Power-efficient method for IM-DD optical transmission of multiple OFDM signals | Zendy

Frank Effenberger | Zendy; Xiang Liu | Zendy

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Power-efficient method for IM-DD optical transmission of multiple OFDM signals

Author(s) -

Frank Effenberger,

Xiang Liu

Publication year - 2015

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.23.013571

Subject(s) - orthogonal frequency division multiplexing , intensity modulation , frequency division multiplexing , modulation (music) , clipping (morphology) , transmission (telecommunications) , multiplexing , electronic engineering , computer science , optics , optical wireless , optical power , optical carrier transmission rates , optical fiber , channel (broadcasting) , wireless , physics , telecommunications , phase modulation , radio over fiber , engineering , phase noise , acoustics , laser , linguistics , philosophy

We propose a power-efficient method for transmitting multiple frequency-division multiplexed (FDM) orthogonal frequency-division multiplexing (OFDM) signals in intensity-modulation direct-detection (IM-DD) optical systems. This method is based on quadratic soft clipping in combination with odd-only channel mapping. We show, both analytically and experimentally, that the proposed approach is capable of improving the power efficiency by about 3 dB as compared to conventional FDM OFDM signals under practical bias conditions, making it a viable solution in applications such as optical fiber-wireless integrated systems where both IM-DD optical transmission and OFDM signaling are important.

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