Lommel光束是由Lommel函数描述的一种结构复杂的无衍射光束，其光学形态可由阶数n、不对称度c0、旋转角度?0等3个参数调控，三参数Lommel光束结构复杂，实验上较难产生。引入了一种复振幅调制技术来产生Lommel光束，利用罗曼型迂回相位编码法，对复杂波前的振幅和相位进行编码，构造出能够产生Lommel光束的二元计算全息图，然后使用全息直写打印系统，将由计算机构建的二元计算全息图加工成实振幅掩模板，实验制备了像素数高达35000 pixel×35000 pixel的掩模板，最终方便地产生了高质量的Lommel光束，该研究方法也为产生其他具有复杂结构的无衍射光束提供了思路。

Lommel beams are a type of complex-structure nondiffractive beams expressed by the Lommel function. Their optical features can be adjusted using three parameters: order n, asymmetry c0, and rotation angle ?0. However, the optical structure of a Lommel beam is complex, making it challenging to be produced experimentally. In this study, we introduce a complex amplitude modulation technique to generate nondiffractive Lommel beams. The amplitude and phase of complex wavefronts are simultaneously encoded using the Lohmann-type detour phase-coding method. High-quality Lommel beams are produced by processing the computer-generated hologram into a real amplitude mask using the holographic direct-writing printing system. In the experiments, the mask plate reaches 35000 pixel×35000 pixel. Furthermore, this study provides a general approach for producing nondiffractive beams with other different complex structures.