Application of orbital angular momentum to simultaneous determination of tilt and lateral displacement of a misaligned laser beam
Application of orbital angular momentum to simultaneous determination of tilt and lateral displacement of a misaligned laser beam
复制标题
应用轨道角动量同时测定未对准激光束的倾斜和横向位移
DOI：
10.1364/josaa.27.002337
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发表时间：
2010-10-01
影响因子：
1.9
通讯作者：
Dainty, J. C.
中科院分区：
文献类型：
--
作者：
Lin, J.;Yuan, X. -C.;Dainty, J. C.
我们分析了倾斜和横向位移对激光束轨道角动量谱的综合影响。我们的理论解释了在失调影响下光谱的对称性和特性。我们运用理论建立了一个可靠和有效的方法来确定和随后消除倾斜和侧向位移。提出了一种利用拉盖尔-高斯模式获得轨道角动量谱的改进方法。最后，通过数值实验对该方法进行了验证。(C) 2010年美国光学学会
We present an analysis of the combined effects of tilt and lateral displacement on the orbital angular momentum spectrum of a laser beam. Our theory explains the symmetries and properties of the spectrum under the influence of misalignments. We apply the theory to establish a reliable and efficient method for determining and subsequently eliminating tilt and lateral displacement. An improved technique for obtaining the orbital angular momentum spectrum employing Laguerre-Gaussian modes is proposed. Finally, a numerical experiment is carried out to verify the method. (C) 2010 Optical Society of America