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Proceedings Paper

1x16 demultiplexer using volume holographic gratings in iron-doped lithium niobate
Author(s): Jun-Won An; Nam Kim; Kwon-Yeon Lee; Hyun-Jae Lee; Wang-Seok Seo
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Paper Abstract

A novel photorefractive demultiplexer for dense wavelength division multiplexing (DWDM) applications has been experimentally demonstrated for the first time, by using the narrow-band filtering and demultiplexing properties of a volume holographic gratings formed in lithium niobate crystal. For the multiple recording of the 16-wavelength channels with equal diffraction efficiency, the rotation multiplexing and the exposure time schedule are used. The 1x16 photorefractive DMUX is designed to work with a channel spacing of 0.5nm range from 670nm to 677.5nm and a bandwidth of 0.16nm. From the experimental results, the measured diffraction efficiency of each channel is 8.3+/- 0.62%. The 3dB bandwidth of 0.16+/- 0.005nm and the channel spacing of 0.46 approximately 0.5nm, with optical loss from Fresnel reflection and absorption in the crystal of 2.22dB/cm, are measured.

Paper Details

Date Published: 19 October 2000
PDF: 11 pages
Proc. SPIE 4110, Photorefractive Fiber and Crystal Devices: Materials, Optical Properties, and Applications VI, (19 October 2000); doi: 10.1117/12.404795
Show Author Affiliations
Jun-Won An, Chungbuk National Univ. (South Korea)
Nam Kim, Chungbuk National Univ. (South Korea)
Kwon-Yeon Lee, Sunchon National Univ. (South Korea)
Hyun-Jae Lee, Electronics and Telecommunications Research Institute (South Korea)
Wang-Seok Seo, Electronics and Telecommunications Research Institute (South Korea)


Published in SPIE Proceedings Vol. 4110:
Photorefractive Fiber and Crystal Devices: Materials, Optical Properties, and Applications VI
Shizhuo Yin; Francis T. S. Yu, Editor(s)

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