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

  • 제28권8호
  • /
  • Pages.6-13
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  • 2014
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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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편광상이 고리 형태의 다파장 스위칭 가능한 1차 광섬유 유연 필터의 스펙트럼 특성

Spectral Characteristics of Multiwavelength-Switchable First-Order Fiber Flexible Filter based on Polarization-Diversity Loop

  • 박경수 (부경대학교 전기공학과) ;
  • 김영호 (한국전기연구원 나노융합기술 연구센터) ;
  • 이용욱 (부경대학교 전기공학과)
  • 투고 : 2014.01.29
  • 심사 : 2014.06.20
  • 발행 : 2014.08.31
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초록

In this paper, a multiwavelength-switchable first-order fiber flexible filter is newly proposed, which is based on a polarization-diversity loop. The proposed filter consists of a polarization beam splitter, three half-wave plates(HWPs), and two high birefringent fibers(HBFs). The proposed filter has a good flexibility in adjusting relative angular difference between the principal axes of two HBFs by inserting an HWP between two HBFs. The first-order flat-top or narrow band transmission spectra and the zeroth-order transmission spectra, which had a channel spacing of ~0.8nm, could be obtained by controlling the three HWPs, and, in particular, each of them could also be interleaved. In addition, zeroth-order transmission spectra with a channel spacing of ~0.8nm could be flexibly converted into those with a channel spacing of ~0.4nm through the control of three HWPs, and also be interleaved. The transmission characteristics of the proposed filter was theoretically analyzed and experimentally verified.

키워드

참고문헌

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