Open Access10Gbit/s Multimode Fiber Link using Power-Efficient Orthogonal-Frequency-Division Multiplexing
Author(s) -
Arthur J. Lowery,
Jean Armstrong
Publication year - 2005
Publication title -
optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/opex.13.010003
Subject(s) - multi mode optical fiber , orthogonal frequency division multiplexing , optics , multiplexing , optical power , dispersion shifted fiber , dispersion (optics) , optical fiber , electronic engineering , computer science , materials science , fiber optic sensor , physics , telecommunications , engineering , laser , channel (broadcasting)
Orthogonal Frequency Division Multiplexing (OFDM) can provide electronic dispersion compensation of optical paths. However, it requires a high bias to convert bipolar electrical signals to unipolar optical signals, so is inefficient in optical power for a given electrical signal to noise ratio. We present a novel method of transmitting OFDM signals over multimode fibers that increases electrical SNR by 7 dB for a given optical power. Using simulations, we show a 1.8 dB sensitivity benefit over 10 Gbit/s NRZ (Non-Return to Zero) and demonstrate compensation of intermodal dispersion in a 300-m multimode fiber that cannot support NRZ.