IEICE Electronics Express
Online ISSN : 1349-2543
ISSN-L : 1349-2543
A wide range, over 9.6ns, skew compensation LSI for a flexible optical access system
Yoshihito SakaiHideaki KimuraYusuke OhtomoMakoto Tsubokawa
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2008 Volume 5 Issue 4 Pages 157-162


In order to realize flexible bandwidth allocation in access networks with bit rates of 10Gb/s or more, transmitting data by parallel streams with different wavelengths is an attractive approach. In such systems, the timing skew induced by fiber dispersion is the critical problem. This paper proposes a skew compensation LSI for an optical access system based on power splitter based wavelength division multiplexing passive optical network (PS-WDM-PON). The LSI can compensate timing skew of more than 9.6ns with 82ps resolution; experiments show that transmission distance of 24km are possible if the bit rate of each wavelength is 2.5Gbit/s and all wavelengths lie within 20nm.

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© 2008 by The Institute of Electronics, Information and Communication Engineers
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