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

The Korean Institute of Electromagnetic Engineering and Science (한국전자파학회)
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Fiber-Optic Directional Coupler Using HF Wet-Etching

플루오린화 수소산의 습식식각법을 이용한 광섬유형 방향성 결합기

  • Son, Gyeongho (School of Electrical Engineering, Korea Advanced Institute of Science and Technology) ;
  • Jung, Youngho (School of Electrical Engineering, Korea Advanced Institute of Science and Technology) ;
  • Yu, Kyoungsik (School of Electrical Engineering, Korea Advanced Institute of Science and Technology)
  • 손경호 (한국과학기술원 전기 및 전자공학부) ;
  • 정영호 (한국과학기술원 전기 및 전자공학부) ;
  • 유경식 (한국과학기술원 전기 및 전자공학부)
  • Received : 2016.10.07
  • Accepted : 2016.11.17
  • Published : 2017.01.31
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Abstract

In this paper, a fabrication method of low-loss tapered optical fibers coupler using hydrofluoric acid with surface tension driven is proposed. The proposed fabrication method is very simple compared to flame-based method, and shows low excess insertion losses compared to polishing method. The adiabatic-tapered structure along the coupling region of the coupler shows wavelength independent characteristic over the C-band in optical communication system, and will enable promising applications.

본 논문에서는 플루오린화 수소산(hydrofluoric acid)과 표면 장력을 이용한 손실이 낮은 광섬유형 방향성 결합기 제작 방법을 제안한다. 제안한 방향성 결합기 제작 방법은 기존에 일반적으로 이용하던 열원을 이용한 제작 방법과는 다르게 다양한 장비들이 요구되지 않으며, 마멸을 이용한 방법보다 손실이 낮으며, 제작 과정이 매우 쉽다. 또한, 제작된 결과물은 테이퍼드(tapered) 형태의 아디아바틱(adiabatic)한 구조로 인해 광통신에서 널리 이용되는 C-band 영역에서 파장 의존성이 낮아 광통신에서 유망한 역할을 맡을 수 있다.

Keywords

References

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