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Title |
A New Binary Multi-layer Diffraction Grating |
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Author |
Abbas Zarifkar, Reza Yousefi |
| Citation |
Vol. 8 No. 6 pp. 262-265 |
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Abstract |
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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Keywords |
WDM, Diffraction grating |
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