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Spectral coded phase bipolar OCDMA technological implementation thanks to low index modulation filters

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Abstract

Optical code division multiple access (OCDMA) systems are attracting an increasing interest in optical fiber communication. This is due to the various advantages that they provide; in particular for the simultaneous improvement capacity and flexible channel allocation as well as fastest data speeds and increased security. In this paper, the authors present an experimental demonstration of bipolar optical CDMA System with phase shift using E-beam technique on \(H_xLi_{1-x}NbO_3\) transmission channel realized by proton exchange. The idea of the proposed system is to evaluate the result of eight cascaded Bragg filters in very narrow band. The coded sequence corresponds to that of Hadamard \(H_8(7)\), represented by the bits ’1 1 −1 −1 −1 −1 1 1’, and phase shift have been identified on the coder spectral response whilst increasing the multiplexing capacity in terms of the total number of users and the data.

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Acknowledgements

The authors wish to acknowledge all personnel of the MIMINTO technology centre of the Institut FEMTO-ST, Besançon, France.

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Authors and Affiliations

  1. Department of Electronics, Informatics and Telecommunications, École Nationale des Sciences Appliquées d’Oujda (ENSAO), University of Mohamed Premier, Oujda, Morocco

    Kamal Ghoumid, Amina Ghadban & Sokaina Boukricha

  2. E.T.S. Informatica y Automatica UNE, Madrid, Spain

    El Miloud Ar-reyouchi

  3. FEMTO-ST Institut, Department LOPMD, Franche-Comté University, 16 Route de Gray, 25030, Besançon, France

    Reda Yahiaoui & Marina Raschetti

  4. Department of Telecommunications, L.C.P.T.S, USTHB, Alger, Algeria

    Slimane Mekaoui

  5. Department of Physics and Electronics, SAMOVAR Mines-Telecom/Telecom SudParis, Evry, France

    Catherine Lepers

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  1. Kamal Ghoumid
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  2. Amina Ghadban
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  3. Sokaina Boukricha
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Correspondence to Kamal Ghoumid.

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Ghoumid, K., Ghadban, A., Boukricha, S. et al. Spectral coded phase bipolar OCDMA technological implementation thanks to low index modulation filters. Telecommun Syst 73, 433–441 (2020). https://doi.org/10.1007/s11235-019-00610-7

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  • DOI: https://doi.org/10.1007/s11235-019-00610-7

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