Analytical Studies For Solar-Pumped CO[sub]2[/sub] Mixing Gasdynamic Laser

K. Maeno; H. Aoyama; Y. Hanaoka; H. Arashi

doi:10.1117/12.950519

20 June 1989 Analytical Studies For Solar-Pumped CO₂ Mixing Gasdynamic Laser

K. Maeno, H. Aoyama, Y. Hanaoka, H. Arashi

Proceedings Volume 1031, 7th Intl Symp on Gas Flow and Chemical Lasers; (1989) https://doi.org/10.1117/12.950519
Event: 7th International Symposium on Gas Flow and Chemical Lasers, 1988, Vienna, Austria

Abstract

The present paper treats the analytical predictions for characteristics of solar-pumped CO2 mixing gasdynamic laser that is going to be investigated experimentally by solar collector in Tohoku University. As the efficiency of solar collector is high in space, CO2 gasdynamic laser can be the hopeful candidate for space laser because of its high power and possibility of combination with heat engines. Experimental approach is planned by the solar collector of 10m aperture in Research Institute for Scientific Measurements. With this collector in mind, numerical estimation on CO2 mixing gasdynamic laser is conducted. According to data of the collector, the stagnation conditions of solar-thermally heated N9 are estimated. Mass flux of N2 from plenum can be calculated with including the assumea thermal efficiency, and cross sectional area of N2 throat is obtained. Quasi-onedimensional analysis for vibrationally nonequilibrium supersonic flow is conducted. The extracted power is also estimated numerically. Parametric studies are performed on this mixing laser concept, especially for CO2 stagnation conditions, and optimum operation conditions are clarified.

Citation Download Citation

K. Maeno, H. Aoyama, Y. Hanaoka, and H. Arashi "Analytical Studies For Solar-Pumped CO₂ Mixing Gasdynamic Laser", Proc. SPIE 1031, 7th Intl Symp on Gas Flow and Chemical Lasers, (20 June 1989); https://doi.org/10.1117/12.950519

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KEYWORDS

Carbon dioxide

Gas lasers

Carbon dioxide lasers

Reflectivity

Mirrors

Helium

Resonators

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