Fabrication and Characteristics of Wavelength Insensitive Optical Fiber Coupler

파장 무의존형 광섬유 결합기의 제작 및 특성

  • 장진현 (두일전자통신(주)) ;
  • 신동호 (전자부품종합연구소) ;
  • 정진호 (호서대학교 전기전자제어공학부) ;
  • 한욱 (건국대학교 전자공학과) ;
  • 김영권 (건국대학교 전자공학과)
  • Published : 1998.12.01

Abstract

Optical fiber coupler is a crucial optical passive component for optical transmission systems. In this paper, we fabricate wavelength insensitive optical coupler(WIC), of two types for which the processing procedures are complicate and difficult. These couplers are fabricated by two optical fibers having either different fiber parameters or different cladding diameters. To clarify the validity, we measure the optical characteritics and compare to the data of theoretical simulation. The experiment results ref#eat that it has uniformity of about 1.0 dB and excess loss of less than 0.1 dB in the range of $1310{\pm}40nm\;and\;1550{\pm}40nm$.

광섬유형 결합기는 광통신용으로 폭넓게 사용되고 있는 핵심 광수동부품이다. 본 논문에서는 제작공정이 어려운 파장 무의존형 광 결합기(WIC)를 광섬유가 서로 다른 광섬유 파라미터를 갖는 경우와 서로 다른 클래딩 직경을 갖는 경우에 대해 제작하여 그 특성을 측정하고 이론적 시뮬레이션과 비교 분석하였다. 실험 결과 $1310{\pm}40nm$$1550{\pm}40nm$의 대역에서 1.0dB 이내의 균일성과 과잉손실이 0.1dB 이하인 우수한 특성을 얻었다.

Keywords

References

  1. Theory of dielectric optical waveguides 2nd edition Marcuse, D.
  2. J. Lightwave Technol. v.6 no.3 Optical fiber couplers - Optimum solution for unequal cores Snyder, A.W.;Ankiewicz, Adrian
  3. J. Lightwave Technol. v.8 no.6 Analysis of Optical fiber directional coupling based on the HE11 modes - part I : The identical - Core case Huang, Horng-Shou;Chang, Hung-Chun
  4. J. Lightwave Technol. v.LT-5 Fiber coupler fabrication with automatic fusion elongation processes for low loss and hogh coupling ratio accuracy Yokohama, I.;Okamoto, K.;Noda, J.
  5. 도파로형 광커플러 기술이전 보고서 신장욱;성희경(외)
  6. J. Lightwave Technol. v.8 Theoretical investigation of light coupling phenomena in wavelength flattened couplers Okamoto, K.
  7. Springer Proceedings in Physics v.44 Wavelength flattened couplers fabricated from single mode fibers with different core parameters Hanafusa, H.;Takeuchi, Y.;Noda, J.
  8. Electron. Lett. v.21 Wavelength-flattened fused couplers Mortimore, D.B.
  9. Electron. Lett. v.25 Wavelength flattened couplers : Performance optimisation by twist tuning Birks, T.A.;Hussey, C.D.
  10. J. Lightwave Technol. v.LT-4 Wavelength selective directional coupler made of nonidentical single mode fibers Zengerle, R.;Leminger, O.G.
  11. Opt. Lett. v.16 Wavelength flattened 2*2 splitters made of identical single mode fibers Gonthier, F.;Ricard, D.;Lacroix, S.;Bures, J.
  12. 제5회 광전자공학 학술대회 광대역특성을 갖는 광섬유 커플러 제작 장진현;이익희;신동호;윤대원