Laser beams with helical wavefront dislocations and their applications in the diagnostical and metrological systems

Tatiana I. Arsenyan; Nikolai N. Fedotov; L. S. Kornienko; Pavel V. Korolenko; E. A. Kulyagina; G. V. Petrova

doi:10.1117/12.234232

1 March 1996 Laser beams with helical wavefront dislocations and their applications in diagnostic and metrological systems

Tatiana I. Arsenyan, Nikolai N. Fedotov, L. S. Kornienko, Pavel V. Korolenko, E. A. Kulyagina, G. V. Petrova

Author Affiliations +

Proceedings Volume 2713, Fifth International Conference on Industrial Lasers and Laser Applications '95; (1996) https://doi.org/10.1117/12.234232
Event: Fifth International Conference on Industrial Laser and Laser Applications '95, 1995, Shatura, Moscow, Russian Federation

Abstract

Properties and practical applications of the light beams with helical dislocations (HD) of wavefront in metrological systems are considered on the basis of experiments with gas lasers and numerical ones. It is shown, that the super stable lasers-heterodynes with high quality of out coming radiation can be created using lasers with inner-resonator helical fields. Conditions of HD appearance in laser beams propagating through the turbulent atmosphere are determined. A method of definition of atmospheric turbulence degree based on HD number counting is suggested. The possibility of such beams application in metrological optical systems having super Raleigh spatial resolution is considered as a promising direction of their usage.

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Tatiana I. Arsenyan, Nikolai N. Fedotov, L. S. Kornienko, Pavel V. Korolenko, E. A. Kulyagina, and G. V. Petrova "Laser beams with helical wavefront dislocations and their applications in diagnostic and metrological systems", Proc. SPIE 2713, Fifth International Conference on Industrial Lasers and Laser Applications '95, (1 March 1996); https://doi.org/10.1117/12.234232

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