Demonstration of over 128-Gb/s-capacity (12 user$, times, $10.71-Gb/s/user) asynchronous OCDMA using FEC and AWG-based multiport optical encoder/decoder

Title : Demonstration of over 128-Gb/s-capacity (12 user$, times, $10.71-Gb/s/user)Asynchronous OCDMA using FEC and AWG-based multiport optical encoder/decoder
Authors : X. Wang, N. Wada, G. Cincotti, T. Miyazaki and K. Kitayama
Journal : IEEE Photonic Technol. Lett., vol.18, No.15, pp.1041-1135, 2006.
Abstract : For the first time, an arrayed-waveguide-grating(AWG)-based multiport optical encoder/decoder(E/D) and forward-error -correction(FEC)technique are applied in an optical code-division mutiple-access(OCDMA)system. The AWG-based OCDMA E/D with high power contrast ratio between auto-/cross-correlation can significantly supress the interference noises in an asynchronous OCDMA system without using ultralong optical codes and optical thresholder. A 12-user 10.71-Gb/s asynchronous OCDMA experiment has been successfully demonstrated to transmit ITU-T G.709 OTN frames including FEC.