A new shared AWG-based OCDMA scheme implemented with time-spreading and wavelength-group-hopping embedded M-sequence code

Yao Tang Chang, Jen-Fa Huan, Chih Ta Yen, Chuen Ching Wang, Hsu Chih Cheng, Kai chun Hsu

研究成果: Article同行評審

16 引文 斯高帕斯(Scopus)

摘要

This paper exploits the inherent cyclic and periodic free-spectral-range (FSR) properties of arrayed-waveguide grating (AWG) routers to construct a two-dimensional (2D) time-spreading and wavelength-group-hopping embedded M-sequence code for optical multiple-access networks. In the proposed codecs (encoder/decoder), a fine arrayed-waveguide grating (AWG) is used to generate an M-sequence code pattern, which is then spread in the wavelength domain by multiple coarse AWGs. The signals produced at the output ports of the coarse AWGs are then spread in the time domain using optical delay lines. The 2D code is evaluated in terms of its correlation, bit-error-rate (BER) and cardinality characteristics. It is shown that the TS/GH embedded M-sequence code yields a significant improvement in both the BER and cardinality performance of the optical multiple-access networks compared to that obtained using conventional prime-hop code (PHC), modified prime-hop code (MPHC), Barker and Walsh-based bipolar-bipolar sequence.

原文English
頁(從 - 到)114-123
頁數10
期刊Optical Fiber Technology
16
發行號2
DOIs
出版狀態Published - 2010 一月 1

All Science Journal Classification (ASJC) codes

  • 電子、光磁材料
  • 控制與系統工程
  • 原子與分子物理與光學
  • 儀器
  • 電氣與電子工程

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