Title :
All-optical packet address and payload separation
Author :
Bintjas, C. ; Pleros, N. ; Yiannopoulos, K. ; Theophilopoulos, G. ; Kalyvas, M. ; Avramopoulos, H. ; Guekos, G.
Author_Institution :
Dept. of Electr. & Comput. Eng., Nat. Tech. Univ. of Athens, Greece
Abstract :
An all-optical address and data separation scheme is presented for short 10-Gb/s packets. The technique uses a novel packet clock recovery circuit that consists of a Fabry-Perot filter and a ultrafast nonlinear interferometer (UNI) gate to generate a local packet clock. A second cascaded UNI gate is used to separate the header and the payload, performing a simple AND operation between the packet and its self-derived clock. The proposed technique requires a small number of bits as guard band and this number is independent of the line rate.
Keywords :
clocks; light interferometers; optical communication equipment; optical filters; packet switching; semiconductor optical amplifiers; telecommunication signalling; 10 Gbit/s; AND operation; Fabry-Perot filter; all-optical packet address; all-optical routing; data separation scheme; guard band; header; line rate; local packet clock; packet clock recovery circuit; payload separation; second cascaded UNI gate; self-derived clock; ultrafast nonlinear interferometer; Circuits; Clocks; High speed optical techniques; Nonlinear optics; Optical filters; Optical interferometry; Optical packet switching; Optical signal processing; Payloads; Ultrafast optics;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2002.804654
