期刊名称：International Journal of Computer Science and Network Security
印刷版ISSN：1738-7906
出版年度：2008
卷号：8
期号：6
页码：262-265
出版社：International Journal of Computer Science and Network Security
摘要：In WDM communication systems, diffraction grating is an important component. Optical components such as multiplexers use diffraction grating in their structures. In these devices, a grating with good specification (high angular dispersion, high diffraction efficiency, and low polarization dependence) is strongly desired. Since reducing the reflection at the upper surface of a grating is an important issue in order to realize high optical performance, we propose a novel grating with multi-layer structure in which a thin layer is used for decreasing the reflection from the surface. A good design, which provides high optical performance in the broad wavelength band, is successfully obtained.
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