发明名称 |
Arrayed waveguide grating type optical multiplexer/demultiplexer |
摘要 |
An arrayed waveguide grating type optical multiplexer/demultiplexer of the invention eliminates the temperature dependency of the light transmission center wavelengths and suppresses an increase in insertion loss with a simple configuration even under the conditions of high temperature and high humidity. A waveguide forming area comprising an optical input waveguide, a first slab waveguide, an arrayed waveguide formed of a plurality of channel waveguides arranged side by side having a different length each other, and a plurality of optical output waveguides connected one by one is formed on a substrate. For example, the first slab waveguide is separated at crossed separation planes that cross the path of light passing through the first slab waveguide. On the crossed separation planes, a matching grease is applied. A thin film member for covering the area arranged with the matching grease is disposed to suppress the evaporation of the matching grease.
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申请公布号 |
US2002025116(A1) |
申请公布日期 |
2002.02.28 |
申请号 |
US20010904847 |
申请日期 |
2001.07.16 |
申请人 |
THE FURUKAWA ELECTRIC CO., LTD. |
发明人 |
KASHIHARA KAZUHISA;NARA KAZUTAKA;NEKADO YOSHINOBU;SAITO TUNETOSHI |
分类号 |
G02B6/12;G02B6/293;G02B6/34;(IPC1-7):G02B6/34;G02B6/26 |
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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