The Journal of the Korea institute of electronic communication sciences (한국전자통신학회논문지)

Korea Institute of Electronic Communication Science (한국전자통신학회)
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Low Loss Plastic Optical Fiber Coupler Incorporating a Polymer Tapering Waveguide Region

폴리머 테이퍼링 도파로 영역이 있는 저 손실 플라스틱 광섬유 커플러

  • Received : 2012.06.29
  • Accepted : 2012.08.09
  • Published : 2012.08.31
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Abstract

In this paper, we proposed and demonstrated a low loss $1{\times}4$ type plastic optical fiber(POF) coupler incorporating a polymer tapering waveguide region. To avoid leakage loss at the interfaces between the POF and the polymer waveguide, we employed two POF transition regions, in which the cross section of the POF is adiabatically converted from a circular to a rectangular shape without change of its cross-section area. The device was fabricated based on a injection mold made of a silicon rubber. The fabricated POF coupler showed 1.33 dB of excess loss and 2.2 dB of flatness.

본 논문에서는 폴리머 테이퍼링 도파로 영역을 포함하는 $1{\times}4$ 형태의 플라스틱 광섬유 커플러를 제안하고 구현하였다. 플라스틱 광섬유와 폴리머 사각 도파로의 접속면에서 광 누설 손실을 줄이기 위해 단면이 원형에서 구형으로 천천히 바뀐 플라스틱 광섬유를 도입하였다. 실리콘 고무로 만들어진 주형을 이용하여 소자를 제작하였다. 제작된 소자는 1.33 dB의 삽입손실과 2.2 dB의 평탄도를 보였다.

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References

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