光束焦深区热晕效应实验研究

Experiment of the Thermal Blooming in the Beam Focusing Range

进行了聚焦光束焦深区稳态热晕效应的实验观测，获得了在不同热畸变参数情况下，相对光斑半径和Ａｒｒｙ斑面积内光强的测量结果．实验表明主激光焦深区热晕效应对信标光接收瞳面上的光强分布影响较大．

The focused-beam thermal blooming effect in the focusing range is studied experimentally. For steady thermal blooming, the variation of the relative radius of the focusing spot vs the distortion number Nd and the variation of the focusing spot intensity integration over the Arry size vs the ratio of incident power to critical power are obtained. It indicates that the blooming in focusing range has serious influence on the beacon intensity distribution at the receiving pupil.