10-GHz clock recovery using an optoelectronic phase-locked loop based on three-wave mixing in periodically poled lithium niobate
- 5 July 2006
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Photonics Technology Letters
- Vol. 18 (13) , 1460-1462
- https://doi.org/10.1109/LPT.2006.877586
Abstract
Clock recovery is a critical function of any digital communications system. To replace the classical electronic phase-locked loops (PLLs) at higher bit rates, several all-optical or optoelectronic clock recovery methods are being studied. This letter presents an optoelectronic PLL where three-wave mixing in a periodically poled lithium niobate (PPLN) device provides the phase comparator. Since PPLN is passive, it generates no amplified spontaneous emission noise; also, the error signal is in the visible (763 nm), therefore easily separated from infrared input signals. Clock recovery is performed on a 10-GHz sinusoidal optical signal. Being based on ultrafast nonlinear effects, this scheme should be able to reach still higher bit rates, on the order of several hundred gigahertz. Also, subclock extraction (e.g., 40-to-10 GHz) should be possible without modifications.Keywords
This publication has 5 references indexed in Scilit:
- 30 GHz sub-clock recovery using an opto-electronic phase-locked loop based on four-wave mixing in a semiconductor optical amplifierPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2006
- 10 GHz clock recovery using an opto-electronic phase-locked loop based on three-wave mixing in periodically-poled lithium niobatePublished by Institute of Electrical and Electronics Engineers (IEEE) ,2006
- 320 Gbit/s clock recovery with electro-optical PLL using a bidirectionally operated electroabsorption modulator as phase comparatorPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2005
- Ultrahigh-speed clock recovery with phase lock loop based on four-wave mixing in a traveling-wave laser diode amplifierJournal of Lightwave Technology, 1996
- Characterization of phase and frequency instabilities in precision frequency sources: Fifteen years of progressProceedings of the IEEE, 1978