Effect on the cw hydrogen/deuterium fluoride chemical laser with different diluents

Zhongfu Jiang; Weihong Hua; Jinbao Chen; Yijun Zhao

doi:10.1117/12.253303

30 September 1996 Effect on the cw hydrogen/deuterium fluoride chemical laser with different diluents

Zhongfu Jiang, Weihong Hua, Jinbao Chen, Yijun Zhao

Proceedings Volume 2889, High-Power Lasers: Solid State, Gas, Excimer, and Other Advanced Lasers; (1996) https://doi.org/10.1117/12.253303
Event: Photonics China '96, 1996, Beijing, China

Abstract

The He is usually used as diluent in combustion cw hydrogen/deuterium fluoride (HF/DF) chemical lasers. Sometimes, the N₂ is also used as diluent in cw HF/DF chemical laser, because N₂ is more cheaper than the He. It was thought that the efficiency of cw HF/DF laser with N₂ diluent was lower than that of HF/DF laser with He diluent since the molecular weight of N₂ is heavier than that of He. In this paper, the performance of cw DF chemical lasers with He and N₂ diluent was investigated. The small signal gain, power spectral distributions, cavity pressure, power and efficiency of DF lasers with these two diluents have been calculated using a finite-difference technique for the numerical integration of the steady and unsteady Navier-Stokes equation with reactive flow (compressibility scaling method-CSM), which was developed in the chemical gas dynamic laboratory of the state institute of applied chemistry in Russia. The numerical results show that the efficiency of DF lasers with N₂ diluent is not lower than that of the lasers with He diluent.

Citation Download Citation

Zhongfu Jiang, Weihong Hua, Jinbao Chen, and Yijun Zhao "Effect on the cw hydrogen/deuterium fluoride chemical laser with different diluents", Proc. SPIE 2889, High-Power Lasers: Solid State, Gas, Excimer, and Other Advanced Lasers, (30 September 1996); https://doi.org/10.1117/12.253303

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