Journal of the Microelectronics and Packaging Society (마이크로전자및패키징학회지)

The Korean Microelectronics and Packaging Society (한국마이크로전자및패키징학회)
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Design of Wavelength-free 1×N Optical Splitter using a Tapered Waveguide

Compact, Fiber Array-free 광패키징 구현을 위한 신개념 광소자 설계

  • 배한욱 (부산대학교 인지메카트로닉스공학과) ;
  • 심영보 (부산대학교 인지메카트로닉스공학과) ;
  • 박준태 ((주)알텍) ;
  • 이창린 ((주)알텍) ;
  • 정명영 (부산대학교 인지메카트로닉스공학과)
  • Received : 2017.09.08
  • Accepted : 2017.12.19
  • Published : 2017.12.31
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Abstract

In this study, wavelength-free $1{\times}N$ optical splitter using a tapered polymer waveguide was studied to realize the transmission network of high-speed information communication network. Based on the evaluation of mode converting characteristics of splitter having two tapered multi-mode interference structures, an optimized structure of the $1{\times}N$ splitter was proposed for wide-range of input wavelength. 2D-BPM analysis $1{\times}8$ model showed that insertion loss of the proposed splitter is less than 10 dB for wavelength of input source from 1260 nm to 1650 nm.

본 논문에서는 방대한 양의 데이터를 전송하기 위한 고분자 광도파로를 기반으로 한 집적 평면형 다중모드 $1{\times}N$ 광 분배소자의 구조를 제안하였다. 두 개의 상이한 모양의 테이퍼 형 광도파로를 이용하여 광의 모드 변환 특성을 분석하고, 넓은 파장 영역에도 동작이 가능한 광분배기 구조를 설계하였다. 일반적인 광 분배기 구조는 Y-branch를 나열하는 형태와 Mach-Zehnder 및 커플러 형태로 제작되고 있으나, 분기부가 반복되면서 광 손실이 증가하는 문제가 있다. 해결 방안으로 본 연구에서 제안되는 구조는 Y-branch를 배열하지 않는 구조를 제안하여 분기부에 대한 손실을 줄이고, 출력단의 광의 세기가 균일하게 출력되는 해결방안을 제안하였다.

Keywords

References

  1. D. M. Kim, J. H. Ryu, and M. Y. Jeong, "Optical Packaging and Interconnection Technology", J. Microelectron. Packag. Soc., 19(4), 13 (2012). https://doi.org/10.6117/kmeps.2012.19.4.013
  2. T. H. Kim, S. H. Huh, and M. Y. Jeong, "Fabrication for Optical Layer and Packaging Technology of Optical PCB", J. Microelectron. Package. Soc., 22(1), 1 (2015).
  3. J. H. Ryu, D. M. Kim, E. S. Kim, and M. Y. Jeong, "Optical PCB and Packaging Technology", J. Microelectron. Packag. Soc., 18(1), 7 (2011).
  4. K. Jinguji, N. Takato, A. Sugita, and M. Kawachi, "Mach-Zehnder interferometer type optical waveguide coupler with wavelength-flattened coupling ratio", Electronics Letters, 26(17), 1326 (1990). https://doi.org/10.1049/el:19900855
  5. C. M. Weinert, and N. Agrawal, "Three-dimensional finite difference simulation of coupling behavior and loss in multimode interference devices", IEEE photonics technology letters, 7(5), 529 (1995). https://doi.org/10.1109/68.384533
  6. W. P. Huang, C. L. Xu, and S. K. Chaudhuri, "A finite-difference vector beam propagation method for three-dimensional waveguide structures", IEEE photonics technology letters, 4(2), 148 (1992). https://doi.org/10.1109/68.122344
  7. K. S. Chiang, "Analysis of optical fibers by the effective-index method", Applied optics, 25(3), 348 (1986). https://doi.org/10.1364/AO.25.000348
  8. C. Burtscher, D. Seyringer, and M. Lucki, "Study of the optical properties of $1{\times}16$ splitter based on Y-branch and MMI approaches", Proc. 18th International Conference on Transparent Optical Networks (ICTON), Trento, Italy, 1, IEEE (2016).
  9. Z. Wang, Z. Fan, J. Xia, S. Chen, and J. Yu, "$1{\times}8$ Cascaded Multimode Interference Splitter in Silicon-On-Insulator", Japanese journal of applied physics, 43(8R), 5085 (2004). https://doi.org/10.1143/JJAP.43.5085
  10. D. S. Levy, R. Scarmozzino, and R. M. Osgood, "Length reduction of tapered N x N MMI devices", IEEE photonics technology letters, 10(6), 830 (1998). https://doi.org/10.1109/68.681500
  11. K. A. Latunde-Dada, and F. P. Payne, "Theory and design of adiabatically tapered multimode interference couplers", Journal of lightwave technology, 25(3), 834 (2007). https://doi.org/10.1109/JLT.2006.889678
  12. IEC 875-1 (Fiber optic branching devices Part 1: Generic specification, (1992).
  13. Bellcore, "Generic Requirements for Fiber Optic Branching mponents", GR-1209-CORE, ISSUE 1, NOVEMBER, (1994).