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12 mode, WDM, MIMO-free orbital angular momentum transmission
Author(s) -
Kasper Ingerslev,
Patrick Gregg,
Michael Galili,
Francesco Da Ros,
Hao Hu,
Fangdi Bao,
Mario A. Usuga Castaneda,
Poul Kristensen,
Andrea Rubano,
Lorenzo Marrucci,
Karsten Rottwitt,
Toshio Morioka,
Siddharth Ramachandran,
Leif Katsuo Oxenløwe
Publication year - 2018
Publication title -
optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.26.020225
Subject(s) - multiplexer , optics , wavelength division multiplexing , crosstalk , angular momentum , mimo , physics , phase shift keying , multiplexing , bit error rate , computer science , telecommunications , channel (broadcasting) , wavelength , quantum mechanics
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.

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