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Opt Express. 2011 Nov 21;19(24):24627-37. doi: 10.1364/OE.19.024627.

WDM-Coherent OCDMA over one single device based on short chip Super Structured Fiber Bragg Gratings.

Author information

  • 1Institute of Telecommunications and Multimedia Applications (iTEAM), Universidad Politécnica de Valencia, Camino de Vera S/N, 46021 Valencia- Spain. walamoc@iteam.upv.es


We theoretically propose and demonstrate experimentally a Coherent Direct Sequence OCDMA en/decoder for multi-channel WDM operation based on a single device. It presents a broadband spectral envelope and a periodic spectral pattern that can be employed for en/decoding multiple sub-bands simultaneously. Multi-channel operation is verified experimentally by means of Multi-Band Super Structured Fiber Bragg Gratings with binary phase encoded chips fabricated with 1mm inter-chip separation that provides 4x100 GHz ITU sub-band separation at 1.25 Gbps. The WDM-OCDMA system verification was carried out employing simultaneous encoding of four adjacent sub-bands and two different OCDMA codes.

© 2011 Optical Society of America

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