12 mode, WDM, MIMO-free orbital angular momentum transmission

Simultaneous MIMO-free transmission of 12 orbital angular momentum (OAM) modes over a 1.2 km air-core fiber is demonstrated. WDM compatibility of the system is shown by using 60, 25 GHz spaced WDM channels with 10 GBaud QPSK signals. System performance is evaluated by measuring bit error rates, whic...

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Veröffentlicht in:	Optics express 2018-08, Vol.26 (16), p.20225-20232
Hauptverfasser:	Ingerslev, Kasper, Gregg, Patrick, Galili, Michael, Da Ros, Francesco, Hu, Hao, Bao, Fangdi, Usuga Castaneda, Mario A, Kristensen, Poul, Rubano, Andrea, Marrucci, Lorenzo, Rottwitt, Karsten, Morioka, Toshio, Ramachandran, Siddharth, Oxenløwe, Leif Katsuo
Format:	Artikel
Sprache:	eng
Online-Zugang:	Volltext
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Zusammenfassung:	Simultaneous MIMO-free transmission of 12 orbital angular momentum (OAM) modes over a 1.2 km air-core fiber is demonstrated. WDM compatibility of the system is shown by using 60, 25 GHz spaced WDM channels with 10 GBaud QPSK signals. System performance is evaluated by measuring bit error rates, which are found to be below the soft FEC limit, and limited by inter-modal crosstalk. The crosstalk in the system is analyzed, and it is concluded that it can be significantly reduced with an improved multiplexer and de-multiplexer.
ISSN:	1094-4087 1094-4087
DOI:	10.1364/OE.26.020225