Reduction of leakage effect with circulator-free fiber-gratings codec array in OCDMA network

Cheng Mu Tsai, Jen Fa Huang

研究成果: Article同行評審

8 引文 斯高帕斯(Scopus)

摘要

The spectral-amplitude-coding (SAC) optical code-division multiple-access (OCDMA) systems use transmissive-mode fiber-Bragg gratings (FBG) instead of reflective-mode to avoid chip-timing. However, practical FBGs have non-ideal reflection coefficients to produce leakage effect and high phase-induced intensity noise (PIIN). This study is to cascade more of the same-frequency non-ideal FBGs to approach an ideal squared perfect spectrum for highly reliable network coding. A simple experiment is demonstrated to verify the square-like approach. Moreover, a residual-spectra eliminator (RSE) between FBG encoder and decoder is taken to remove non-coding part of the transmissive spectra for the suppression of PIIN in the receiver photo-detectors. Evaluation results show that the combination of RSE with cascaded FBGs can significantly improve the leakage and the PIIN effects for the SAC-OCDMA network. Crown

原文English
頁(從 - 到)445-450
頁數6
期刊Optical Fiber Technology
15
發行號5-6
DOIs
出版狀態Published - 2009

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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