Characteristics Of C[sub]6[/sub]H[sub]6[/sub]-O[sub]2[/sub]-N[sub]2[/sub] Type CO[sub]2[/sub] Gasdynamic Laser

Tadaharu Watanuki; Shigeru Sato; Yoshiya Itakura; Eiji Ogura; Yasuhiro Mizobuchi; Hirotoshi Kubota

doi:10.1117/12.950514

20 June 1989 Characteristics Of C₆H₆-O₂-N₂ Type CO₂ Gasdynamic Laser

Tadaharu Watanuki, Shigeru Sato, Yoshiya Itakura, Eiji Ogura, Yasuhiro Mizobuchi, Hirotoshi Kubota

Proceedings Volume 1031, 7th Intl Symp on Gas Flow and Chemical Lasers; (1989) https://doi.org/10.1117/12.950514
Event: 7th International Symposium on Gas Flow and Chemical Lasers, 1988, Vienna, Austria

Abstract

Characteristics of a C6116-02-N2 type combustion-driven CO2 gasdynamic laser, which should be a radiation heating simulator for re-entry of a planetary probe and AOTV, are experimentally and theoretically investigated. Small-signal gain coefficients are obtained for supersonic nozzle expansion ratios of 5, 7.5, 10, 15 and 20. The result shows : 1) qualitative agreement is obtained between the present measurements and the numerical analysis, 2) the small-signal gain grows as the nozzle expansion ratio is increased, and 3) there exists an optimum plenum pressure for small-signal gain coefficient under a certain expansion ratio of supersonic nozzle.

Citation Download Citation

Tadaharu Watanuki, Shigeru Sato, Yoshiya Itakura, Eiji Ogura, Yasuhiro Mizobuchi, and Hirotoshi Kubota "Characteristics Of C₆H₆-O₂-N₂ Type CO₂ Gasdynamic Laser", Proc. SPIE 1031, 7th Intl Symp on Gas Flow and Chemical Lasers, (20 June 1989); https://doi.org/10.1117/12.950514

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