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Grating-based optical scheme for the universal generation of inhomogeneously polarized laser beams

机译:通用产生不均匀偏振激光束的基于光栅的光学方案

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摘要

We propose and analyze a new optical system to transform linearly polarized laser modes into axially symmetric (radial or azimuthal) modes that show more promise in various applications, as well as generating various inhomogeneously polarized configurations. The system is based on the coherent composition of modal beams with phase diffraction gratings that allow the intermode phase shift to be varied without the need for auxiliary components. What makes the system simple and universal is the use of diffractive optical elements to generate required mode patterns with specific space orientation along with the simultaneous generation of different beams with different transverse mode content, all of which can subsequently be combined.
机译:我们提出并分析了一种新的光学系统,它将线性偏振激光模式转换为轴对称(径向或方位角)模式,这些模式在各种应用中显示出更多的希望,并生成各种非均匀偏振配置。该系统基于具有相衍射光栅的模态光束的相干成分,该相衍射光栅允许模间相移发生变化,而无需辅助组件。使系统简单和通用的原因是使用衍射光学元件来生成具有特定空间方向的所需模式图案,并同时生成具有不同横向模式内容的不同光束,随后可以将所有这些光束组合在一起。

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