Experimental demonstration of a cost-effective bit rate variable IM/DD optical OFDM with reduced guard band | Zendy

Michela Svaluto Moreolo | Zendy; Josep M. Fàbrega | Zendy; Fco. Javier Vílchez | Zendy; Laia Nadal | Zendy; Gabriel Junyent | Zendy

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Experimental demonstration of a cost-effective bit rate variable IM/DD optical OFDM with reduced guard band

Author(s) -

Michela Svaluto Moreolo,

Josep M. Fàbrega,

Fco. Javier Vílchez,

Laia Nadal,

Gabriel Junyent

Publication year - 2012

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.20.00b159

Subject(s) - bit error rate , orthogonal frequency division multiplexing , computer science , guard interval , electronic engineering , fast fourier transform , optics , phase shift keying , digital signal processing , transceiver , bandwidth (computing) , signal processing , physics , telecommunications , computer hardware , cmos , algorithm , engineering , channel (broadcasting)

We experimentally demonstrate an intensity modulated and direct detection optical OFDM with variable bit rate from 5 Gb/s to 9 Gb/s using BPSK format. A fast processing based on the Hartley transform is performed with low complexity DSP, achieving the same performance as 4QAM FFT-based processing. Using the same bandwidth occupancy as required for 5 Gb/s, the bit rate can be increased up to 80% and transmitted over 25 km SSMF, by reducing the guard band and adopting an optimized transceiver design with additional overhead, including half-length training symbols and cyclic extension.

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