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Noncoherent spectral optical code division multiple access system using one-dimensional added length codes

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Abstract

This work proposes a new family of 1-D added length codes for use in spectral amplitude coding optical code division multiple access (OCDMA) networks. The proposed structure uses the proposed optical line terminal (OLT ) and optical network units (ONUs) to produce a simple architecture for ease of operation. The OLT transfers the information bits into the code sequences of 1-D added length codes in OCDMA. The ONUs use the code sequences of the 1-D added length codes to perform a modified cross-correlation, which produces the recovered “1” and “0” bits at the photodiodes. The photodiodes remove the interference caused by other simultaneous users, which is called multi-user interference. Additionally, the proposed modified cross-correlation process suppresses the phase-induced intensity noise. The numerical results demonstrate the bit error rate of the proposed system using 1-D added length codes to be better than that of other comparable systems using 1-D M-sequence codes, 1-D composite M-sequence codes, 1-D Hadamard codes, and 1-D MQC codes. The data transmission rate using the 1-D added length codes can reach 2.5 Gbps.

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Acknowledgments

The author would like to thank the High Speed Intelligent Communication (HSIC) Research Center in Chang Gung University, Taiwan, for providing facilities and financial support.

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Authors and Affiliations

  1. Department of Electrical Engineering, School of Electrical and Computer Engineering, College of Engineering, Chang-Gung University, Taoyuan, Taiwan, ROC

    Bih-Chyun Yeh

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  1. Bih-Chyun Yeh
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Correspondence to Bih-Chyun Yeh.

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Yeh, BC. Noncoherent spectral optical code division multiple access system using one-dimensional added length codes. Opt Quant Electron 48, 400 (2016). https://doi.org/10.1007/s11082-016-0672-1

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