Journal of the Optical Society of Korea

Optical Society of Korea (한국광학회)
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Holographic Demultiplexer with Low Polarization Dependence Loss using Photopolymer Diffraction Gratings

  • Lee, Kwon-Yeon (Dept. of Electronics Engineering, Sunchon National University) ;
  • Jeung, Sang-Huek (Dept. of Electronics Engineering, Sunchon National University) ;
  • Do, Due-Dung (School of Electrical & Computer Engineering, Chungbuk National University) ;
  • Kim, Nam (School of Electrical & Computer Engineering, Chungbuk National University) ;
  • An, Jun-Won (Dept. of Electrical Engineering, Pennsylvania State University)
  • Received : 2007.05.02
  • Published : 2007.06.25
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Abstract

A holographic demultiplexer aimed at producing low polarization dependence loss using a long period volumetric diffraction grating inside photopolymer has been reported and experimentally demonstrated. To obtain the long period gratings, two kinds of gratings are recorded by angle of $4^{\circ}\;and\;6^{\circ}$ corresponding to the polarization dependence property of below 0.5 dB. From the experimental results, we demonstrate the 0.8 nm-spaced 21 channel holographic demultiplexer with the polarization dependence loss of less than -0.38 dB, the channel uniformity of 0.495 dB, and the channel crosstalk of -13 dB.

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References

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