Proceedings of the IEEK Conference (대한전자공학회:학술대회논문집)

The Institute of Electronics and Information Engineers (대한전자공학회)
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A Study on Silica based 4$\times$4 Optical Star Coupler with Tapered Coupling Structure

테이퍼 결합구조를 갖는 4$\times$4 성형 결합기에 관한 연구

  • 윤현성 (광주대학교 전자공학과) ;
  • 김정근 (광주대학교 전자공학과)
  • Published : 1998.10.01
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Abstract

Inthis paper, we design 4$\times$4 optical star coupler with tapered coupling structure. The 4$\times$4 optical star coupler consists of four 3dB couplers and a 100% coupler with tapered structure. This star coupler is designed by the 2 dimension FD-BPM(finite difference beam propagation method) using TBC(transparent boundary condition). consequently, the maximum power unbalance ratios of relative output power from each of the output waveguides for each of input guides are less than 0.1dB, and the transmission efficiency is more than 99%.

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