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25 Gbit/s per User Coherent All-Optical OFDM for Tbit/s-Capable PONs

Author:
Morosi, J.  Hoxha, J.  Martelli, P.  Parolari, P.  Cincotti, G.  Shimizu, S.  Wada, N.  Boffi, P.  


Journal:
JOURNAL OF OPTICAL COMMUNICATIONS AND NETWORKING


Issue Date:
2016


Abstract(summary):

We propose and test a coherent all-optical orthogonal frequency-division multiplexing (AO-OFDM) system, based on all-optical (de) multiplexing and coherent detection, for multiterabit per second (multi-Tbit/s) passive optical networks (PONs). The proposed approach allows us to greatly increase the downstream data rate per user and extend the standard single-mode fiber reach for future long-reach applications. The compliance with a next-generation PON layout is guaranteed thanks to the exploitation of cyclic arrayed waveguide gratings. Five-user transmission with 12.5 Gbaud quadrature phase shift keying modulation per user (125 Gbit/s downstream capacity per wavelength) over a more than 40 km link has been successfully demonstrated.


Page:
190---195


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