한국항행학회논문지 (Journal of Advanced Navigation Technology)

  • 제20권5호
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  • Pages.462-467
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  • 2016
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  • 1226-9026(pISSN)
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  • 2288-842X(eISSN)
한국항행학회 (The Korean Navigation Institute)
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중계 구간이 증가할수록 SMF 길이와 RDPS가 점진적으로 증가하거나 감소하는 분산 제어 광전송 링크

Dispersion-managed Optical Links with the Ascending or Descending of SMF Lengths and RDPS as the Fiber Span is Increased

  • 이성렬 (목포해양대학교 해양정보통신공학과)
  • Lee, Seong-Real (Department of Marine Information and Communication Engineering, Mokpo National Maritime University)
  • 투고 : 2016.08.11
  • 심사 : 2016.10.19
  • 발행 : 2016.10.30
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초록

MSSI (mid-span spectral inversion)와 결합된 분산 제어 (DM; dispersion management)는 광섬유가 갖는 색 분산과 비선형 효과에 기인하는 신호 왜곡을 줄일 수 있는 기술이다. 이러한 전송 링크의 융통적 구성을 위해 단일 모드 광섬유 (SMF; single mode fiber)의 길이와 중계 구간 당 잉여 분산 (RDPS; residual dispersion per span)이 중계 구간이 증가할수록 점진적으로 증가되거나 감소되는 인위적 분포 링크에서 전체 잉여 분산 (NRD; net residual dispersion) 제어 위치에 따른 왜곡된 WDM 채널의 보상 특성을 살펴보았다. 각 전송 반 구획 중 WDM 채널의 광 펄스 폭이 가장 좁아지는 중계 구간이 NRD 조절 위치가 되도록 SMF 길이와 RDPS를 점진적 증가 또는 감소 분포 패턴으로 링크를 구성해야 최상의 보상 효과를 얻을 수 있는 것을 확인하였다.

Dispersion management (DM) combining with mid-spans spectral inversion (MSSI) is one of the various techniques compensating for the distorted optical signals. For the flexible implementation of this configured link, the compensation characteristics in the optical link with artificial distribution of the gradually ascending and descending of single mode fiber (SMF)'s lengths and residual dispersion per span (RDPS) as the number of fiber spans are assessed as a function of the control positions of net residual dispersion (NRD). It is confirmed that the best compensation is obtained by distributing gradually ascending or descending of SMF's lengths and RDPS capable to place NRD control position at fiber span, in which optical pulse width is most narrow.

키워드

참고문헌

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