The reflectivity of optical mirrors can be obtained by measuring linewidth of transmission spectrum of optical cavity and the fineness of Fabry-Perot (F-P) cavity.
谐振腔精细度法是通过测量光学谐振腔透射谱线宽度来实现对光学反射镜反射率的测定。
By using a laser cavity which consists of only two gratings and a resonant reflector, a N2-laser-pumped dye laser with a spectral linewidth of 1.3 GHz has been made.
利用仅由两个光栅和一个共振反射器组成的激光腔，就能得到线宽为1.3千兆赫的由N_2激光泵浦的染料激光。
The linewidth of an external cavity semiconductor laser(LD) is presented quantum-mechanically. The best feedback conditions are given for the suppression of LD linewidth.
本文用量子力学的方法求得了外腔半导体激光器（LD）的线宽，给出了抑制LD线宽的最佳反馈条件。
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