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Proceedings Paper

Improving of flow optical quality in COIL resonator cavity as result of operation of pressure recovery system developed on base of active diffuser
Author(s): V. M. Malkov; I. A. Kiselev; A. E. Orlov; I. V. Shatalov
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Paper Abstract

Active diffuser- AD has been developed by blowing in the high pressure gas from small scale nozzles along the laser chamber walls. Blowing has stabilized boundary layers, decreased its thickness and prevented its separation. So AD operating has stabilized the gas flow parameters in resonator and localized the zone of slow down of laser flow - pseudoshock - after laser chamber. So regular shock - wave structures (X-type shocks) that could degrade the flow optical quality don't appear in resonator. The use of AD allows developing PRS on base of single-stage ejector with high ejection coefficient (usually ground -based COIL PRS consist from passive diffuser and two-stage ejector and has low ejection coefficient).

Paper Details

Date Published: 15 November 2010
PDF: 6 pages
Proc. SPIE 7751, XVIII International Symposium on Gas Flow, Chemical Lasers, and High-Power Lasers, 77510Q (15 November 2010); doi: 10.1117/12.879797
Show Author Affiliations
V. M. Malkov, Laser Systems Ltd. (Russian Federation)
I. A. Kiselev, Laser Systems Ltd. (Russian Federation)
A. E. Orlov, Laser Systems Ltd. (Russian Federation)
I. V. Shatalov, Laser Systems Ltd. (Russian Federation)

Published in SPIE Proceedings Vol. 7751:
XVIII International Symposium on Gas Flow, Chemical Lasers, and High-Power Lasers
Tanja Dreischuh; Petar A. Atanasov; Nikola V. Sabotinov, Editor(s)

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