Title :
Ultrafast Phase Comparator for Phase-Locked Loop-Based Optoelectronic Clock Recovery Systems
Author :
Gómez-Agis, Fausto ; Oxenlòwe, Leif Katsuo ; Kurimura, Sunao ; Ware, Cédric ; Mulvad, Hans Christian Hansen ; Galili, Michael ; Erasme, Didier
Author_Institution :
Commun. & Electron. Dept., TELECOM ParisTech, Paris, France
fDate :
7/1/2009 12:00:00 AM
Abstract :
The authors report on a novel application of a chi(2) nonlinear optical device as an ultrafast phase comparator, an essential element that allows an optoelectronic phase-locked loop to perform clock recovery of ultrahigh-speed optical time-division multiplexed (OTDM) signals. Particular interest is devoted to a quasi-phase-matching adhered-ridge-waveguide periodically poled lithium niobate (PPLN) device, which shows a sufficient high temporal resolution to resolve a 640 Gbits OTDM signal.
Keywords :
lithium compounds; niobium compounds; nonlinear optics; optical communication equipment; optical waveguides; optoelectronic devices; phase comparators; phase locked loops; ridge waveguides; synchronisation; time division multiplexing; LiNbO3; bit rate 640 Gbit/s; nonlinear optical device; optical signal processing; optical time division multiplexing; optoelectronic clock recovery systems; periodically poled lithium niobate; quasi-phase-matching adhered-ridge-waveguide; ultrafast phase comparator; ultrahigh-speed optical time-division multiplexed signal; Clock recovery (CR); nonlinear optics; optical communication; optical phase matching; optical signal processing; optical time division multiplexing (OTDM); optoelectronic phase-locked loop (OEPLL); periodically poled lithium niobate (PPLN);
Journal_Title :
Lightwave Technology, Journal of
DOI :
10.1109/JLT.2008.2010957
