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Proceedings Paper

Methods of formation and conversion of Bessel light beams with wavefront dislocations and applications for optical information processing
Author(s): V. N. Belyi; Nikolai S. Kazak; Nikolay A. Khilo; Anatol A. Ryzhevich
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Paper Abstract

New methods for production of pseudo-nondiffracting Bessel light beams with phase singularities of different topological charge have been developed and proved experimentally. It is found out that nonlinear-optical processes of frequency doubling and sum-frequency generation allow to control formation and annihilation of dislocations. The possibility of realization of arithmetic operations using this principle is proved. When Gaussian beam interferes with M-order Bessel beam having M-order dislocation, the dislocation disintegrates on M parallel quasi-nondiffracting beams packed compactly. Rotating of optical beams aggregate on required angle takes place when phase difference between interfering fields is modulated. New principle of optical inter-connections is proposed on this base.

Paper Details

Date Published: 30 April 2002
PDF: 10 pages
Proc. SPIE 4644, Seventh International Conference on Laser and Laser-Information Technologies, (30 April 2002); doi: 10.1117/12.464184
Show Author Affiliations
V. N. Belyi, Institute of Physics (Belarus)
Nikolai S. Kazak, Institute of Physics (Belarus)
Nikolay A. Khilo, Division for Optical Problems in Information Technologies/NAS (Belarus)
Anatol A. Ryzhevich, Institute of Physics (Belarus)


Published in SPIE Proceedings Vol. 4644:
Seventh International Conference on Laser and Laser-Information Technologies

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