Korean Journal of Optics and Photonics (한국광학회지)

Optical Society of Korea (한국광학회)
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Theoretical Study of Brillouin OTDA using Two Pulse Insets

두 대의 펄스 레이저를 사용한 Brillouin OTDA의 이론적 분석

  • 홍용현 (호서대학교 정보통신공학과) ;
  • 이호준 (호서대학교 정보통신공학과)
  • Published : 2007.06.25
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Abstract

A theoretical study of Brillouin optical time domain analysis (BOTDA) using two pulse lasers is performed. Even though a point detection is made for a pump pulse period, the dynamic range of BOTDA using two pulse lasers is approximately 5 dB more than that of a pulse and a CW laser when the fiber length is 140 km and the Stokes power is 1 mW.

두 대의 펄스 레이저를 사용한 BOTDA(Brillouin optical time-domain analysis)의 이론적 연구가 수행되었다. 비록 펌프 펄스 주기동안 한 점의 정보만을 측정할 수 있지만 시스템의 동적 범위 성능은 광섬유 길이가 140 km이고 스톡스(Stokes) 전력이 1 mW일 때 펄스와 CW 레이저를 사용한 시스템 보다 5 dB 큰 것으로 분석되었다.

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References

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