Pachava Srinivas, Dixit Awakash, Srinivasan B
Opt Express. 2019 Apr 29;27(9):13182-13193. doi: 10.1364/OE.27.013182.
In this paper, we explore the use of an optical correlation technique to decompose different radial as well as azimuthal order modes of Laguerre Gaussian (LG) beams. We experimentally demonstrate the decomposition of single as well as composite LG beams and compare it with simulations. We report the modal decomposition with 27 dB extinction over several radial and azimuthal orders. Finally, we show that our modal decomposition is capable of sorting mode spectrum consisting of up to 10 LG modes with an accuracy of better than 97.8%.
在本文中，我们探索使用光学相关技术来分解拉盖尔高斯（LG）光束的不同径向和角向阶模。我们通过实验证明了单模和复合LG光束的分解，并将其与模拟结果进行比较。我们报告了在多个径向和角向阶上具有27 dB消光比的模态分解。最后，我们表明我们的模态分解能够对由多达10个LG模式组成的模式光谱进行分选，分选精度优于97.8%。
