한국광학회지 (Korean Journal of Optics and Photonics)

  • 제33권5호
  • /
  • Pages.210-217
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  • 2022
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  • 1225-6285(pISSN)
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  • 2287-321X(eISSN)
한국광학회 (Optical Society of Korea)
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Window 밀폐형 광 커넥터의 허용 공차에 관한 연구

Study of the Acceptable Tolerances of a Window Hermetic Optical Connector

  • 전우성 (한국공학대학교 나노반도체공학과) ;
  • 정미숙 (한국공학대학교 나노반도체공학과)
  • Jeon, Woo-Sung (Department of Nano-semiconductor Engineering, Tech University of Korea) ;
  • Jung, Mee-Suk (Department of Nano-semiconductor Engineering, Tech University of Korea)
  • 투고 : 2022.09.21
  • 심사 : 2022.09.27
  • 발행 : 2022.10.25
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초록

Window 밀폐형 광 커넥터의 정렬오차로 인해 발생하는 광 손실을 감소시키기 위해 정렬용 기구물의 허용 공차에 대한 연구를 진행하였다. 광섬유 간 결합을 위해 사용되는 광 커넥터는 광신호 전달 및 광통신 시스템의 전달 거리 증가를 위해 높은 광효율을 유지 및 향상시키는 것이 중요하다. Window 밀폐형 광 커넥터의 경우 정렬용 기구물을 통해 광학계를 정렬하며, 이때 두 커넥터를 결속한 채 사용하기 때문에 구성요소가 고정되어 추가적인 정렬이 불가능하다. 광 커넥터의 광학계 정렬을 위해 사용되는 하우징 시스템 및 정렬 핀이 가지는 정렬오차는 광 손실을 발생시켜 광통신 시스템의 심각한 문제를 야기한다. 따라서 해당 광 커넥터의 정렬용 기구물 제작 시 요구되는 허용 공차에 대한 연구를 위해 광 커넥터의 광학 부품인 볼렌즈와 window의 공차 분석을 진행하였다. 또한, single-mode와 multi-mode 광 커넥터 광학계를 각각 구현하여 광 효율 시뮬레이션을 진행하고, 그 결과를 기반으로 정렬용 기구물에 대한 허용 공차 값을 도출하였다.

In this paper, a study is conducted on the acceptable tolerance of an alignment device to reduce the optical loss caused by the alignment tolerance of a window hermetic optical connector. To increase the transmission distance of optical signals and fiber-optic communication systems, it is necessary to maintain and improve the high optical efficiency of the connectors used to bond optical fibers. In the case of the window hermetic optical connector, the optical system is aligned through an alignment device. At this time, since the two connectors are used together, each component is fixed, and further alignment is impossible. The alignment tolerance of the housing system and pin used to align the optical system of the connector causes optical loss, leading to serious problems in the fiber-optic communication system. Thus, to find the acceptable tolerance required for manufacturing the optical-connector alignment device, tolerance analysis is performed on the components of the optical connector, such as the ball lens and the window. We also implement single-mode and multimode optical-connector systems, respectively. Based on the results, we determine an acceptable tolerance value for the alignment device.

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참고문헌

  1. M.-W. Cheon, K.-J. Cho, and Y.-P. Park, "The optimal design of POF optical connector for medical image transmission system," J. KIEEME 23, 978-982 (2010).
  2. E. J. Jung, C. S. Kim, and M. Y. Jeong, "Optimal connection condition study of the plastic optical fiber connector for automobiles," J. Korean Soc. Precis. Eng. 23, 61-68 (2006).
  3. H.-C. Ki, M.-H. Yang, S.-H. Kim, S.-T. Kim, K.-H. Park, and K.-J. Hong, "Study of multi anti-reflection coating thin film of ferrule facet manufacture and characteristics," in Proc. The 8th Korean Institute of Electrical and Electronic Material Engineers Annual Summer Conference (Pyeongchang, Korea, Jun. 21-23, 2007), pp. 408-409.
  4. H. Kim and D. Kang, "Development of non-contact fiber jumper cord and evaluation of light transmission performance," J. Korean Soc. Nondestruct. Test. 36, 399-405 (2016). https://doi.org/10.7779/JKSNT.2016.36.5.399
  5. S. Y. Lee, O. D. Kwon, and G. S. Son, "Contactless optical fiber interconnecting apparatus," Korea Patent KR101137229B1 (2011).
  6. I. Y. Hwang, J. Park, J.-S. Ha, S.-W. Ryu, "Design of silicon plano convex lens for optimized light coupling between laser diodes and single mode optical fiber," Korean J. Met. Mater. 55, 274-283 (2017). https://doi.org/10.3365/KJMM.2017.55.4.274
  7. Y. J. Jeong, "A study on connecting method of non-fusion splicing optical connector," M. S. Thesis, Sungkyunkwan University, Korea (2008).
  8. Y. S. Son, S.-S. Lee, H.-S. Lee, and J.-Y. Park, "Optical transmission and receiving device for implementing passive alignment of components and method for passively aligning components," US Patent US9739957B2 (2017).
  9. "United States military standard: performance specification," USA Department of Defense, MIL-PRF-28876F(SH) (2021).
  10. "United States military standard: defense standard," USA Department of Defense, MIL-DTL-83526/21C (2018).
  11. S. Marsuo, H. Kutami, K. Himeno, and H. Sawano, "Single-mode optical fiber," U.S. Patent US7440663B2 (2008).
  12. H.-C. Ki, H.-J. Kim, J.-C. Jo, and K.-J. Hong, "Design of antireflection coating thin film for multi-type optical connector," in Proc. Korean Institute of Electrical and Electronic Material Engineers Annual Spring Conference (Naju, Korea, Apr. 17-18, 2008), pp. 80-81.
  13. S. S. Lee, C. H. Park, H. J. Kim, Y. G. Lee, D. H. Lee, and S. W. Baek, "Expanded beam connector based on ball lens," Korea Patent KR101718481B1 (2017).
  14. K. W. Jang, "The research for increasing the optical efficiency of non-contact optical connectors," M. S. Thesis, Korea Polytechnic University, Korea (2015).
  15. Telecommunications Technology Association, "Insertion Loss," (Glossary of term for Telecommunication Technology), http://word.tta.or.kr/dictionary/dictionaryView.do?word_seq=046061-1 (Accessed Date: Sept. 21, 2022).
  16. S. H. An, O. G. Jeon, M. Y. Jung, and T. G. Choi, "광커넥터의 성능저하 요인에 대한 고찰," ETRI J. 14, 108-117 (1992).