Experimental study on the effects of turbulence induced scintillations on a practical free-space communication link at high bandwidth

Vijit Bedi; Vladimir Nikulin; Kathy-Anne Soderberg; John E. Malowicki; Peter A. Ricci; Christine A. Mathers; John W. Heinig; William F. Lipe

doi:10.1117/12.2632041

30 September 2022 Experimental study on the effects of turbulence induced scintillations on a practical free-space communication link at high bandwidth

Vijit Bedi, Vladimir Nikulin, Kathy-Anne Soderberg, John E. Malowicki, Peter A. Ricci, Christine A. Mathers, John W. Heinig, William F. Lipe

Author Affiliations +

Proceedings Volume 12237, Laser Communication and Propagation through the Atmosphere and Oceans XI; 1223705 (2022) https://doi.org/10.1117/12.2632041
Event: SPIE Optical Engineering + Applications, 2022, San Diego, California, United States

Abstract

Free-space optical communication (FSOC) holds an unmatched potential for data communications with high bandwidth and security while minimizing size, weight, and power (SWAP). However, the effects of atmospheric turbulence on an optical wave during propagation limits and degrades communication performance. Although this degradation of beam quality occurs due to many factors, but unwanted aberrations due to scattering and absorption of the propagating electromagnetic wave is typically the primary cause. In this paper, we report experimental results from a free space optical FSO communication data link. Bandwidth up to 10 Gbps at 1550 nm is correlated to 𝑐_𝑛² (refractive index structure parameter), transmission wavelength, transmit and receive parameters. For further random and data dependent analysis, the communication link's transmission and receive data eye with amplitude and time jitter decomposition is performed using multiple NRZ PRBS patterns. Additionally, with the aim of reducing SWAP and cost, the experiment is built and designed mostly using off-the-shelf long-range single mode, small factor pluggable devices.

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Vijit Bedi, Vladimir Nikulin, Kathy-Anne Soderberg, John E. Malowicki, Peter A. Ricci, Christine A. Mathers, John W. Heinig, and William F. Lipe "Experimental study on the effects of turbulence induced scintillations on a practical free-space communication link at high bandwidth", Proc. SPIE 12237, Laser Communication and Propagation through the Atmosphere and Oceans XI, 1223705 (30 September 2022); https://doi.org/10.1117/12.2632041

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