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以脉冲多模红宝石激光器作光源，用全息干涉法测试了小５０×５００ｍｍ的钕玻璃棒的动态畸变，给出了光泵过程中动态畸变的照片。求出了折射率方程，并计算了方程中的诸系数，对畸变的补偿问题作了分析。
Using pulsed multimode ruby laser as light source, the dynamic distortion of a small 50 × 500mm neodymium glass rod was measured by holographic interferometry, and the picture of the dynamic distortion in the light pump was given. The refractive index equation was calculated, and the coefficients in the equation were calculated, and the problem of distortion compensation was analyzed.