Superposition of helical beams by using a Michelson interferometer.
Superposition of helical beams by using a Michelson interferometer.
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DOI：
10.1364/oe.18.000072
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发表时间：
2010-01
期刊：
影响因子：
3.8
通讯作者：
Chunqing Gao;Xiaoqing Qi;Yi-dong Liu;H. Weber
中科院分区：
文献类型：
--
作者：
Chunqing Gao;Xiaoqing Qi;Yi-dong Liu;H. Weber
Orbital angular momentum (OAM) of a helical beam is of great interests in the high density optical communication due to its infinite number of eigen-states. In this paper, an experimental setup is realized to the information encoding and decoding on the OAM eigen-states. A hologram designed by the iterative method is used to generate the helical beams, and a Michelson interferometer with two Porro prisms is used for the superposition of two helical beams. The experimental results of the collinear superposition of helical beams and their OAM eigen-states detection are presented.
