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10 Gbit/s multimode fiber link using power-efficient orthogonal-frequency-division

Summary: 10 Gbit/s multimode fiber link using power-
efficient orthogonal-frequency-division
Arthur James Lowery and Jean Armstrong
Department of Electrical & Computer Systems Engineering,
Monash University, Clayton, 3800, Australia
Abstract: 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 inter-
modal dispersion in a 300-m multimode fiber that cannot support NRZ.
2005 Optical Society of America
OCIS codes: (060.4080) Modulation; (060.4510) Optical communications
References and links


Source: Armstrong, Jean - Department of Electrical and Computer Systems Engineering, Monash University


Collections: Engineering