On-the-Fly All-Optical Contention Resolution for NRZ and RZ Data Formats Using Packet Envelope Detection and Integrated Optical Switches

Author

Stampoulidis, L. ; Kehayas, E. ; Apostolopoulos, D. ; Bakopoulos, P. ; Vyrsokinos, K. ; Avramopoulos, H.

Author_Institution

Dept. of Electr. & Comput. Eng., Nat. Tech. Univ. of Athens

Volume

19

Issue

8

fYear

2007

fDate

4/15/2007 12:00:00 AM

Firstpage

538

Lastpage

540

Abstract

We present a packet-by-packet contention resolution scheme that combines packet detection, optical space switching, and wavelength conversion performed in the optical domain by integrated optical switches. The packet detection circuit provides the control signals required to deflect and wavelength-convert the contending packets so that all the packets are forwarded to the same output without any collision or packet droppings. We demonstrate the compatibility of the scheme with both nonreturn-to-zero (NRZ) and return-to-zero (RZ) modulation formats by recording error-free operation for 10-Gb/s NRZ and 40-Gb/s RZ packet-mode traffic

Keywords

integrated optics; optical fibre communication; optical information processing; optical modulation; optical switches; optical wavelength conversion; telecommunication traffic; 10 Gbit/s; 40 Gbit/s; all-optical contention resolution; error-free operation; integrated optical switches; modulation formats; nonreturn-to-zero data format; on-the-fly contention resolution; optical space switching; packet detection circuit; packet envelope detection; packet-by-packet contention resolution; packet-mode traffic; return-to-zero data format; wavelength conversion; Circuits; Envelope detectors; Integrated optics; Optical detectors; Optical packet switching; Optical signal processing; Optical switches; Optical wavelength conversion; Road accidents; Signal resolution; All-optical signal processing; contention resolution; deflection routing; optical gates; optical label swapping; optical packet switching; photonic integration; semiconductor optical amplifier (SOA); wavelength conversion;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/LPT.2007.893892

Filename

4130459