平顶高斯光束经含失调圆孔光阑的失调光学系统的传输特性

为分析平顶高斯光束通过光学系统传输时圆孔光阑失调和光学元件失调对平顶高斯光束传输特性的影响,利用失调圆孔光阑的近似展开式和适用于失调光学系统的广义衍射公式,得出了平顶高斯光束经含失调圆孔光阑的失调光学系统传输的近似解析式,给出了输出光束场分布与光束参量、光阑孔径尺寸、光阑和光学元件失调量等的定量关系.针对特定光学系统定量分析了各失调量对输出光束场分布的影响,结果表明各元件失调都对输出光束强度分布产生较大影响.但在各失调量较小的情况下,透镜失调对输出光束传输特性的影响比光阑失调对输出光束传输特性的影响更明显.

Propagation Properties of Flattened Gaussian Beams Passing Through an Misaligned Optical System with Misaligned Circular Aperture

To analyze the influence of misaligned parameters of circular aperture and optical component on propagation properties of flattened Gaussian beam when flattened Gaussian beams passing through an optical system,an approximate analytical expression of the output field distribution for flattened Gaussian beam passing through an misaligned optical system with misaligned circular aperture is derived using approximate expanded formula of misaligned circular aperture function and generalized diffraction formula appropriate for misaligned optical system.The relations of output field distribution to the parameters of flattened Gaussian beam,the aperture size and various misaligned parameters of aperture and optical element,etc.are given.Some influences of various misaligned parameters on output field distribution are analyzed quantificationally for given optical system.Result shows that various misaligned components effect on the intensity distribution of output beam.But the influence of misaligned lens is more obvious than that of misaligned aperture when misaligned parameters value is small.