author(s) -
K. Kawahata,
T. Akiyama,
K. Tanaka,
Kenichi Nakayama,
S. Okajima
Publication year - 2010
Publication title -
review of scientific instruments
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.605
H-Index - 165
eISSN - 1089-7623
pISSN - 0034-6748
DOI - 10.1063/1.3479119
Subject(s) - polarimeter , laser , optics , interferometry , physics , inertial confinement fusion , terahertz radiation , plasma diagnostics , optoelectronics , plasma , polarimetry , nuclear physics , scattering
wo color laser diagnostics using terahertz laser sources are under development for a high performance operation of the Large Helical Device and for future fusion devices such as ITER. So far, we have achieved high power laser oscillation lines simultaneously oscillating at 57.2 and 47.7?μm by using a twin optically pumped CH3OD laser, and confirmed the original function, compensation of mechanical vibration, of the two color laser interferometer. In this article, application of the two color laser diagnostics to the ITER poloidal polarimeter and recent hardware developments will be described
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