Spectral efficiencies of the optical CDMA-based PONs using two-code keying

Authors:
Chao-Chin Yang
Affiliations:
Department of Electro-Optical Engineering, Kun Shan University, Tainan Hsien Taiwan, R.O.C.
Venue:
IEEE Communications Letters
Year:
2010

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Abstract

The method to generate codewords from traditional maximum length sequences (m-sequence) in the spectral-amplitude coding(SAC) optical code-division multiple-access (OCDMA) network is present. When these codewords are adopted, two code keying can be used and superior spectral efficiencies can be obtained in the networks as compared to original m-sequences. In addition, since the corresponding coder can be implemented compactly by the use of commercial arrayed waveguide gratings(AWGs), these codewords are suitable for the application of OCDMA-based passive optical networks.