Apodization method by nonuniform spatial distribution of diffraction gratings for photorefractive wavelength filter

K. Suzuki; A. Okamoto; S. Honma

doi:10.1364/ACP.2009.WL15

Asia Communications and Photonics Conference and Exhibition
Technical Digest (CD) (Optica Publishing Group, 2009),
paper WL15
•https://doi.org/10.1364/ACP.2009.WL15

Apodization method by nonuniform spatial distribution of diffraction gratings for photorefractive wavelength filter

K. Suzuki, A. Okamoto, and S. Honma

Asia Communications and Photonics Conference and Exhibition 2009

Shanghai China
2–6 November 2009
ISBN: 978-1-55752-877-3

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K. Suzuki, A. Okamoto, and S. Honma, "Apodization method by nonuniform spatial distribution of diffraction gratings for photorefractive wavelength filter," in Asia Communications and Photonics Conference and Exhibition, Technical Digest (CD) (Optica Publishing Group, 2009), paper WL15.

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Abstract

We proposed two apodization methods by controlling nonuniform spatial distribution of diffraction gratings for the transmission type of the holographic wavelength filter with photorefractive medium. Optimizing the intensity ratio and shapes of two writing beams, the improvement of transmission capacity is greatly improved to suppress the crosstalk.

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