3.4 Nonlinear signal processing and all optical logic

The ultra-fast response of processes in photonic components has triggered the interest of the scientific community in the potential of photonics for fast computation. The building block of computing is logic gates.

The group has contributed to the field by presenting concepts of all-optical logic relying on nonlinear phenomena such as cross phase modulation, four-wave mixing etc, in optical fibers and silicon based photonic waveguides. The results show ultra-fast logical operations (NAND, NOR, XOR, OR, NOT) exceeding rates of 160 Gb/s. Nonlinear signal processing has been also exploited in other computing functions such as optical differentiation, label swapping in networks, etc.



Related projects:

  • E-photon/One
  • E-photon/One+
  • BONE


Significant publications:

  • S. Mikroulis, H. Simos, E. Roditi, and D. Syvridis, "Ultrafast All-Optical AND Logic Operation Based on FWM in a Passive InGaAsP-InP Microring Resonator", IEEE Photon. Technol. Lett. 17, pp. 1878-1880, 2005.
  • S. Mikroulis, H. Simos, A. Chipouras, E. Roditi, and D. Syvridis, "40Gb/s NRZ and RZ Operation of an All-Optical AND Logic Gate Based on a Passive InGaAsP/InP Microring Resonator", IEEE J. Lightwave Technol. 24, 3, pp. 1159-1164, 2006.
  • A. Bogris, P. Velanas, D. Syvrids, “Numerical Investigation of a 160 Gb/s Reconfigurable Photonic logic gate based on Cross Phase Modulation in Fibers”, IEEE Photonics Technology Letters, vol. 19, pp. 402-404, Mar. 2007.
  • P. Velanas, A. Bogris, A. Argyris, and D. Syvridis, “ High Speed All-Optical First- and Second-order Differentiators based on Cross Phase Modulation in Fibers,” IEEE Journal of Lightwave Technology, Volume 26,  Issue 18,  Sept.15, pp. 3269 - 3276, 2008.
  • P. Velanas, A. Bogris, and D. Syvridis, “ Operation Properties of a Reconfigurable Photonic Logic Gate based on Cross Phase Modulation in Highly non-linear Fibers,” Optical Fiber Technology, Volume 15, Issue 1, pp 65-73, January 2009.