Performance of a coherent free-space optical communications link with wavefront sensorless adaptive optics

Douglas McDonald; Max Segel; Marc Eichhorn; Szymon Gladysz

doi:10.1117/12.2573267

17 September 2020 Performance of a coherent free-space optical communications link with wavefront sensorless adaptive optics

Douglas McDonald, Max Segel, Marc Eichhorn, Szymon Gladysz

Author Affiliations +

Proceedings Volume 11532, Environmental Effects on Light Propagation and Adaptive Systems III; 115320I (2020) https://doi.org/10.1117/12.2573267
Event: SPIE Remote Sensing, 2020, Online Only

Abstract

Coherent free-space optical (FSO) communications systems present an opportunity for significantly increased data rates in wireless communications. To implement coherent FSO systems, degradation of received signals due to atmospheric propagation must be mitigated. This can be achieved by deploying adaptive optics (AO) systems at the optical receiver to reconstruct wavefronts deformed during propagation. In this work, we present the design and implementation of a coherent FSO communications system which utilizes a wavefront sensorless AO system to improve received signal quality. The performance of the communications system is quantified with and without the use of AO by measuring bit error ratio (BER) and error vector magnitude (EVM).

Conference Presentation

Citation Download Citation

Douglas McDonald, Max Segel, Marc Eichhorn, and Szymon Gladysz "Performance of a coherent free-space optical communications link with wavefront sensorless adaptive optics", Proc. SPIE 11532, Environmental Effects on Light Propagation and Adaptive Systems III, 115320I (17 September 2020); https://doi.org/10.1117/12.2573267

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