Title :
Demonstration of over 128-gb/s-capacity (12-User/spl times/10.71-gb/s/user) asynchronous OCDMA using FEC and AWG-based multiport optical encoder/decoders
Author :
Wang, Xu ; Wada, Naoya ; Cincotti, Gabriella ; Miyazaki, Tetsuya ; Kitayama, Ken-ichi
Author_Institution :
Nat. Inst. of Inf. & Commun. Technol., Tokyo
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 multiple-access (OCDMA) system. The AWG-based OCDMA E/D with high power contrast ratio between auto-/cross-correlation can significantly suppress 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
Keywords :
arrayed waveguide gratings; code division multiple access; decoding; encoding; forward error correction; optical communication equipment; optical fibre communication; 10.71 Gbit/s; 128 Gbit/s; AWG; FEC; arrayed-waveguide-grating; asynchronous OCDMA; forward-error-correction; interference noise; multiport optical encoder/decoder; optical code-division multiple-access; optical codes; optical thresholder; Active noise reduction; Decoding; Interference suppression; Multiaccess communication; Multiple access interference; Optical arrays; Optical noise; Optical waveguides; Timing; Working environment noise; Arrayed waveguide grating (AWG); beat noise; fiber-optics communication; forward-error correction (FEC); multiple access interference (MAI); optical code-division multiple-access (OCDMA);
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2006.879594
