利用一点光源和一束倾斜平行光拍摄了一种离轴全息透镜，并对其傅里叶变换特性进行了分析。
The Fourier transform characteristics of off-axis hololens was discussed, which was made by using a dot light source and an inclined parallel light.
半导体光放大器（SOA）的非线性特性在光开关、波长变换、光逻辑运算中有重要的应用。
The nonlinear characteristics of semiconductor optical amplifier (SOA) have important applications for the all-optical switching, wavelength conversion, and optical logic gate.
结果表明，它的变换特性依赖于光功率、入射光束的束腰、物距以及透镜参数。
It is shown that the transformation characteristics depend on optical beam power, the beam waist of incident beams, object distance and lens parameters.
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