Abstract
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
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