Summary
IEICE Information and Communication Technology Forum
2014
Session Number:ELECT1
Session:
Number:ELECT1-4
Developments in clock and data recovery circuits for passive optical networks
Guy Torfs,
pp.-
Publication Date:2014-08-10
Online ISSN:2188-5079
Summary:
The demand for higher bandwidth capacity in telecommunication networks is growing continuously, but scaling up the frequency directly has a severe impact on the receiver circuit complexity and, hence, power consumption. Furthermore, although passive optical networks (PONs) are considered as a cost effective solution, further increasing the data-rate is limited by optical signal to noise ratio (OSNR) as dispersion reduces the signal quality. Traditional methods such as stacking wavelengths at lower bit-rates, increase the receiver complexity and cost. On the other hand, when tackling the problem at an architectural level, new opportunities arise.