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Experimental and Theoretical Investigations of Intensity-Modulation and Direct-Detection Optical Fast-OFDM Over MMF-Links

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6 Author(s)
Giacoumidis, E. ; High-Speed Networks & Opt. Commun. (NOC) Group, Athens Inf. Technol. (AIT) Center, Athens, Greece ; Ibrahim, S.K. ; Zhao, J. ; Tang, J.M.
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We demonstrate the first experimental implementation of a 3.9-Gb/s differential binary phase-shift keying (DBPSK)-based double sideband (DSB) optical fast orthogonal frequency-division-multiplexing (FOFDM) system with a reduced subcarrier spacing equal to half the symbol rate over 300 m of multimode fiber (MMF) using intensity-modulation and direct-detection (IM/DD). The required received optical power at a bit-error rate (BER) of 10-3 was measured to be ~-14.2 dBm with a receiver sensitivity penalty of only ~0.2 dB when compared to the back-to-back case. Experimental results agree very well with the theoretical predictions.

Published in:

Photonics Technology Letters, IEEE  (Volume:24 ,  Issue: 1 )