使用空间光调制器产生高阶厄米高斯光束

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提出通过单个空间光调制器制备厄米高斯(HG)光束的方法,理论上分析了输入光束空间横向分布与模式转换效率的关系,实验上采用最佳的椭圆形光斑入射,获得了高质量的HG6,0、HG8,0、HG10,0模光场,纯度分别为96.2%,94.9%,93.4%,并且HG10,0模的转换效率达到了14.45%,输出功率为217 mW,其转换效率较传统的基模高斯光束入射时提高了5.6倍。此高质量及高效的高阶厄米高斯光束制备方法,有望应用于高阶空间压缩态光场制备和空间小位移精密测量等方面。
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