Improvement of the optical quality of the free-vortex aerodynamic windows

Anatoly S. Boreisho; A. V. Trilis; V. M. Khailov; R. I. Sericov

doi:10.1117/12.417699

1 March 2001 Improvement of the optical quality of the free-vortex aerodynamic windows

Anatoly S. Boreisho, A. V. Trilis, V. M. Khailov, R. I. Sericov

Proceedings Volume 4351, Laser Optics 2000: High-Power Gas Lasers; (2001) https://doi.org/10.1117/12.417699
Event: Laser Optics 2000, 2000, St. Petersburg, Russian Federation

Abstract

The aerodynamic windows are intended for a high power extraction from the gas laser optical cavity, where the pressure is much lower than environment pressure. The main requirements for the aerodynamic windows are to satisfy a low level of optical disturbances in a laser beam extraction channel and an air leakage absence into the optical cavity. One way of the optical quality improving consists in density drop decrease by working gas heating. Optimum heating of the jet gas improves the optical quality of aerodynamic windows. In this case they became useful for powerful DF, HF chemical lasers and COIL. Registered aberrations of the aerodynamic windows are insignificant for divergence quantity of the laser beams with wavelength for 1 to 10 microns.

Citation Download Citation

Anatoly S. Boreisho, A. V. Trilis, V. M. Khailov, and R. I. Sericov "Improvement of the optical quality of the free-vortex aerodynamic windows", Proc. SPIE 4351, Laser Optics 2000: High-Power Gas Lasers, (1 March 2001); https://doi.org/10.1117/12.417699

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