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Proceedings Paper

Experimental verification of the effects of atmospheric turbulence and retro-reflection on laser beams with orbital angular momentum
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Paper Abstract

Retro-reflectors often find use in long-range laser propagation experiments. They double the propagation distance and cancel atmospheric tip/tilt alleviating the hardware requirements on the laser transceiver system. On the other hand, the effects that a retro-reflector can have on collimated or focused laser beams have not been thoroughly investigated. Additionally, for use in combination with beams carrying orbital angular momentum, which become increasingly popular in free-space optical communications, retro-reflector’s effect must also be analysed. Demodulation efficiency of a communications system based on such beams is very sensitive to the fidelity of helical wavefronts and therefore retroreflector’s effect on both amplitude and phase for collimated and focused orbital angular momentum beams should be studied.

Paper Details

Date Published: 9 October 2019
PDF: 7 pages
Proc. SPIE 11153, Environmental Effects on Light Propagation and Adaptive Systems II, 111530F (9 October 2019);
Show Author Affiliations
Raphaël Bellossi, Fraunhofer Institute of Optronics, System Technologies and Image Exploitation IOSB (Germany)
Andrew Lambert, Fraunhofer Institute of Optronics, System Technologies and Image Exploitation IOSB (Germany)
UNSW Canberra (Australia)
Szymon Gladysz, Fraunhofer Institute of Optronics, System Technologies and Image Exploitation IOSB (Germany)


Published in SPIE Proceedings Vol. 11153:
Environmental Effects on Light Propagation and Adaptive Systems II
Karin U. Stein; Szymon Gladysz, Editor(s)

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