Phillip-Rutz E M, Edmonds H D
Appl Opt. 1969 Sep 1;8(9):1859-65. doi: 10.1364/AO.8.001859.
To obtain diffraction-limited radiation, a GaAs injection laser of 185 micro width was operated with an external resonator. The measured far-field radiation of this laser appears to be mainly in the lowest order transverse mode over nearly the entire width of the p-n junction. The peak radiated power at room temperature is 2.2 W and the external quantum efficiency is 0.031. The external resonator of the diffraction-limited GaAs laser has spherical symmetry although the lasing junction is asymmetrical and no mode-selecting iris is included. The operation of the GaAs laser with the external resonator resulted in a radiance increase of more than one magnitude.
为了获得衍射极限辐射，一个宽度为185微米的砷化镓注入激光器与一个外腔一起工作。该激光器测得的远场辐射在p-n结几乎整个宽度上似乎主要处于最低阶横向模式。室温下的峰值辐射功率为2.2瓦，外量子效率为0.031。尽管激射结是不对称的且没有包含模式选择光阑，但衍射极限砷化镓激光器的外腔具有球对称性。砷化镓激光器与外腔一起工作使辐射亮度增加了一个多数量级。
