[00148090]二维大规模激光束阵列占空比调节装置

一种二维大规模激光束阵列占空比调节装置,包括共轴放置的凸面角锥棱镜与凹面角锥棱镜,两角锥棱镜直径相同,边缘厚度相同,圆锥面互补。该装置可以实现二维排布的大规模激光束阵列占空比的调节,从而提高相干合成远场艾里斑的亮度。该装置具有占空比调节范围大,调节方便,结构简单紧凑,稳定性高等优点。 | Provided is a duty ratio adjusting device of a 2D large-scale laser beam array. The device comprises a convex pyramid prism and a concave pyramid prism, wherein the convex pyramid prism and concave pyramid prism are arranged coaxially, the diameters of the two pyramid prisms are the same, the edge thickness of the two pyramid prisms are the same, and conical surfaces of the two pyramid prisms are complementary. The device can adjust the duty ratio of the 2D large-scale laser beam array, and further improve the brightness of far-field Airy points of coherent combination. The device has the advantages including wide duty-ratio adjustment range, convenient adjustment, simple and compact structure and high stability。