发明名称 |
LOW-CROSSTALK OPTICAL MULTIPLEXER/DEMULTIPLEXER AND ITS PRODUCTION |
摘要 |
PROBLEM TO BE SOLVED: To provide a low-crosstalk optical multiplexer/demultiplexer which is decreased in crosstalks by eliminating the coupling between waveguides. SOLUTION: This optical multiplexer/demultiplexer is formed with an array waveguide group 5 in which a plurality of the waveguides exist side by side between the sectorial slab waveguide 3 disposed on an input waveguide side and the sectorial slab waveguide 4 disposed on an output waveguide side. Clads 7 which part the respective waveguides of the array waveguide group 5 from each other are composed of materials containing elements to absorb the light of a signal light wavelength band. |
申请公布号 |
JP2000338343(A) |
申请公布日期 |
2000.12.08 |
申请号 |
JP19990146985 |
申请日期 |
1999.05.26 |
申请人 |
HITACHI CABLE LTD |
发明人 |
KASHIMURA SEIICHI |
分类号 |
G02B6/12;G02B6/28;(IPC1-7):G02B6/12 |
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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