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Proceedings Paper

Ejector COIL with supersonic nozzle bank based on trip-jet mixing system
Author(s): K. Tei; K. Hirioka; M. Shiho; K. Jyosui; M. Miyagawa; T. Fujioka
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Paper Abstract

Nozzle banks for an ejector-chemical oxygen-iodine laser consisting of two-dimensional slit nozzles with a trip-jet mixing system were tested in the cold- and hot-flow operation regimes. Horizontal Pitot scan experiments demonstrated that the mixing ability of the trips is excellent. The Mach number of the mixed flow was approximately 3. The gain measurements were conducted, and the results of measurements revealed that the maximum gain was around 0.6%/cm. The gain cut-off length was more than 200mm. The lasing experiments were also conducted, and the power was about 3kW at the chemical efficiency of about 20%.

Paper Details

Date Published: 8 May 2007
PDF: 5 pages
Proc. SPIE 6346, XVI International Symposium on Gas Flow, Chemical Lasers, and High-Power Lasers, 63460G (8 May 2007); doi: 10.1117/12.737184
Show Author Affiliations
K. Tei, Tokai Univ. (Japan)
K. Hirioka, Tokyo Institute of Technology (Japan)
M. Shiho, Tokyo Institute of Technology (Japan)
K. Jyosui, Tokai Univ. (Japan)
M. Miyagawa, Tokai Univ. (Japan)
T. Fujioka, Tokai Univ. (Japan)


Published in SPIE Proceedings Vol. 6346:
XVI International Symposium on Gas Flow, Chemical Lasers, and High-Power Lasers

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