한국광학회:학술대회논문집 (Proceedings of the Optical Society of Korea Conference)

한국광학회 (Optical Society of Korea)
권호 표지

Spatial and spectral characteristics of an optical demultiplexer based on a holographic chirp grating

  • Do, Duc-Dung (Department of Computer and Communication Engineering, Chungbuk National University) ;
  • Kim, Nam (Department of Computer and Communication Engineering, Chungbuk National University) ;
  • An, Jun-Won (Prismtek co.) ;
  • Lee, Kwon-Yeon (Department of Electronic Engineering, Sunchon National University) ;
  • Kim, Eun-Kyoung (Department of Chemical Engineering, Yonsei University)
  • 발행 : 2007.02.01
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초록

In this paper, the spatial and spectral characteristics of an optical demultiplexer based on a chirp volume holographic grating are presented. The chirp grating is recorded by illuminating the photopolymer film under the interference of a convergent beam and divergent beam. The dependence of the spatial distance on the grating-focusing lens separation is observed. The bandwidth and the crosstalk between two channels with 0.4-nm spectral interval are 0.13 nm and 12 dB, respectively.

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