Optical implementation of the vortex information channel

Details Optical implementation of the vortex information channel Optical implementation of the vortex information channel

Sep 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007njph....9..328c&link_type=abstract

New Journal of Physics, Volume 9, Issue 9, pp. 328 (2007).

Physics

14

Scientific paper

Recently, composed vortex fields generated by means of a spatial light modulator working in a dynamical regime have been examined as prospective information carriers. In this paper, an advanced optical set-up utilizing vortices for transfer of information is proposed and experimentally verified. Its operation is based on a sophisticated design of phase-only masks enabling information encoding and decoding. In the proposed vortex communication channel, the photolithographically prepared masks are used for generation of a composed vortex field carrying information. Dynamics of information encoding and decoding is achieved by switching of an array of light sources illuminating the phase masks.

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