Abstract
The use of standard 1-mm core-diameter step-index plastic optical fiber
(SI-POF) has so far been mainly limited to distances of up to 100 m and bit-rates
in the order of 100 Mbit/s. By use of digital signal processing, transmission
performance of such optical links can be improved. Among the different technical
solutions proposed, a promising one is based on the use of discrete multitone
(DMT) modulation, directly applied to intensity-modulated, direct detection
(IM/DD) SI-POF links. This paper presents an overview of DMT over SI-POF and
demonstrates how DMT can be used to improve transmission rate in such IM/DD
systems. The achievable capacity of an SI-POF channel is first analyzed theoretically
and then validated by experimental results. Additionally, first experimental
demonstrations of a real-time DMT over SI-POF system are presented and discussed.
© 2009 IEEE
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