Reliability Enhancement in FSO Communications Using FMF Assisted by Subcarrier Multiplexing.

Manuel M. Freitas,Marco A. Fernandes, Vitor D. Correia,Paulo P. Monteiro,Fernando P. Guiomar,Gil M. Fernandes

Optical Fiber Communications Conference and Exhibition（2024）

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摘要

We exploit the frequency diversity offered by digital subcarrier-multiplexing to overcome the coherent combining challenge associated with the use of FMF in FSO systems. Experimental validation at 200Gbps in an atmospheric chamber reveals reliability gains of >20% compared with an equivalent single-mode coupling system.

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关键词

Free-space Optical Communication,Reliability Enhancement,Few-mode Fiber,Subcarrier Multiplexing,Spatial Variation,Free Space,Piezoelectric,Optical Power,Multiple-input Multiple-output,Optical Signal,Digital Signal Processing,Optical Amplifier,Forward Error Correction,Receiver Side,Optical Coupling,Arbitrary Waveform Generator,Turbulent Regime,GHz Bandwidth,Equivalent Approach,Multiple Receivers,Coherent Receiver,Multiple-input Single-output,Turbulent Channel

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