Methods of formation and conversion of Bessel light beams with wavefront dislocations and applications for optical information processing

V. N. Belyi; Nikolai S. Kazak; Nikolay A. Khilo; Anatol A. Ryzhevich

doi:10.1117/12.464184

30 April 2002 Methods of formation and conversion of Bessel light beams with wavefront dislocations and applications for optical information processing

V. N. Belyi, Nikolai S. Kazak, Nikolay A. Khilo, Anatol A. Ryzhevich

Author Affiliations +

Proceedings Volume 4644, Seventh International Conference on Laser and Laser-Information Technologies; (2002) https://doi.org/10.1117/12.464184
Event: Seventh International Conference on Laser and Laser Information Technologies, 2001, Vladimir, Suzdal, Russian Federation

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.

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V. N. Belyi, Nikolai S. Kazak, Nikolay A. Khilo, and Anatol A. Ryzhevich "Methods of formation and conversion of Bessel light beams with wavefront dislocations and applications for optical information processing", Proc. SPIE 4644, Seventh International Conference on Laser and Laser-Information Technologies, (30 April 2002); https://doi.org/10.1117/12.464184

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