Atmospheric turbulence effects on the performance of a free space optical link employing orbital angular momentum multiplexing

Yongxiong Ren, Hao Huang, Guodong Xie, Nisar Ahmed, Yan Yan, Baris I. Erkmen, Nivedita Chandrasekaran, Martin P.J. Lavery, Nicholas K. Steinhoff, Moshe Tur, Samuel Dolinar, Mark Neifeld, Miles J. Padgett, Robert W. Boyd, Jeffrey H. Shapiro, Alan E. Willner

Research output: Contribution to journalArticle

130 Scopus citations

Abstract

We experimentally investigate the performance of an orbital angular momentum (OAM) multiplexed free space optical (FSO) communication link through emulated atmospheric turbulence. The turbulence effects on the crosstalk and system power penalty of the FSO link are characterized. The experimental results show that the power of the transmitted OAM mode will tend to spread uniformly onto the neighboring mode in medium-to-strong turbulence, resulting in severe crosstalk at the receiver. The power penalty is found to exceed 10 dB in a weak-to-medium turbulence condition due to the turbulence-induced crosstalk and power fluctuation of the received signal.

Original languageEnglish (US)
Pages (from-to)4062-4065
Number of pages4
JournalOptics letters
Volume38
Issue number20
DOIs
StatePublished - Oct 15 2013

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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    Ren, Y., Huang, H., Xie, G., Ahmed, N., Yan, Y., Erkmen, B. I., Chandrasekaran, N., Lavery, M. P. J., Steinhoff, N. K., Tur, M., Dolinar, S., Neifeld, M., Padgett, M. J., Boyd, R. W., Shapiro, J. H., & Willner, A. E. (2013). Atmospheric turbulence effects on the performance of a free space optical link employing orbital angular momentum multiplexing. Optics letters, 38(20), 4062-4065. https://doi.org/10.1364/OL.38.004062