Codes for optical CDMA

Authors:
Reza Omrani;P. Vijay Kumar
Affiliations:
EE-Systems, University of Southern California, Los Angeles, CA;ECE Department, Indian Institute of Science, Bangalore, on leave of absence from, EE-Systems, University of Southern California, Los Angeles, CA
Venue:
SETA'06 Proceedings of the 4th international conference on Sequences and Their Applications
Year:
2006

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Abstract

There has been a recent upsurge of interest in applying Code Division Multiple Access (CDMA) techniques to optical networks. Conventional spreading codes for OCDMA, known as optical orthogonal codes (OOC) spread the signal in the time domain only, which often results in the requirement of a large chip rate. By spreading in both time and wavelength using two-dimensional OOCs, the chip rate can be reduced considerably. This paper presents an overview of 1-D and 2-D optical orthogonal codes as well as some new results relating to bounds on code size and code construction.