Abstract

An amplified spontaneous emission (ASE) calculation model is established for the discharge-driven CW HF chemical gain module. By using a small signal gain coefficient and upper state population density, the ASE propagated outside the amplifier is calculated, where after, it is measured by experiment. The result of theory and experiment shows that the experimental results are consistent with the calculations from the simplified model. The difference between them is less than 15%. This simple model can effectively calculate the ASE in the amplifier of master oscillator-power amplifier configuration.

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