An optical code-division multiple access (OCDMA) over wavelength-division multiplexing (WDM) system could be one promising solution to the symmetric Gigabit access network with high spectral efficiency, cost effective, good flexibility and enhanced security. A cost-effective OCDMA/WDM system using a single multi-port en/decoder at an optical line terminal (OLT) and superstructured fiber Bragg grating (SSFBG) encoder/decoders at each optical network unit (ONU) in an optical network has been proposed and demonstrated. In this paper, we prepare 16-chip, 16-level phase-shifted SSFBG encoder/decoders and develop the full-asynchronous 10 Gigabit Ethernet (10 GbE) interface OCDMA prototype for the first time. Field trials of duplex, fully-asynchronous, 10 Gbps$\,\times\,$8-user DPSK-OCDMA system over 100 km using hybrid multi-port and SSFBG encoder/decoder are demonstrated.
© 2009 IEEE
Nobuyuki Kataoka, Naoya Wada, Xu Wang, Gabriella Cincotti, Akira Sakamoto, Yoshihiro Terada, Tetsuya Miyazaki, and Ken-ichi Kitayama, "Field Trial of Duplex, 10 Gbps$\,\times\,$8-User DPSK-OCDMA System Using a Single 16$\,\times\,$16 Multi-Port Encoder/Decoder and 16-Level Phase-Shifted SSFBG Encoder/Decoders," J. Lightwave Technol. 27, 299-305 (2009)