한국통신학회논문지 (The Journal of Korean Institute of Communications and Information Sciences)

  • 제25권9B호
  • /
  • Pages.1518-1526
  • /
  • 2000
  • /
  • 1226-4717(pISSN)
  • /
  • 2287-3880(eISSN)
한국통신학회 (The Korean Institute of Commucations and Information Sciences)
권호 표지

분산보상 광섬유를 이용한 초고속 단일모드 광섬유 전송링크의 최적 설계 연구

Optimum Design of High Speed Transmission SMF Link Using DCF

  • 김용범 (고려대학교 통신시스템기술학과)
  • 발행 : 2000.09.01
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초록

본 논문은 기존 표준 단일모드 광섬유 링크를 통하여 초고속 광신호의 장거리 전송이 가능하도록 분산보상 광섬유를 이용한 최적 분산보상 기법에 기반을 둔 전송링크 설계 방법을 제안하였다. 제안한 방법에서는 광섬유의 비선형성에서 비롯되는 자기위상변조(Self-Phase Modulation: SPM)와 광증폭기에서 발생하는 증폭자연방출(Amplified Spontaneous Emission : ASE) 잡음에 대하여 증폭기간 거리와 중계기간 거리를 최적화함으로써 전송신호 속도에 따른 최대 전송거리를 제시하였다. 또한 주어진 증폭기간 거리와 중계기간 거리에 대하여 ASE 잡음과 SPM의 효과의 균형적 관계로부터 최적의 입력 신호전력의 범위가 있음을 제시하였다.

This paper proposes an optical transmission link design method based on an optimum compensation scheme using dispersion compensating fiber (DCF), so that high-speed long-distance optical transmission would be possible over the conventional standard single mode fiber (SMF) link. The proposed design method provides the maximized transmission distances according to the signal speeds, where the amplifier spacing and repeater spacing are optimized wit respect to self-phase modulation(SPM) due to fiber nonlinearity and amplified spontaneous emission (ASE) noises caused by optical amplifies. It is also shown that there exists an optimum input signal power range balancing the effects of ASE noise and SPM for the given amplifier spacing and repeater spacing.

키워드

참고문헌

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