Vortex beam generation based on a fiber array combining and propagation through a turbulent atmosphere

V. P. Aksenov; V. V. Dudorov; V. V. Kolosov

doi:10.1117/12.2237604

19 September 2016 Vortex beam generation based on a fiber array combining and propagation through a turbulent atmosphere

V. P. Aksenov, V. V. Dudorov, V. V. Kolosov

Author Affiliations +

Proceedings Volume 9979, Laser Communication and Propagation through the Atmosphere and Oceans V; 997908 (2016) https://doi.org/10.1117/12.2237604
Event: SPIE Optical Engineering + Applications, 2016, San Diego, California, United States

Abstract

We suggest a technique for generation of optical vortex beams with a variable orbital angular momentum based on a fiber laser array. The technique uses the phase control of each single subbeam. Requirements for the number of subbeams and the spatial arrangement for the vortex beam generation are determined. The propagation dynamics of a vortex beam synthesized is compared with that of a continuous Laguerre–Gaussian beam in free space and in a turbulent atmosphere. Spectral properties of a beam synthesized, which is represented as a superposition of different azimuth modes, are determined during its free-space propagation. It is shown that energy and statistical parameters coincide for synthesized and continuous vortex beams when propagating through a turbulent medium. Probability density functions of the beam intensity fluctuations are well approximated to a gamma distribution in the cases where the scintillation index is lower than unity independently of the beam type and observation point position relative to the propagation axis.

Conference Presentation

Citation Download Citation

V. P. Aksenov, V. V. Dudorov, and V. V. Kolosov "Vortex beam generation based on a fiber array combining and propagation through a turbulent atmosphere", Proc. SPIE 9979, Laser Communication and Propagation through the Atmosphere and Oceans V, 997908 (19 September 2016); https://doi.org/10.1117/12.2237604

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available