Proceedings of the Optical Society of Korea Conference (한국광학회:학술대회논문집)
- 2007.02a
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- Pages.68-69
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- 2007
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) ;
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Kim, Nam
(Department of Computer and Communication Engineering, Chungbuk National University) ;
- An, Jun-Won (Prismtek co.) ;
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Lee, Kwon-Yeon
(Department of Electronic Engineering, Sunchon National University) ;
- Kim, Eun-Kyoung (Department of Chemical Engineering, Yonsei University)
- Published : 2007.02.01
Abstract
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.
Keywords