Open AccessPrescaled phase-locked loop using phase modulation and spectral filtering and its application to clock extraction from 160-Gbit/s optical-time-division multiplexed signal
Author(s) -
Koji Igarashi,
Kazuhiro Katoh,
K. Kikuchi
Publication year - 2006
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.14.004087
Subject(s) - phase locked loop , phase modulation , optics , comparator , phase noise , phase (matter) , modulation (music) , signal (programming language) , clock recovery , phase detector , physics , materials science , clock signal , computer science , electronic circuit , voltage , quantum mechanics , acoustics , programming language
We propose a prescaled phase-locked loop (PLL) using a simple optoelectronic phase comparator based on phase modulation and spectral filtering. Our phase comparator has a high dynamic range of over 9 dB and a high sensitivity comparable to that using an electrical mixer. A PLL composed of our phase comparator enables to extract a low-noise 10-GHz clock from a 160-Gbit/s optical-time-division multiplexed (OTDM) signal.