Robust coherent FSO using ultrashort pulses

被引:0
|
作者
Wohlgemuth, Eyal [1 ]
Lesnik, Roi [2 ]
Cohen, Roi [2 ]
Attia, Ido [1 ,2 ]
Emaury, Florian [3 ]
Michel, Thibault [4 ]
Jacques-Sermet, Olivier [4 ]
Jian, Pu [4 ]
Vered, Ran [5 ]
Sadot, Dan [1 ,2 ]
机构
[1] CyberRidge Ltd, Azrieli Sarona Towe,121 Menachem Begin Rd, Tel Aviv, Israel
[2] Ben Gurion Univ Negev, Beer Sheva, Israel
[3] Menhir Photon AG, Industriestr 42, CH-8152 Opfikon, Switzerland
[4] Cailabs 1 Rue Nicolas Joseph Cugnot, F-35000 Rennes, France
[5] Civan Adv Technol Ltd, 64 Kanfei Nesharim St, IL-9546455 Jerusalem, Israel
关键词
Free-space optics; feeder links; fading channels; ultra-short pulses; coherent detection;
D O I
10.1109/ICTON62926.2024.10647266
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
In free-space optical (FSO) feeder links, atmospheric turbulence causes fluctuations that significantly degrade link performance. We present a novel communication technique aimed at mitigating turbulence-induced intensity fluctuations and phase distortions, while enabling the use of dual-polarization high-order coherent modulation schemes. The technique involves transmitting ultra-short pulses through a turbulent atmosphere using a detection scheme known as a dynamic coherent all-optical matched filter. Simulation and experiments have demonstrated proof of concept, showing a dramatic improvement of more than 8.5 dB in the link budget.
引用
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页数:4
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