Estimation of performance degradation of bidirectional WDM transmission systems due to Rayleigh backscattering and ASE noises using numerical and analytical models

Jeongyun Ko, Seongha Kim, Jaehoon Lee, Shinhee Won, Y. S. Kim, Jichai Jeong

Research output: Contribution to journalArticle

26 Citations (Scopus)


We develop a numerical model for the transmission performance of bidirectional wavelength-division-multiplexed (WDM) transmissions. Using the numerical model, wavelength-interleaved 10-Gb/s bidirectional WDM systems are analyzed by considering the impairment of the system performance due to Rayleigh backscattering (RB). We also calculate the power penalty and the crosstalk due to RB from the analytical model, and then compare to the results obtained from the numerical model. The analytical model can provide similar results obtained from the numerical model. Both the numerical and analytical models suggest that the total isolation of filters must be more than 19.5 dB for 320-km transmission while keeping the power penalty of less than 2 dB.

Original languageEnglish
Pages (from-to)938-946
Number of pages9
JournalJournal of Lightwave Technology
Issue number4
Publication statusPublished - 2003 Apr



  • Bidirectional amplification
  • Bidirectional transmission
  • Crosstalk
  • Rayleigh backscattering (RB)

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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