Title :
Clock and data recovery circuit for 10-Gb/s asynchronous optical packets
Author :
Kanellos, G.T. ; Stampoulidis, L. ; Pleros, N. ; Houbavlis, T. ; Tsiokos, D. ; Kehayas, E. ; Avramopoulos, H. ; Guekos, G.
Author_Institution :
Dept. of Electr. & Comput. Eng., Nat. Tech. Univ. of Athens, Greece
Abstract :
We demonstrate an all-optical clock and data recovery circuit for short asynchronous data packets at 10-Gb/s line rate. The technique employs a Fabry-Perot filter and a SOA-based ultrafast nonlinear interferometer (UNI) to generate the local packet clock, followed by a second UNI gate to act as decision element, performing a logical AND operation between the extracted clocks and the incoming data packets. The circuit can handle short packets arriving at time intervals as short as 1.5 ns and arbitrary phase alignment.
Keywords :
high-speed optical techniques; interference filters; light interferometers; nonlinear optics; optical logic; optical switches; packet switching; semiconductor optical amplifiers; synchronisation; timing jitter; 1.5 ns; 10 Gbit/s; Fabry-Perot filter; SOA-based ultrafast nonlinear interferometer; all-optical CDR module; all-optical clock recovery circuit; asynchronous optical packets; data recovery circuit; decision element; extracted clocks; incoming data packets; local packet clock; logical AND operation; optical packet switching; phase alignment; semiconductor optical amplifier; short asynchronous data packets; short packets; Circuits; Clocks; Data mining; Fiber nonlinear optics; Nonlinear optics; Optical filters; Optical interferometry; Optical packet switching; Synchronization; Ultrafast optics;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2003.818647
