Journal of Advanced Navigation Technology (한국항행학회논문지)

The Korean Navigation Institute (한국항행학회)
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Effects of Deviations of RDPS on the Compensation for Distorted WDM Channels in Dispersion-Managed Optical Transmission Links of Random Distribution Schemes

랜덤 분포 구조의 분산 제어 광전송 링크에서 RDPS의 편차가 왜곡된 WDM 채널의 보상에 미치는 영향

  • Lee, Seong-Real (Department of Marine Information and Communication Engineering, Mokpo National Maritime University)
  • 이성렬 (목포해양대학교 해양정보통신공학과)
  • Received : 2015.03.31
  • Accepted : 2015.04.17
  • Published : 2015.04.30
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Abstract

The compensation characteristics of WDM channels depending on residual dispersion per spans (RDPS) deviation in optical links with the randomly distributed RDPS for the adaptive configuration are investigated in this paper. Also, the link design rule related with RDPS deviations is proposed, from the viewpoint of the allowable net residual dispersion (NRD). It is confirmed that the effect of compensation for the distorted WDM channels is more increased as RDPS deviation is smaller. Also, it is confirmed that the decrease of the allowable NRD range for the exact eye opening penalty (EOP) is proportional to RDPS deviation. Therefore, the results of this research is expected to be the design reference for the flexible link configuration of long-haul optical transmission links.

분산 제어 (DM; dispersion management)와 광 위상 공액 기술이 결합된 전송 링크의 융통적 구성을 위해 중계 구간 당 잉여 분산(RDPS; residual dispersion per span)이 랜덤하게 분포하는 링크에서 RDPS 편차에 따른 WDM 채널의 보상 특성을 살펴보았다. 또한 허용 가능 NRD (net residual dispersion) 관점에서 RDPS 편차에 따른 링크 설계 기준도 제시하였다. RDPS 편차가 적을수록 WDM 채널 보상 효과가 우수하다는 것을 확인하였다. 또한 특정 눈 열림 패널티 (EOP; eye opening penalty)를 얻을 수 있는 허용 가능 NRD가 RDPS 편차에 비례하여 감소하는 것을 확인하였다. 따라서 본 연구 결과는 융통적인 장거리 광전송 링크 설계에 참고 자료가 될 것으로 기대한다.

Keywords

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