Ring and axis mode lasing in quasi-stadium laser diodes with concentric end mirrors.
Ring and axis mode lasing in quasi-stadium laser diodes with concentric end mirrors.
复制标题
具有同心端镜的准体育场激光二极管中的环模和轴模激光。
作者：
T. Fukushima;T. Harayama;P. Davis;P. Vaccaro;T. Nishimura;T. Aida
我们制作了准体育场激光二极管，其谐振腔由两个同心的弯曲端面镜和两个直边镜组成。我们观察到两个激光模式，对应于不同的光束传播沿着腔轴和沿着一个环的轨迹，和不同的远场图案与宽角分离。可以通过控制电极图案来选择模式。我们还表明，由扩展的Fox-Li模式计算方法数值计算得到的远场图案与实验结果符合得很好。
We fabricated quasi-stadium laser diodes whose resonators consist of two concentric curved end mirrors and two straight sidewall mirrors. We observed two lasing modes that correspond to different beam propagations along the cavity axis and along a ring trajectory, and different far-field patterns with wide angular separation. The modes can be selected by control of an electrode pattern. We also show that the far-field patterns numerically obtained by the extended Fox-Li mode calculation method are in good agreement with the experimental results.