Abstract

This paper demonstrates a high-performance optical-code-division-multiple-access (O-CDMA) network testbed using the spectral phase encoded time spreading (SPECTS) method. Through additional time and polarization multiplexing, a total of 32 10-Gb/s users are supported while sharing eight O-CDMA spreading codes. User detection is achieved with time gating and nonlinear thresholding to suppress the multiaccess interference of other users. Incorporation of forward error correction successfully reduces the performance loss imposed by coherent beat interference, resulting in error-free performance (BER<10^-11), significant per-user power penalty reduction, and the elimination of a bit-error-rate noise floor. The testbed also applies bandwidth suppression within the encoders and decoders, yielding a 52% increase in spectral efficiency.

© 2007 IEEE

Single integrated device for optical CDMA code processing in dual-code environment

Yue-Kai Huang, Ivan Glesk, Christoph M. Greiner, Dmitri Iazikov, Thomas W. Mossberg, Ting Wang, and Paul R. Prucnal
Opt. Express 15(12) 7327-7334 (2007)

Design of a Hybrid Multirate Asynchronous O-CDMA System: Performance, Spectral Efficiency, and Throughput Analyses

Han-Chun Chen, Min-Kuan Chang, Guu-Chang Yang, and Wing C. Kwong
J. Opt. Commun. Netw. 7(11) 1034-1048 (2015)

Bandwidth efficient bidirectional 5 Gb/s overlapped-SCM WDM PON with electronic equalization and forward-error correction

Jonathan M. Buset, Ziad A. El-Sahn, and David V. Plant
Opt. Express 20(13) 14428-14436 (2012)

Improved Energy Efficiency for Optical Transport Networks by Elastic Forward Error Correction

Anders Rasmussen, Metodi P. Yankov, Michael S. Berger, Knud J. Larsen, and Sarah Ruepp
J. Opt. Commun. Netw. 6(4) 397-407 (2014)

Effects of Optical Layer Impairments on 2.5 Gb/s Optical CDMA Transmission

Helena X. C. Feng, Antonio J. Mendez, Jonathan P. Heritage, and William J. Lennon
Opt. Express 7(1) 2-9 (2000)