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

The Korean Institute of Commucations and Information Sciences (한국통신학회)
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Gigabit-capable WDM-PON Using Long-Wavelength VCSEL

장파장 VCSEL을 이용한 Gigabit-capable WDM-PON

  • 박상민 (인하대학교 정보통신공학과 광정보통신 연구실) ;
  • 이승걸 (인하대학교 정보통신공학과 광정보통신 연구실) ;
  • 오범환 (인하대학교 정보통신공학과 광정보통신 연구실) ;
  • 박세근 (인하대학교 정보통신공학과 광정보통신 연구실) ;
  • 이일항 (인하대학교 정보통신공학과 광정보통신 연구실)
  • Published : 2004.02.01
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Abstract

This paper reports on the simulation study of gigabit-capable Passive Optical networks (GPON) using WDM focused on single light source per each channel, and proposes using 1550nm VCSEL for light sources. Proposed system uses high speed direct-modulated light sources, in which the merit is able to maintain a low loss. to support broad bandwidth, and to lower network configuration cost. We conformed simulation study on the transmission of the downstream 2.5Gbit/s, upstream 1.25Gbit/s, 622Mbit/s which was recommended by ITU-T G.984.1. We measured the transmission margin and examined the feasibility of proposed system.

본 논문은 채널당 단일광원을 사용하는 WDM방식을 이용하여 기가비트 전송이 가능한 수동광가입자망인GPON 을 분석하였으며, 광원으로 1550nm대역의 장파장 VCSEL을 제안하였다. 본 시스템은 고속으로 직접변조가 가능한 저가의 광원을 사용하여 망구성비용을 낮추면서도 낮은 손실과 넓은 대역폭을 확보할 수 있다. 시스템의 타당성을 입증하기 위해 ITU-T G.984.1에서 권고하는 하향 2.5Gbit/s, 상향 1.25Gbit/s, 622Mbit/s의 전송에 대한 시뮬레이션을 하였으며 표준안을 근거로 비교분석하여 상하향전송에서 적합성과 여유도를 확인하였다.

Keywords

References

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