비선형 증폭 루프에서의 평균 솔리톤의 안정성

Stability of average soliton propagation in a nonlinear amplifying loop mirror

  • 심숙이 (공주대학교 응용물리학과 및 기초과학연구소) ;
  • 이성서 (공주대학교 응용물리학과 및 기초과학연구소) ;
  • 김광훈 (한국전기연구소 전기물리연구팀) ;
  • 김기옥 (우석대학교 반도체과학과)
  • 발행 : 2001.12.01

초록

간단한 비선형 증폭 루프에서의 평균 솔리톤 전송의 안정성을 비선형 Schroedinger방정식에 기초한 수치해석법을 이용하여 솔리톤 주기에 대한 증폭 주기의 비율과 루프에서의 erbium doped광섬유의 길이 비율을 변화시켜가며 계산하고 그 결과를 분석하였다. 계산 결과 루프에서의 erbium doped광섬유의 길이 비율이 작을 경우 증폭 주기가 솔리톤 주기에 비해 많이 작아야 한다는 기존의 평균 솔리톤 형성 조건이 완화됨을 알 수 있었다.

A numerical analysis based on the nonlinear Schroedinger equation is presented to analyze the propagation stability of the average soliton in a simple nonlinear amplifying loop mirror. The ratio of amplification period to soliton period and the length fraction of the erbium-doped fiber in the loop are varied to investigate their effects on the soliton stability. It is observed that stable soliton propagation is obtained even when the amplification period is only slightly shorter than the soliton period when the length fraction of the erbium-doped fiber in the loop is small, which is different from the previously published condition for stable average soliton propagation.

키워드

참고문헌

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