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Bringing the Visible Universe into Focus with Robo-AO
Published on: February 12, 2013
Reducing the cross-talk among different orbital angular momentum modes in turbulent atmosphere by using a focusing
Abstract:
The cross-talk among different orbital angular momentum (OAM) modes induced by the turbulent atmosphere is a challenging effect commonly occurring in OAM-based free-space optical (FSO) communication. The aim of this study is to propose a simple method to reduce the crosstalk and demonstrate its effect by analytical derivation and numerical simulation. It is found that the crosstalk is largely reduced by using a focusing mirror. Our results will be useful in free-space optical communication.
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