Optical quality of a combined aerodynamic window

Keming Du; Joachim Franek; Peter Loosen; H. Zefferer; Junquan Shen

doi:10.1117/12.26008

1 February 1991 Optical quality of a combined aerodynamic window

Keming Du, Joachim Franek, Peter Loosen, H. Zefferer, Junquan Shen

Proceedings Volume 1397, 8th Intl Symp on Gas Flow and Chemical Lasers; (1991) https://doi.org/10.1117/12.26008
Event: Eighth International Symposium on Gas-Flow and Chemical Lasers, 1990, Madrid, Spain

Abstract

The novel aerodynamic window with a pump cavity and a supersonic gas jet described in /1/ shows considerable improvements in operation performances such as shock-free operation range, reduction of the mass flow rate as well as operation stability. Its optical quality at different operation states has been investigated firstly with the schlieren method. Then the window was combined with a 5 kW CO2 laser using an unstable resonator. The influences of the window on the laser beam quality at different operation states have been investigated. The results will be presented in this paper.

Citation Download Citation

Keming Du, Joachim Franek, Peter Loosen, H. Zefferer, and Junquan Shen "Optical quality of a combined aerodynamic window", Proc. SPIE 1397, 8th Intl Symp on Gas Flow and Chemical Lasers, (1 February 1991); https://doi.org/10.1117/12.26008

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