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

The Korean Institute of Commucations and Information Sciences (한국통신학회)
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Optical Line Remote-Monitoring System Using Reflecting Filter

반사필터를 이용한 광선로 원격감시 시스템

  • Jung, So-Ki (Seoul School of Integrated Sciences & Technologies) ;
  • Cha, Kyoung Cheon (Dong-A University Department of Business Administration)
  • Received : 2014.04.20
  • Accepted : 2014.06.11
  • Published : 2014.06.30
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Abstract

In this paper deals with PON Remote monitoring solution using Reflecting Filter. The current FTTH-PON can not be monitored in real time that Optical cable fault and Quality degradation of Splitter. To solve this problem, Monitoring can make Feeder Network and Splitter that Reflecting filter development using the basic structure of Fiber Bragg grating. Reflecting Filter is Quality Monitoring System shall provide tools for user to view and analyze degradation of cables and splitter in particular predict any gradual component degradation(Optical cable bending, splice, connector, etc) before it becomes service impacting. The Reflecting Filter solution is splitter down and confirm the fault location of optical cable and it will send central control station can be monitored system an alarm to the OLT. In other words, wavelength side branches Mating existing communication affairs (Coupler) using the core of one optical wavelength for live monitoring two wavelengths and sends the subscriber side modem and aggregation switch device remotely using a reflective optical line filter monitoring the study of the system. this study can development of Reflecting filter improve the average processing time of Optical cable fault and efficient Maintenance of the network.

본 논문은 반사필터를 사용하여 FTTH-PON의 원격제어 시스템을 다루고 있다. 기존의 FTTH-PON방식은 광케이블 고장과 수동분기소자(Splitter)의 품질 저하가 발생하는 것을 실시간 인지 할 수 없다. 본 연구에서는 이를 해결하기 위해서 광섬유 브래그 격자 원리를 이용한 반사필터를 개발하여 간선망과 Splitter를 감시 할 수 있게 하였다. 반사필터는 광케이블 밴딩, 커넥터 상태와 스플리터의 품질이 점진적으로 저하되는 것을 모니터링 하고 광케이블 고장, 수동 광분배기(Splitter) 등의 고장 위치를 확인하여 OLT측에 경보를 보내서 중앙관제에서 감시할 수 있는 시스템이다. 즉, 기존 통신 국사 측 파장분기 결합부(Coupler)를 이용해 1개의 광심선으로 live 파장과 감시용 파장을 2개로 보내어 가입자 측 장치인 모뎀과 집선 스위치에 반사필터를 사용하여 원격으로 광선로를 감시하는 시스템에 관한 연구이다. 이러한 반사필터의 개발로 인해 광선로 평균 고장처리 시간 단축과 효율적 유지보수를 할 수 있을 것으로 기대한다.

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