发明名称 |
ARRAY WAVEGUIDE DIFFRACTION GRATING OPTICAL MULTIPLEXER/DEMULTIPLEXER |
摘要 |
<p>An arrayed waveguide grating type optical multiplexer/demultiplexer includes input waveguides, an input-side slab waveguide, an arrayed waveguide diffraction grating, an output-side slab waveguide, and output waveguides. A junction between each input waveguide and the input-side slab waveguide is tapered such that the end portion of the input waveguide gradually widens in the width direction of the path toward the input-side slab waveguide, and includes two separate small-width waveguide portions arranged separately from the end portion of the input waveguide and extending in a line with taper of the tapered end portion, and a single large-width waveguide portion arranged separately from the small-width waveguide portions. <IMAGE></p> |
申请公布号 |
EP1045263(A1) |
申请公布日期 |
2000.10.18 |
申请号 |
EP19990938582 |
申请日期 |
1999.08.23 |
申请人 |
THE FURUKAWA ELECTRIC CO., LTD. |
发明人 |
NAKAJIMA, TAKESHI;KOSHI, HIROYUKI;HASHIZUME, NAOKI |
分类号 |
G02B6/12;G02B6/125;G02B6/34;(IPC1-7):G02B6/125 |
主分类号 |
G02B6/12 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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