Title :
Apodization method by nonuniform spatial distribution of diffraction gratings for photorefractive wavelength filter
Author :
Suzuki, K. ; Okamoto, A. ; Honma, S.
Author_Institution :
Graduate School of Information Science and Technology, Hokkaido University, Sapporo, 060-0814, Japan
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.
Keywords :
Crosstalk; Diffraction gratings; Holography; Optical diffraction; Optical fiber filters; Optical filters; Photorefractive effect; Photorefractive materials; Wavelength division multiplexing; Writing;
Conference_Titel :
Communications and Photonics Conference and Exhibition (ACP), 2009 Asia
Conference_Location :
Shanghai, China
Print_ISBN :
978-1-55752-877-3
Electronic_ISBN :
978-1-55752-877-3
