Sidelobe suppression of vertical coupler filter with an X-crossing configuration

被引：0
|
作者：
Chu, Sai Tak [1 ]
Pan, Wugan [1 ]
Sato, Shinya [1 ]
Maeda, Tsuyoshi [1 ]
Little, Brent E. [1 ]
Kokubun, Yasuo [1 ]
机构：
[1] Kanagawa Acad of Science &, Technology, Kawasaki, Japan
来源：
Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes & Review Papers | 1998年 / 37卷 / 6 B期
关键词：
Applications; (APP); -; Theoretical; (THR);
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学科分类号：
摘要：
An antiresonant reflecting optical waveguide (ARROW) type vertical coupler filter exhibiting low sidelobe characteristics is demonstrated. The sidelobe level of the filter has been suppressed by using an X-crossing arrangement to provide strength apodization along the device. The main sidelobe of the fabricated filter is measured to be less than -17 dB with the central wavelength in the 1.55 μm region. An analysis procedure which combines the coupled mode theory with the finite difference mode solver is also presented to efficiently calculate the vertical coupler filter response.
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页码：3708 / 3712
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