조명전기설비학회논문지 (Journal of the Korean Institute of Illuminating and Electrical Installation Engineers)

  • 제26권6호
  • /
  • Pages.8-15
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  • 2012
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  • 1229-4691(pISSN)
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  • 2287-5034(eISSN)
한국조명전기설비학회 (The Korean Institute of IIIuminating and Electrical Installation Engineers)
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단일 모드 광섬유의 복굴절이 편광상이 배치구조 기반 고차 광섬유 빗살 필터의 출력 스펙트럼에 미치는 영향에 대한 고찰

Study on Birefringence Effect Of Single-Mode Fiber on Output Spectra of High-Order Fiber Comb Filter Based on Polarization-Diversity Loop Configuration

  • 김영호 (부경대학교 전기공학과) ;
  • 이용욱 (부경대학교 전기공학과)
  • 투고 : 2012.04.10
  • 심사 : 2012.05.16
  • 발행 : 2012.06.30
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초록

In this paper, we investigated possible optical parameters causing deviation of experimentally observed output spectra from theoretically predicted results in a high-order fiber comb filter based on a polarization-diversity loop configuration. They include wavelength dependency of half-wave plates (HWPs) inserted in the filter for wavelength switching and the modal birefringence of single-mode fibers (SMFs) with which optical components comprising the filter are connected. In order to consider the effect of the modal birefringence of the SMF on a filter performance, it is modeled as a low birefringence fiber with an arbitrary orientation angle and birefringence. It is found from the simulation results that the modal birefringence of SMFs strongly affects the spectral characteristics of the filter and decreases the extinction ratio of the filter, compared with the wavelength dependency of HWPs. In particular, it is also confirmed that the spectral deviation and asymmetric distortions of side-lobes in narrow band transmission spectra result mainly from the modal birefringence of SMFs.

키워드

참고문헌

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피인용 문헌

  1. Analysis on the Domestic and International Illumination Research Trends in 2012 and Further Study Suggestion vol.27, pp.12, 2013, https://doi.org/10.5207/JIEIE.2013.27.12.028