The Journal of Korean Institute of Electromagnetic Engineering and Science (한국전자파학회논문지)

The Korean Institute of Electromagnetic Engineering and Science (한국전자파학회)
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Pulse Broadening of Optical Pulse Propagated through the Turbulent Atmosphere

교란대기를 통해 전송되는 광 펄스의 퍼짐에 관한 연구

  • 정진호 (호서대학교 전기정보통신공학부 전자정보기술전공)
  • Published : 2004.01.01
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Abstract

When an optical pulse is propagated through the atmosphere space, it is attenuated and broadened by the effect of atmospheric turbulence. This pulse broadening is occurred by the fluctuation in the arrival time of pulse at an optical receiver. In digital optical communication, the attenuation is important factor but the pulse broadening is more important. In this paper, thus, we will find the broadening of pulse propagated through the turbulent atmosphere, present it as the function of the structure constant for the refractive index fluctuation, and simulate it to the turbulent strength and the transmission length.

광 펄스가 대기 공간을 통해 전파될 때, 광 펄스는 대기 교란으로 인해 감쇠되고 퍼지게 되며, 이러한 펄스 퍼짐은 광 수신단에서 도착되는 펄스의 요동으로 인해 발생한다. 디지털 광통신에서는 감쇠도 중요한 인자이지만 펄스 퍼짐이 더 중요한 인자로 작용한다. 이에, 본 논문에서는 교란 대기를 통해 전파되는 광 펄스의 퍼짐을 구하고, 이러한 펄스 퍼짐을 대기 교란 상수인 굴절률 구조함수로 나타내고 대기 교란 상태와 전송거리에 따른 펄스 퍼짐 정도를 시뮬레이션 하였다.

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References

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