Multiplexing free-space optical signals using superimposed collinear orbital angular momentum states

As a proof of concept, we experimentally demonstrate multiplexing of free-space optical signals in multiple channels labeled with different states of orbital angular momentum. The multiplexing process is carried out by a dynamic liquid-crystal spatial light modulator, while the phase function is cal...

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Published in:Applied optics (2004) 2007-07, Vol.46 (21), p.4680-4685
Main Authors: Lin, J, Yuan, X-C, Tao, S H, Burge, R E
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Yuan, X-C
Tao, S H
Burge, R E
description As a proof of concept, we experimentally demonstrate multiplexing of free-space optical signals in multiple channels labeled with different states of orbital angular momentum. The multiplexing process is carried out by a dynamic liquid-crystal spatial light modulator, while the phase function is calculated by an iterative algorithm. A binary amplitude computer-generated hologram serves as a demultiplexer.
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title Multiplexing free-space optical signals using superimposed collinear orbital angular momentum states
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