Title :
Amplified Spontaneous Emission in Discharge-Driven HF Chemical Lasers
Author :
Chen, Xing ; Liu, Wenguang ; Chen, Yubin ; Jiang, Zongfu
Author_Institution :
Coll. of Photon-Electron Sci. & Eng., Nat. Univ. of Defense Technol., Changsha, China
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.
Keywords :
HF amplifiers; chemical lasers; light propagation; superradiance; ASE propagation; amplified spontaneous emission calculation model; discharge-driven CW HF chemical gain module; discharge-driven HF chemical Lasers; master oscillator-power amplifier configuration; small signal gain coefficient; upper state population density; Chemical lasers; Chemicals; Gain measurement; Hafnium; Laser modes; Mathematical model; Spontaneous emission; Amplified spontaneous emission (ASE); discharge-driven CW HF laser; small signal gain coefficient; upper state population density;
Journal_Title :
Quantum Electronics, IEEE Journal of
DOI :
10.1109/JQE.2012.2205223
