利用可调谐二极管激光器做探测光源，测量了超音速氧碘化学激光的增益谱线和增益线型。根据多普勒展宽，间接得到了超音速氧碘激光器的腔内温度。
A tunable diode laser was used to probe the gain spectra and profile of a supersonic COIL. The cavity temperature was obtained based on Doppler broadening.
谱线展宽因子是半导体激光器的重要参数之一。
Linewidth enhancement factor is one of the most important factors of semiconductor lasers.
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