OCDMA RESEARCH

Code division multiple access (CDMA) is the access method mostly used in radio communication systems, that allows several transmitters to send information simultaneously over a single channel. During the last two decades, Photonics Lab tried to adapt this technology to optical transmission systems and networks, to enhance the data capacity over a single fiber and a single wavelength. OCDMA has the main advantage of using all-optical processing to perform networking applications, such as addressing and routing and, it is an attractive candidate for the next generation optical access systems.

Pubblications list:

  • G. Cincotti, "Full optical encoders/decoders for photonic IP routers,’’ IEEE/OSA Journal of Lightwave Technology, 22, 2, 337-342 (2004).
  • G. Cincotti, "Design of optical full encoders/decoders for code-based photonic routers,’’ IEEE/OSA Journal of Lightwave Technology, 22, 1642-1650 (2004).
  • G. Cincotti, N. Wada , K.-i. Kitayama, "Characterization of a full encoder/decoder in the AWG configuration for code-based photonic routers-Part I: modelling and design,’’ IEEE/OSA Journal of Lightwave Technology, 24, 1, 103-112 (2006).
  • N. Wada, G. Cincotti, S. Yoshima, N. Kataoka, K.-i. Kitayama, "Characterization of a full encoder/decoder in the AWG configuration for code-based photonic routers-Part II: experimental results,” IEEE/OSA Journal of Lightwave Technology, 24, 1, 113-121 (2006).
  • X. Wang, N. Wada, G. Cincotti, T. Miyazaki, K.-i. Kitayama, “Demonstration of over 128-Gb/s capacity (12-user 10.71-Gb/s/user) asynchronous OCDMA using FEC and AWG-based multiport optical encoder/decoders,” IEEE Photonics Technology Letters 18, 15, 1603-1606 (2006).
  • X. Wang, N. Wada, T. Miyazaki, G. Cincotti K.-i. Kitayama, “Field trial of 3-WDM×10-OCDMA×10.71-Gbps, asynchronous, WDM/DPSK-OCDMA using hybrid E/D without FEC and optical thresholding,” IEEE/OSA Journal of Lightwave Technology, 25, 1, 207-215 (2007).
  • G. Manzacca, X. Wang, N. Wada, G. Cincotti K.-i. Kitayama, “Comparative study of multiencoding scheme for OCDM using a single multi-port optical encoder/decoder,” IEEE Photonics Technology Letters, 19, 8, 559-561 (2007).
  • G. Manzacca, A. M. Vegni, X. Wang , N. Wada, G. Cincotti K.-i. Kitayama, "Performance analysis of a multi-port encoder/decoder in OCDMA scenario,’’ IEEE Journal Selected Topics in Quantum Electronics, special issue "Optical Code in Optical Communications and Networks, 13, 5, 1415-1421 (2007).
  • X. Wang , N. Wada, T. Miyazaki, G. Cincotti K.-i. Kitayama, "Asynchronous multiuser coherent OCDMA system with code-shift-keying and balanced detection,’’ IEEE Journal Selected Topics in Quantum Electronics, numero speciale "Optical Code in Optical Communications and Networks, 13, 5,1463-1470 (2007).
  • G. Cincotti, G. Manzacca, X. Wang, T. Miyazaki, N. Wada, K.-i. Kitayama, “Reconfigurable multi-port optical encoder/decoder with enhanced auto-correlation,” IEEE Photonics Technology Letters 20, 2, 168–170 (2008).
  • N. Kataoka, N. Wada, X. Wang, G. Cincotti, A. Sakamoto, Y. Terada, T. Miyazaki, K.-i. Kitayama, "Field trial of duplex, 10 Gbps x 8-user DPSK-OCDMA system using a single 16x16 multi-port encoder/decoder and 16-level phase-shifted SSFBG encoder/decoders,” IEEE/OSA Journal of Lightwave Technology, 27, 3, 299-305 (2009).
  • G. Cincotti, “Generalized fiber Fourier optics,” Optics Letters, 36, 12, 2321-2323 (2011).
  • N. Kataoka, G. Cincotti, N. Wada, K.-i. Kitayama, “Demonstration of asynchronous, 40Gbps x 4-user DPSK-OCDMA transmission using a multi-port encoder/decoder,” OSA Optics Express, 19, 26, B965–B970 (2011).
  • T. Kodama, N. Wada, G. Cincotti, K.-i. Kitayama, “Noise suppression using optimum filtering for N-ary PSK OCs generated by a multi-port encoder/decoder,” OSA Optics Express, 20, 9, 10320-10329 (2012).