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Journal Articles Optics Communications Year : 2014

On the Fly All-Optical Packet Switching Using Hybrid WDM/OCDMA Labeling

Houssem Brahmi
  • Function : Author
G. Giannoulis
  • Function : Author
Mourad Menif
  • Function : Author
D. Katopodis
  • Function : Author
D. Kalavrouziotis
  • Function : Author
Christos Kouloumentas
  • Function : Author
Panos Groumas
  • Function : Author
Giannis Kanakis
  • Function : Author
Christos Stamatiadis
  • Function : Author
H. Avramopoulos
  • Function : Author


We introduce a novel design of an all-optical packet routing node that allows for the selection and forwarding of optical packets based on the routing information contained in hybrid wavelength division multiplexing/optical code division multiple access (WDM/OCDMA) labels. A stripping paradigm of optical code-label is adopted. The router is built around an optical-code gate that consists in an optical flip–flop controlled by two fiber Bragg grating correlators and is combined with a Mach–Zehnder interferometer (MZI)-based forwarding gate. We experimentally verify the proof-of-principle operation of the proposed self-routing node under NRZ and OCDMA packet traffic conditions. The successful switching of elastic NRZ payload at 40 Gb/s controlled by DS-OCDMA coded labels and the forwarding operation of encoded data using EQC codes are presented. Proper auto-correlation functions are obtained with higher than 8.1 dB contrast ratio, suitable to efficiently trigger the latching device with a contrast ratio of 11.6 dB and switching times below 3.8 ns. Error-free operation is achieved with 1.5 dB penalty for 40 Gb/s NRZ data and with 2.1 dB penalty for DS-OCDMA packets. The scheme can further be applied to large-scale optical packet switching networks by exploiting efficient optical coders allocated at different WDM channels.
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Dates and versions

hal-02286276 , version 1 (13-09-2019)


  • HAL Id : hal-02286276 , version 1


Houssem Brahmi, G. Giannoulis, Mourad Menif, D. Katopodis, D. Kalavrouziotis, et al.. On the Fly All-Optical Packet Switching Using Hybrid WDM/OCDMA Labeling. Optics Communications, 2014, 312, pp.175-184. ⟨hal-02286276⟩
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