Image Processing Systems Institute of the Russian Academy of Sciences, Molodogvardeiskaya Street 151, Samara 443001, Russia.
Opt Lett. 2012 Jun 15;37(12):2385-7. doi: 10.1364/OL.37.002385.
We propose a new approach to generating a pair of initial beams for a polarization converter that operates by summing up two opposite-sign circularly polarized beams. The conjugated pairs of vortex beams matched with laser modes are generated using binary diffractive optical elements (DOEs). The same binary element simultaneously serves two functions: a beam shaper and a beam splitter. Two proposed optical arrangements are compared in terms of alignment complexity and energy efficiency. The DOEs in question have been designed and fabricated. Natural experiments that demonstrate the generation of vector higher-order cylindrical beams have been conducted.
我们提出了一种新的方法来产生一对初始光束，用于通过将两个相反符号的圆偏振光束相加来工作的偏振转换器。使用二元衍射光学元件（DOE）生成与激光模式匹配的涡旋光束共轭对。相同的二元元件同时具有两个功能：光束整形器和光束分离器。根据对准复杂性和能量效率对两种提出的光学布置进行了比较。已经设计并制造了所讨论的 DOE。进行了自然实验，以证明矢量高阶圆柱光束的产生。
